When I watched one of your videos for the first time, I was a bit worried about the dog. I thought he might get squashed. But then I realised that he wasn't showing indifference, he's just seen it all before. He's like the grizzled combat veteran who ignores the mortar barrage and only takes cover when he really needs to.
I own two of these engines, both generator sets in a fishing vessel. They are tough as nails as a rule with the bottom ends especially so. My guess is if someone rebuilt it they may have over stressed a rod bolt that broke, but it's anyone's guess now. If the crank can be saved and the balance shaft boss isn't broke where the drive gear sheared you could patch it and give it a go. Parts are plentiful for those engines so it shouldn't be to hard to get what you need. Arrangement number is the key to getting the right parts as they used those engines in all kinds of things. If you get to putting it back together the balance shafts are a bugger to time as they are driven by the oil pump idler gear and the plate that the pan bolts through and to has alignment bolt holes that you orientate them and the bolts hold them in place with crank at TDC as you install the oil pump. One tooth off and the balance shaft boss will let go. Had that happen when engineer got in a hurry! I'd scrounge up a runner if you are in a hurry, otherwise would be interesting to see your repairs! Enjoy the hell out of watching you resurrect all these different vehicles, thanks!
Yeah, the sensible thing would be to sell the digger for scrap value then buy one that works. That would be pretty boring though. Much more fun to try to put this one back together.
Great video. The two shafts on each side of the engine block are balancer shafts. From memory, they normally spin in the opposite direction to the crank, and at twice crank speed, they are timed along with the camshaft in the timing case. I've been taking keen interest in your diamond T because during ww2, one of my grandfathers drove a diamond T pulling dead tanks off the battlefield to remove the dead men and repair the tanks or Rob it for useful parts.
The more difficult way will always be the most entertaining. Also i like the way Ted had the foresight to get up and move when you where rolling the engine over in the workshop😂 clever boy👍
To bring it back from the dead would be best - Bores are fine as liners, weld up and reseal water jacket (seen vids on youtube how they do it in India - looks easy with a bit of heat) - They probably have a vid on a crank regrind using a pair of knickers and a sheet of 360 grit wet and dry if you look?
As much as I would love to watch you rebuild the engine, I understand the value of your efforts come to light on the resale. If I was purchasing a used digger, I would walk right past the one with a welded up block repair. Since you got the digger relatively for free, put a good used engine in it and make great money on the eventual resale. Awesome video Joe! And by the way, we are all learning useful lessons from Ted too! Enjoy the day. 😃👍🏻👍🏻⚙️🛠
I know families are families but I recon you give your Dad a quiet smile! What you want now is to visit that old vehicle emporium in Lincolnshire that has an engine for every occasion parked on its runways. It has a reference on Utube somewhere and probably has a whole engine that might be of reference to you.
At least a piece of timber was used as a cushion! One wonders though how much shock the piston takes when the diesel ignites on the power stroke. Far more than Mr. Hewes twatting a bit of wood I'd wager..
Thanks for these interesting videos.. its stuff I would love to do but my bodies too old and broken now to manage.. heartwarming to see how you tackle each task and just keep on rolling..
Usually watching you rebuild a machine is the best part. However, with this thing, having seen the damage and read through all of the comments, I'd go for a new engine. This is on the basis that you could spend a fair bit of cash and many hours trying to rebuild this monstrosity, and still end up with a wreck. A wreck incapable of anything more than growling at you. In the end you'll do the right thing I'm sure. 😊❤❤😊
The sloshing shafts are balance shafts, you will have to set/re-time them perfectly "Balance shafts are often used in inline-four engines, to reduce the second-order vibration (a vertical force oscillating at twice the engine RPM) that is inherent in the design of a typical inline-four engine."
Well, I never! Ted doesn't trust your forklift skills! You must have scared him on a previous occasion. Who would have thought that was even possible? This motor is completely rebuildable. All it takes is money for a rebuild kit and a couple of nickel welding rods for the window removal job. In the long distant past before mig welders were invented there were tradespeople called welders, long since gone the way of the dinosaur I am afraid 😂 that repaired this sort of thing daily. Some welding techniques from the 50s and 60s still have their place in the world. Look at CEE Australia's video on grader gearbox repair using spray welding! Genius. You too channels are the best u tube viewing about! Cheers and G'day from Tasmania.
I loved the way Ted took two steps back when you started to tip the engine over. Top safety dog! Think those two rotating half rods might be balance shafts. If you were to rebuild that 4 pot you'd have to replace the oil pump and clean out all the oil galleries, if there is the slightest chance that the engine failed because of an oil system failure. If you don't then it's a waste of money. Put a V8 in it!
