BUSTED! What the INSIDE of a Briggs and Stratton 12.5 HP FLATHEAD engine looks like after NO OIL !!
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- Опубликовано: 6 сен 2024
- BUSTED! CAUTION: MAJOR ENGINE DAMAGE SHOWN! What the INSIDE of a Briggs and Stratton 12.5 HP FLATHEAD Powerbuilt cast iron sleeve engine looks like after RUNNING OUT OF OIL !! How to take apart a FLATHEAD motor. Removing the FLYWHEEL WITHOUT using Special tools! More of Jeff's TECH tips! Crankshaft cam tappets piston rings lifters blown broke broken rod gear valves vertical shaft flywheel remove Enjoy friends! Procedure FIX REPAIR remove new part stens which way take put off on rebuild test inspect check filter use special tool kit same as Husqvarna Husky John Jon Deere Deer Craftsman Poulan Yard Machines Scott's Scotts Cub Cadet Toro troy-bilt troybilt Troybuilt troy built bilt Ariens Jonsered Gravely Snapper Hayter Lawnboy Mountfield lowes home depot walmart seafoam grip tools will it run rebuild junkyard lawn mower
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PLEASE KEEP IN MIND when you are watching my videos: I am showing you the least expensive, quickest "backyard" methods for repairing or servicing your lawnmower or equipment. Replacing all components such as gaskets and fuel lines is always recommended when rebuilding or repairing equipment. With these videos I hope you are able to fix and repair your lawnmower yourself with minimal parts, knowledge and tools. Thank you for watching!
Here's a tip for you and all viewers. The use of the proper tools increases the margin of not having a physical accident exponentially. A walk back to the tool shed for the needed tool sure beats a trip to the ER.
YES! using the right tool is safer and usually easier
i was thinking the same thing
Also, proper footwear is recommended. Drop that on your toes and you’d be done for the day
Had a generator that was for sale, $50 with the same problem. B&S engine. No oil. Crank was fine. New rod, piston, rings, scrapped the aluminum off the crank and she was within 1/2 of a thousands to factory - so to spec still. I think it was $75 worth of parts and the generator still runs today. I've had it for probably 15 years. Maybe more like 20.
Jeff, we want to see you clean it up, buy a new rod and crank if really needed and put that sucker back together. Don't let that beauty go to the scrap yard.
I will think about that I hope someone buys it from me to rebuild. Thanks for watching
I agree
@@JeffsLittleEngineService I know this is old but did you ever get this old girl going again?
Don’t suppose you still have this for sale by any chance ?
Safety first Amigo. A friend of mine had his foot amputated above his ankle one day after being bitten by a spider because of using sandals doing similar work on a flower patch.
Exactly the same B&S engine that is on my 2009 MTD Lawn Tractor. A very good engine if taken care of.
He knows his stuff..but i would certainly reuse that cam.
EXACTLY the way to do it with flip flops on and a weak plastic work table
and in the garden, I like to challenge myself
One thing I noticed immediately was the oil drain plug on the side was missing, maybe it got unscrewed somehow while the engine was running and all the oil came out of it and blew the engine. But it can't hold oil without the oil plug. Like you said about the only thing that takes those engines out is no or low oil, it's rare too see one of those blown. They will start the smoking over time from years and years of use, like 25-30 years, but I rarely ever see one of those blown. Those were some of the best engines Briggs ever built it was during their heyday.
Is that the truth
Hehday. Hay day.
Tomato towmahto.
I say POS.
@@mateobrainardo4770 This definitely isn't your field of expertise, because no with any knowledge of small power equipment has ever called the 465cc Briggs L head a pos, not in the 10 years I've been working on this stuff steadily, your the first and you don't know what your talking about. Ask anyone with any real knowledge, they will tell you the same thing. I have more of those L heads outrunning the new 540cc pos Briggs 3x over, you get 25 years out of those engines easily, they normally outlast the machines their sitting on. I can't even count the amount of machines that had blown 540cc motors that ended up with those L heads transplanted and putting the machines back out to service. My personal machine is a '95 with the that engine, I'll never get rid of it, love that engine. I never have to worry about valve lash either, maybe once every 20 years. The new ones have tons of issues those old ones never had, the compression release fails on the regular, it never fails on those. I love those new engines, they break so often I end up with tons of nice, newer machinery for free and if the engine can't be fixed, I throw one of them flatheads on and out it goes, making it an overall better machine.Those, the opposed twins and the Quantums 1984-2003, the hey day. 🍅.
Now is Towmahto. Theirs a huge difference trust us.
"Repairs from the Patch".....This is why I subscribed...JEFF IS FEARLESS !!! KEEP 'EM COMING
lol! Thanks for watching friend!
one tough engine,oil drain plug fell out on me while bench testing,locked up,let it cool,broke it loose and it still ran fine
The way you said "no oil" 😂😂😂😂😂😂😂😂😂😂. Great video, buddy. Very informative. 👍
Glad you enjoyed it! thanks for watching
I found a classic 35 Briggs mower by side of road. No oil in it. Snapped rod. Will put a new rod and a ring kit to get it running hopefully
did you get it going? is it a 12.5HP B&S ?
One other thing that can break one of those engines is a bent crankshaft. Don't know how it happens or why but it happened to my 12 hp engine. Still runs, but shakes pretty bad. No, it isn't the flywheel I've already checked. Fortunately I have a spare of the same engine so just gotta finish the engine swap.
I have a 97 Yard Machine MTD riding mower with that same original engine and I still use it to mower my 2 acres with it no knocking or smoking
I really enjoyed the video. It is simply straight-forward and well explained step-by-step. I subbed. Two thumbs up from Kingsport, Tennessee!
Thanks friend!
I just redone a 12hp I/C flat head, broken rod, the crank journal is 1.2470, after clean up the alum smears. a new rod outer is 1.2450 , 3 mil over when cold.
The number of engines that die because of no oil is just crazy high. Then these engines are parted out to screw over the next person by association. This is the way it is Jeff. The number of times I have been asked to check an engine out and tell the owner of shady maintenance only to be told I do not know what I am talking about. My response is WHY DID YOU ASK ME TO BEGIN WITH ????. They must think I have a magic wand which I do not. Nice showing.
Jeff's - I'm surprised that you didn't try a little Hydrochloric acid soak on