Rebuilding this engine will be definitely more entertaining for us. There may be more things wrong with it. From every OTHER angle getting a new engine sounds better.
I so enjoy watching you work on these big Diesel engines. The delight I feel in witnessing you being able to smack something with a hammer because it is so robust is so satisfying. The engines I work with have magnesium castings and clearence differences in the shell bearings in microns. They break if you even think about using a blunt instrument.
If you think these are big diesel engines, you might want to hang around your local preserved heritage railway. The group I was in owned three diesel locos, the smallest of which was 1000hp.
Wow that’s pretty catastrophic. I think the 2 eccentric cam things may just be balancer shafts. But they Probably won’t compensate for a missing piston though 😂
I wondered about being balancers, too. Seems more likely that just to throw oil about. I don't completely know, but I reckon there are easier ways to distribute oil. Probably piston shrapnel got into the broken cog thing and turned out to be tougher than the cog. Welding the cog onto the shaft might be tricky so you may need a new shaft and poss engaging cog, too?
Having experienced rebuilding engines in the same state as this it always comes down to economics. It is often the cheapest to source a complete replacement engine than to struggle getting parts and machining this one again to be reliable. If it were mine I'd just chuck in a Perkins!
I think the funny shafts (one of which lost its drive gear) are balancer shafts. Make sure you get them positioned correctly when you put it back together or you'll make things vibrate even worse than normal!
According to eBay here in the US, a block is $3500 and a reman long block (block & head) is $10k. Trying to rebuild it may be the cheapest option depending on parts cost.... Finding a cheap doner would be the best thing - apparently these 3304 engines were used in wheel loaders & forklifts... Depends on how badly you need the excavator bits and what condition they are in.
Where's the fun in buying a replacement, go for the rebuild better content all round. A wise man once said " He who dears Rodney he who dears" 😊 PS I'd like to thank you guys for turning out such an insightful, informative channel where respect is shown from start to finish never a harsh word said about anyone and all working in perfect harmony. So don't change a thing.😅 great channel. Gary 🇬🇧🇬🇧
If it did not have a hole in the block I would say fix this one - we have every confidence that you can do that for the least amount of money. But for it to have any value to anyone put in a new engine in it and I am sure there is some money to be made either renting it out for many years or selling it outright. When you are done building a bomb shelter or a shop with a pit. Cheers Joe🍺
Now i know why there are so many abandoned diggers , part 2500 pounds, digger worth 2500 pounds , thanks guys for actually teaching us rather than just glissing over stuff
Repair, I fixed up a cat D6 82 a 1968 tractor that was headless in a field for 20 year. Turbo was seized but a gentle nudge and she whistled into life, worked it for a while then sold her to a collector. New liners and head gasket was all she needed.
Those two shafts are harmonic balancers. Invented by Fred Lanchester in 1907. Makes a rough 4 cylinder engine run like a slightly less rough 4 cylinder engine. Looks like one got jammed up with the debris and sheared the gear off.
Yes Fix and weld. Didnt someone offer you another dead engine, maybe you can get Con Rod and oil flinger out of it and even block on the cheap (Cost of Diesel to pick it up). I presume the Cat will only be used around the farm and not sold as a bodge it and scarper. See how cheap you can get it functional. Makes it way more interesting. I remember years ago fixing injectors from dead genset with grinding paste and Brake Clean. People fix stuff all over the world with zero budget.
To rebuild that one properly crank , pistons and liners complete gasket kit , balance shafts and timing is critical on them . Try and find second hand motor . Forget putting a 3208 in they are rubbish and it will be impossible to work on in frame . If repowering look for something mechanical between 3.5 and 5 litre 4 cyl Mazda do a good 3.5l 4cyl or izusu . Have fun cheers from Australia
I would replace the lump, refurb and paint the whole thing green. The old engine could be a pile of bits in the corner, every shed needs one of them, unless you have one already.
When you think it is oil starvation you should also damage on the crank main bearing / connection rod bearing / cam bearings. What I could see in the video it doesn’t look like that. You should see for your self. Ss mentioned above, fluid compression either in the combustion chamber or in the sump (sump over filled with oil/diesel/water) is good guess. Can you see on the piston damage if the connection rod is pulled out of the piston or pushed in? I know it’s hard to check with such a catastrophic chain of events.
A rough guess just from what I see in the video: Somehow the rod cap let go, so the rod came off the crank. I think this somehow happened on the up stroke, and the cylinder fired with out the big end cap in place. (Or maybe it was hydro lock,, but the cylinder firing seems more likely.) Either the rod cap or the end of the rod flopped to the side and jammed the balancer shaft. This broke the gear off the balancer shaft. The piston came down forcibly with the rod off to the side where it shouldn't have been, and either twisted it around the loose rod, or the rod got banged in the middle by the crank journal, and broke the piston to bits.
Mr Hewes, long time watcher and subscriber. Listening to you talk about your time.. I think it's more reasonable to get an Ebay engine and put that in it. I think the digger has more issues than just the engine for you to resolve and therefore you can get on with the job of making it and selling it on (or using as you need). The engine looks ok for you to do a RUclips refurb but to sell on I think it would be a no.
I think that deck spacer is because these engines used to be N/A ( or you can get N/A or Turbo models) so to bolt a turbo on it was a cheap fix to reduce the CR
I'd vote for repairing that engine. After all, your main purpose in life is to entertain your viewers. Thanks! You could do a proper fix on the hole in the block. No, not welding as it's only low pressure - so a large steel washer with a large rubber washer on each side of the hole plus a nut and bolt through them then lashings of sealant. I used that fix when I accidentally drilled through my dishwasher due to a faulty tape measure🤠
Oooh, that's cattled! That was like watching I Do Cars, complete with customer-installed inspection ports, a disconnecting rod & piston McNuggets. Hard to tell, I've no idea how much the parts will cost and you need lots, or there's an unknown V8 off the bay which may or may not be any good too. Tricky.
@@Morrisonspouchmy Yamaha RD125 LC most definitely needed the one in its engine. I found out how useful it was when I rebuilt it and mis-timed the shaft... aligned it correctly the second time and the bike no longer wanted to try and bounce up and down on its suspension lol. 😂
Cat 3304. Good reliable motor. Most if not all parts to repair it will be available aftermarket at reasonable cost. BTW, they are called Lanchester balance shafts.
Do whichever makes the most sense for you, depending on priorities, time, and money. if you defer repairing it in favor of a decision to buy off ebay, obtain a donor engine, etc., you can hold the rebuild for an inside the shop video when it's freaking cold outside. THAT'S when you want to be inside cutting, welding, etc. nice to get it done and with the job itself providing heat for the shop!😁 Everyone should own at least ONE tank!😁😎 👍🇺🇸😎
Used to strip similar and odd that sump fell off. The gaskets we came across almost welded surfaces together. The shells look brand new as when they are new they come with a gray surface that in time reveals a more silver surface. At a guess someone has previously had the sump off and changed the big ends.
Good god. That motor is more scrap that machine. You lads do some impressive work getting things working again, but this whole thing looks like it would be better used for spares on a new-used engine.
Lots of work if ya try to put this motor back together, and no promises, if you can get another motor off of eBay should be the way, save time, if the price is right, we have been here before with the 3304, ya should be able to find one at a fair price, just my thoughts from ya old cowboy buddy in Texas, oh yeah, that project to refloat the Titanic is still looking for a group like you and ya lads, I really think your the ones for the Job!
The cog has broken off one of the balance shafts, these are a rotating offset mass to reduce vibrations that would otherwise cause damage, these shafts have to be timed to the crank like a camshaft is timed, running the engine with them with the wrong timming or removed is bad you can watch the engine shake itself to bits
I wonder why this engine had such a catastrophic damage. Perhaps it had very bad mantainace such as never having oil change because CAT engines are renowned to be very reliable! But you have to work really hard, good work 👏 👍👍
Those shafts are balancer shafts so the engine doesn't shake itself and the excavator to bits. My Yamaha RD125 LC motorcycle had one.... on a smaller scale! :)
Piston crumble, al-fresco conrod, turbo el guano and cog-en-pan. What’s not to like? Up and running next Tuesday lunchtime, clouds of smoke, cup of tea, biscuit for Ted. No problem.
*Edit, read comments, yea the shaft with the busted gear and its mate are probably balance shafts. I had a Mitsubishi powered Mazda B2600 pickup truck. It had shafts in the engine that look very much like what you were saying could be to agitate the oil. They were some sort of balancer shafts. I think they were to reduce vibrations from the engine. I used an engine lathe and turned them into more or less round shafts that didn't do much of anything. They had to be there since other things were driven off them. I don't know about your scenario with this Cat engine but they look like the same concept.
Not to difficult. Bog up the holes in the block. Replace balance shaft and gear. Strip of leather and two jubilee clips round the big end . Of you go. What are balance shafts for if not to even out odd inbalances. But all said its better than the the t34. And a short block or scrap block should be relatively easy to get . Excellent vids remind me of the students l went to college. But then were your fathers age now.
The shaft with the broken bear is a balancer shaft to reduce the secondary vibrations. It will run without just a bit rougher. Best to take the other one out as well though.
The metal plate in between the block and the head is just a spacer plate. The shafts in the bottom end are balancing shaft turning to reduce vibrations. Try and see if you could get another core engine same as the one you got to get one good running engine. Or you could get a Perkins form a tractor.
New con-rod and piston and gasket, should be Ok. That shaft was most likely a dynamic vibration damper, that got a big end caught in it and sheared the teeth off the cog. If you get it running, it also needs two new teeth for the bucket... 😀😀😀
If you change engines to a different model, none of your piping will work. You'll be brazing pipe and fittings for 2 months. It's about money...if you can get another 3304 rebuilt vs rebuilding what you have. I see one sleeve, one piston and connecting rod, lower end bearings, and a gasket set. Your 4 cylinder engine was pretty widely used. Parts should be available. BTW, I think that piston was crushed by compressing water. Got to figure out what caused it...that problem is still there.
@@MrHewes No, the big end bolts failed you pulled one of them out of the sump, judging by the condition of the other bearings I.e. look mint, I think it was either incorrectly rebuilt or old bolts used when they should have been renewed.
@@slacko1971 yup. from memory all those bolts are meant to be replaced when rebuilding as they are TTY. if you reuse them, this can happen. they are expensive, so people cheap out.
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WWPTD? (what would Pakistani Truck do?) wear open toed sandals, break out the stick welder and go to town.
HHAHAHA I LOVE THAT CHANNEL
Send for Fitter Mohamed
😂😂😂
thats what i was going to say too
Love this comment lmao
loved the fact that as Joe was tipping the engine onto a pallet , Ted looked up & thought ' nope , this is sketchy & wandered off a bit '
He is the supervisor after all.
You know it's bad if Ted moves away. He barely moves with a tank headed for him!
I came here to comment the exact same thing. Yeah Ted knows his sh@t for sure.
Ted knew elfnsafety was a priority... 😂
Ted's seen things..
Can we all just take a moment to appreciate just what a top lad Ted the dog is?
Obviously the brains of the operation
Ted is quite possibly …. Top internet dog .
No flies on Ted !!
When I watched one of your videos for the first time, I was a bit worried about the dog. I thought he might get squashed. But then I realised that he wasn't showing indifference, he's just seen it all before. He's like the grizzled combat veteran who ignores the mortar barrage and only takes cover when he really needs to.
I agree. The dog is well used to the way of life….😂
The legend that is Ted ❤
The dog certainly knew when to get the f out the way. He's no fool that for sure. Bless him.🙂👍
Star of the show is Ted. Here's a vote for rebuilding the engine (if you can find a parts donor engine).
ted is the most sensible one in the workshop ! i think he is the safety officer
I own two of these engines, both generator sets in a fishing vessel. They are tough as nails as a rule with the bottom ends especially so. My guess is if someone rebuilt it they may have over stressed a rod bolt that broke, but it's anyone's guess now. If the crank can be saved and the balance shaft boss isn't broke where the drive gear sheared you could patch it and give it a go. Parts are plentiful for those engines so it shouldn't be to hard to get what you need. Arrangement number is the key to getting the right parts as they used those engines in all kinds of things. If you get to putting it back together the balance shafts are a bugger to time as they are driven by the oil pump idler gear and the plate that the pan bolts through and to has alignment bolt holes that you orientate them and the bolts hold them in place with crank at TDC as you install the oil pump. One tooth off and the balance shaft boss will let go. Had that happen when engineer got in a hurry! I'd scrounge up a runner if you are in a hurry, otherwise would be interesting to see your repairs! Enjoy the hell out of watching you resurrect all these different vehicles, thanks!
Messed up the balancing timing on a Massey Ferguson once. Damn thing tried to leave thru a side wall and it wasn't even in gear.
Bin off both balancer shafts - problem solved.. "You don't need to worry about vibrations..."
I think bringing this engine back to life would be eminently more fascinating
Yeah, the sensible thing would be to sell the digger for scrap value then buy one that works. That would be pretty boring though. Much more fun to try to put this one back together.
Great video. The two shafts on each side of the engine block are balancer shafts. From memory, they normally spin in the opposite direction to the crank, and at twice crank speed, they are timed along with the camshaft in the timing case. I've been taking keen interest in your diamond T because during ww2, one of my grandfathers drove a diamond T pulling dead tanks off the battlefield to remove the dead men and repair the tanks or Rob it for useful parts.
The more difficult way will always be the most entertaining. Also i like the way Ted had the foresight to get up and move when you where rolling the engine over in the workshop😂 clever boy👍
He knows the drill
To bring it back from the dead would be best - Bores are fine as liners, weld up and reseal water jacket (seen vids on youtube how they do it in India - looks easy with a bit of heat) - They probably have a vid on a crank regrind using a pair of knickers and a sheet of 360 grit wet and dry if you look?
As much as I would love to watch you rebuild the engine, I understand the value of your efforts come to light on the resale. If I was purchasing a used digger, I would walk right past the one with a welded up block repair. Since you got the digger relatively for free, put a good used engine in it and make great money on the eventual resale. Awesome video Joe! And by the way, we are all learning useful lessons from Ted too! Enjoy the day. 😃👍🏻👍🏻⚙️🛠
I bet there are other faults too than need addressing, get a good used engine and spend your time fixing the other bits
Hello Mr Hewes I think the right move for you is to replace the engine and then keep this one for other spares.:)
I know families are families but I recon you give your Dad a quiet smile! What you want now is to visit that old vehicle emporium in Lincolnshire that has an engine for every occasion parked on its runways. It has a reference on Utube somewhere and probably has a whole engine that might be of reference to you.
Folkingham 👍
Loved how you teased the pistons to move, subtle does it every time 😅
At least a piece of timber was used as a cushion! One wonders though how much shock the piston takes when the diesel ignites on the power stroke. Far more than Mr. Hewes twatting a bit of wood I'd wager..
Try to fix and weld it. It's just more interesting to watch.😊
A dash of PVA and some Pritt Stick should do the tricn
I'll 2nd that
Thanks for these interesting videos.. its stuff I would love to do but my bodies too old and broken now to manage.. heartwarming to see how you tackle each task and just keep on rolling..
Usually watching you rebuild a machine is the best part. However, with this thing, having seen the damage and read through all of the comments, I'd go for a new engine. This is on the basis that you could spend a fair bit of cash and many hours trying to rebuild this monstrosity, and still end up with a wreck. A wreck incapable of anything more than growling at you.
In the end you'll do the right thing I'm sure. 😊❤❤😊
The sloshing shafts are balance shafts, you will have to set/re-time them perfectly "Balance shafts are often used in inline-four engines, to reduce the second-order vibration (a vertical force oscillating at twice the engine RPM) that is inherent in the design of a typical inline-four engine."
Well, I never! Ted doesn't trust your forklift skills! You must have scared him on a previous occasion. Who would have thought that was even possible? This motor is completely rebuildable. All it takes is money for a rebuild kit and a couple of nickel welding rods for the window removal job. In the long distant past before mig welders were invented there were tradespeople called welders, long since gone the way of the dinosaur I am afraid 😂 that repaired this sort of thing daily. Some welding techniques from the 50s and 60s still have their place in the world. Look at CEE Australia's video on grader gearbox repair using spray welding! Genius. You too channels are the best u tube viewing about! Cheers and G'day from Tasmania.
Another Tasmanian, G’day from outer Hobart 👍😁
@@ShevillMathers old beach here, g,day.
It's a question of time & money, if there's an engine ready to go then go with that Joe, would love to see a rebuild.
I loved the way Ted took two steps back when you started to tip the engine over. Top safety dog! Think those two rotating half rods might be balance shafts. If you were to rebuild that 4 pot you'd have to replace the oil pump and clean out all the oil galleries, if there is the slightest chance that the engine failed because of an oil system failure. If you don't then it's a waste of money. Put a V8 in it!
It's a dead cat. Of course there are maggots inside
Thanks for the great video`s Joe
Rebuilding this engine will be definitely more entertaining for us. There may be more things wrong with it. From every OTHER angle getting a new engine sounds better.
I so enjoy watching you work on these big Diesel engines. The delight I feel in witnessing you being able to smack something with a hammer because it is so robust is so satisfying. The engines I work with have magnesium castings and clearence differences in the shell bearings in microns. They break if you even think about using a blunt instrument.
I don’t belong in this modern age of working out how little metal they can use to save 1p 🤣
@@MrHewesJust think of the weight savings you can achieve on your 20 tonne excavator 😂 she'll handle like an F1 car around the corners
If you think these are big diesel engines, you might want to hang around your local preserved heritage railway. The group I was in owned three diesel locos, the smallest of which was 1000hp.
Wow that’s pretty catastrophic. I think the 2 eccentric cam things may just be balancer shafts. But they Probably won’t compensate for a missing piston though 😂
I wondered about being balancers, too. Seems more likely that just to throw oil about. I don't completely know, but I reckon there are easier ways to distribute oil. Probably piston shrapnel got into the broken cog thing and turned out to be tougher than the cog. Welding the cog onto the shaft might be tricky so you may need a new shaft and poss engaging cog, too?
!00% balance shafts, lots of 4 cylinders have them in one way or another.
Having experienced rebuilding engines in the same state as this it always comes down to economics. It is often the cheapest to source a complete replacement engine than to struggle getting parts and machining this one again to be reliable. If it were mine I'd just chuck in a Perkins!
That level of self destruction must've sounded VERY impressive
Albeit briefly
I think the funny shafts (one of which lost its drive gear) are balancer shafts.
Make sure you get them positioned correctly when you put it back together or you'll make things vibrate even worse than normal!
A cam and piston should be relatively easy to find since Cat is the most common here in the US.I will do some searching.
Complete faith and confidence that you can fix'er up! Plus, that has more of a "Oh my God it worked" aspect then simply replacing it!
Stupid is, Stupid does
According to eBay here in the US, a block is $3500 and a reman long block (block & head) is $10k. Trying to rebuild it may be the cheapest option depending on parts cost.... Finding a cheap doner would be the best thing - apparently these 3304 engines were used in wheel loaders & forklifts... Depends on how badly you need the excavator bits and what condition they are in.
Over here in the UK one seller has a complete over haul kit (Pistons, rings shells and gaskets) for £787 and theres a parts only engine for £1k
I love watching you lot working, I’m learning so much. Please stay safe, sometimes it looks so dangerous. 👍👍👍
Love this channel not so work, health and safety just work! Brilliant.
Love the bit when Ted thought, 'Nah. I think I'll go stand over here!' Clever boy!
Ted looks like a wonderful companion. Thank you for another interesting video. Looking forward to see what becomes of the digger.
Where's the fun in buying a replacement, go for the rebuild better content all round. A wise man once said " He who dears Rodney he who dears" 😊 PS I'd like to thank you guys for turning out such an insightful, informative channel where respect is shown from start to finish never a harsh word said about anyone and all working in perfect harmony. So don't change a thing.😅 great channel. Gary 🇬🇧🇬🇧
Ted was supervising the gentle engine rotation on the pallet!...if only we knew Ted's thoughts at that moment!.
Just another 17 minutes of awesomeness thanks guys keep it up ✅👍🏻🍺
If it did not have a hole in the block I would say fix this one - we have every confidence that you can do that for the least amount of money. But for it to have any value to anyone put in a new engine in it and I am sure there is some money to be made either renting it out for many years or selling it outright. When you are done building a bomb shelter or a shop with a pit. Cheers Joe🍺
Nothing deters Joe and the team, Ted obviously the Supervisor?
Great content.
Now i know why there are so many abandoned diggers , part 2500 pounds, digger worth 2500 pounds , thanks guys for actually teaching us rather than just glissing over stuff
My Dad spoke of welding up broken blocks on crane engines during W2. It is hard to weld cast iron but not impossible. Hopr that helps. GL
Repair, I fixed up a cat D6 82 a 1968 tractor that was headless in a field for 20 year. Turbo was seized but a gentle nudge and she whistled into life, worked it for a while then sold her to a collector. New liners and head gasket was all she needed.
Those two shafts are harmonic balancers. Invented by Fred Lanchester in 1907. Makes a rough 4 cylinder engine run like a slightly less rough 4 cylinder engine. Looks like one got jammed up with the debris and sheared the gear off.
Good one really enjoy your way of working. Keep Safe
I think the rotating rods are balancing shafts. they get timed up with the pistons to offset some vibrations
Exactly !
I think it just needs some Bondo over that hole and some new yellow paint. Great video love Ted he is a star.
Yes Fix and weld. Didnt someone offer you another dead engine, maybe you can get Con Rod and oil flinger out of it and even block on the cheap (Cost of Diesel to pick it up). I presume the Cat will only be used around the farm and not sold as a bodge it and scarper. See how cheap you can get it functional. Makes it way more interesting. I remember years ago fixing injectors from dead genset with grinding paste and Brake Clean. People fix stuff all over the world with zero budget.
wanna see that block being welded up and the old 4 banger fixed
Good work as always
Jim
To rebuild that one properly crank , pistons and liners complete gasket kit , balance shafts and timing is critical on them . Try and find second hand motor . Forget putting a 3208 in they are rubbish and it will be impossible to work on in frame . If repowering look for something mechanical between 3.5 and 5 litre 4 cyl Mazda do a good 3.5l 4cyl or izusu . Have fun cheers from Australia
Fascinating to watch could have been another hour excellent as always really enjoyed 👌
Save the engine Mr.H! A lot more interesting than just replacing it! 🤩👍
Tusen takk for god underholdning 👍🤗👍
it wouild be cool if you somehow repair that engine, i think the option of welding it and showing the process would be awesome
I would replace the lump, refurb and paint the whole thing green. The old engine could be a pile of bits in the corner, every shed needs one of them, unless you have one already.
When you think it is oil starvation you should also damage on the crank main bearing / connection rod bearing / cam bearings. What I could see in the video it doesn’t look like that. You should see for your self. Ss mentioned above, fluid compression either in the combustion chamber or in the sump (sump over filled with oil/diesel/water) is good guess. Can you see on the piston damage if the connection rod is pulled out of the piston or pushed in? I know it’s hard to check with such a catastrophic chain of events.
A rough guess just from what I see in the video:
Somehow the rod cap let go, so the rod came off the crank. I think this somehow happened on the up stroke, and the cylinder fired with out the big end cap in place. (Or maybe it was hydro lock,, but the cylinder firing seems more likely.) Either the rod cap or the end of the rod flopped to the side and jammed the balancer shaft. This broke the gear off the balancer shaft. The piston came down forcibly with the rod off to the side where it shouldn't have been, and either twisted it around the loose rod, or the rod got banged in the middle by the crank journal, and broke the piston to bits.
Mr Hewes, long time watcher and subscriber. Listening to you talk about your time.. I think it's more reasonable to get an Ebay engine and put that in it. I think the digger has more issues than just the engine for you to resolve and therefore you can get on with the job of making it and selling it on (or using as you need).
The engine looks ok for you to do a RUclips refurb but to sell on I think it would be a no.
I think that deck spacer is because these engines used to be N/A ( or you can get N/A or Turbo models) so to bolt a turbo on it was a cheap fix to reduce the CR
I'd vote for repairing that engine. After all, your main purpose in life is to entertain your viewers. Thanks! You could do a proper fix on the hole in the block. No, not welding as it's only low pressure - so a large steel washer with a large rubber washer on each side of the hole plus a nut and bolt through them then lashings of sealant. I used that fix when I accidentally drilled through my dishwasher due to a faulty tape measure🤠
Easy fix = new engine, satisfying fix would be to get that one running again😊
Oooh, that's cattled! That was like watching I Do Cars, complete with customer-installed inspection ports, a disconnecting rod & piston McNuggets. Hard to tell, I've no idea how much the parts will cost and you need lots, or there's an unknown V8 off the bay which may or may not be any good too. Tricky.
The broken shaft in a balancer unit . They contra rotate in relation to the crank & make for a smooth running engine.
Would absolutely love to see you get that engine running again!!
Gotta love that pool stepladder thing, sir hewes!
Must have been an 'exciting' moment for the operator when that piston failed!. 🤣 Methinks a second hand motor is a go. Nuff said!
🙂
another engine sounds favorite, with the original it could be a never ending shopping list
Four pistons is a luxury.
Give it the old "farmer fix"
That halfshaft will have been a balancing shaft.
Past tense.
This
Likely don’t need it. Always taken out on race cars 😂
@@Morrisonspouchmy Yamaha RD125 LC most definitely needed the one in its engine. I found out how useful it was when I rebuilt it and mis-timed the shaft... aligned it correctly the second time and the bike no longer wanted to try and bounce up and down on its suspension lol. 😂
@@TachyonDriver badly timed balance shaft is a lot worse than no balance shaft
Cat 3304. Good reliable motor. Most if not all parts to repair it will be available aftermarket at reasonable cost.
BTW, they are called Lanchester balance shafts.
It probably went “BOOM” and immediately stopped running so non of the slag circulated through the oil into all the journal bearings or cams.
Do whichever makes the most sense for you, depending on priorities, time, and money. if you defer repairing it in favor of a decision to buy off ebay, obtain a donor engine, etc., you can hold the rebuild for an inside the shop video when it's freaking cold outside. THAT'S when you want to be inside cutting, welding, etc. nice to get it done and with the job itself providing heat for the shop!😁
Everyone should own at least ONE tank!😁😎
👍🇺🇸😎
No-one can dispute... Your Dog is very clever.
Used to strip similar and odd that sump fell off. The gaskets we came across almost welded surfaces together. The shells look brand new as when they are new they come with a gray surface that in time reveals a more silver surface. At a guess someone has previously had the sump off and changed the big ends.
It was like watching CSI on an unfortunate engine.
PS Me Huwes your the master of the understatement.
Thanks Joe, I had to cut out of my Rammstein video for this. I'm back on it, with a fresh beer.
2:55 "Why are there maggots?" She nicely summed up the whole rest of the autopsy.
The broken shaft is one half of the balancer unit. They contra rotate in relation to the crank & make for a smooth running engine.
Good god. That motor is more scrap that machine. You lads do some impressive work getting things working again, but this whole thing looks like it would be better used for spares on a new-used engine.
Lots of work if ya try to put this motor back together, and no promises, if you can get another motor off of eBay should be the way, save time, if the price is right, we have been here before with the 3304, ya should be able to find one at a fair price, just my thoughts from ya old cowboy buddy in Texas, oh yeah, that project to refloat the Titanic is still looking for a group like you and ya lads, I really think your the ones for the Job!
The cog has broken off one of the balance shafts, these are a rotating offset mass to reduce vibrations that would otherwise cause damage, these shafts have to be timed to the crank like a camshaft is timed, running the engine with them with the wrong timming or removed is bad you can watch the engine shake itself to bits
Was the cab seat discolored by any chance?
Mr hewes FFS I'm a welder and I know those are counter Ballance shafts!! Lol.
Enjoyable video thanks
I wonder why this engine had such a catastrophic damage. Perhaps it had very bad mantainace such as never having oil change because CAT engines are renowned to be very reliable! But you have to work really hard, good work 👏 👍👍
Those shafts are balancer shafts so the engine doesn't shake itself and the excavator to bits. My Yamaha RD125 LC motorcycle had one.... on a smaller scale! :)
First time i ever saw a Ted remove an excavator engine all on his own! good boy Ted.
Piston crumble, al-fresco conrod, turbo el guano and cog-en-pan.
What’s not to like?
Up and running next Tuesday lunchtime, clouds of smoke, cup of tea, biscuit for Ted. No problem.
Three cylinder engines are spot on to support your environmental credibility 😂
Good luck. I enjoy your channel.
Always good to see Ted overseeing operation. And it is far to bloody hot to working on big lips of iron my condolences
We repaired one like this,it had been overreved,knocked a hole in the block,it was saved,new conrod and a patch over the hole
Brace yourself for the price of Cat spares! Great video...many thanks
nothing like a disconnecting rod and piston mcnuggets to make your day
*Edit, read comments, yea the shaft with the busted gear and its mate are probably balance shafts.
I had a Mitsubishi powered Mazda B2600 pickup truck. It had shafts in the engine that look very much like what you were saying could be to agitate the oil. They were some sort of balancer shafts. I think they were to reduce vibrations from the engine. I used an engine lathe and turned them into more or less round shafts that didn't do much of anything. They had to be there since other things were driven off them. I don't know about your scenario with this Cat engine but they look like the same concept.
Ted is such a patient dog...
Not to difficult. Bog up the holes in the block. Replace balance shaft and gear. Strip of leather and two jubilee clips round the big end . Of you go. What are balance shafts for if not to even out odd inbalances.
But all said its better than the the t34. And a short block or scrap block should be relatively easy to get . Excellent vids remind me of the students l went to college. But then were your fathers age now.
The shaft with the broken bear is a balancer shaft to reduce the secondary vibrations. It will run without just a bit rougher. Best to take the other one out as well though.
The metal plate in between the block and the head is just a spacer plate. The shafts in the bottom end are balancing shaft turning to reduce vibrations. Try and see if you could get another core engine same as the one you got to get one good running engine. Or you could get a Perkins form a tractor.
Would a Perkins share same bell housings
@@MrHewes They don’t, but it’s a cheaper replacement probably. Shouldn’t be to hard to make it fit somehow xD Good luck love the vids!
The two shafts at the bottom are balance shafts usually only found on 3 or 4 cyl engines. There timed to the crank
New con-rod and piston and gasket, should be Ok. That shaft was most likely a dynamic vibration damper, that got a big end caught in it and sheared the teeth off the cog. If you get it running, it also needs two new teeth for the bucket... 😀😀😀
If you change engines to a different model, none of your piping will work. You'll be brazing pipe and fittings for 2 months. It's about money...if you can get another 3304 rebuilt vs rebuilding what you have. I see one sleeve, one piston and connecting rod, lower end bearings, and a gasket set. Your 4 cylinder engine was pretty widely used. Parts should be available.
BTW, I think that piston was crushed by compressing water. Got to figure out what caused it...that problem is still there.
That’s an interesting thought about why it may have failed
@@MrHewes No, the big end bolts failed you pulled one of them out of the sump, judging by the condition of the other bearings I.e. look mint, I think it was either incorrectly rebuilt or old bolts used when they should have been renewed.
@@slacko1971 yup. from memory all those bolts are meant to be replaced when rebuilding as they are TTY. if you reuse them, this can happen. they are expensive, so people cheap out.
That shaft with the broken gear is a balance shaft. It's critical for removing engine vibrations.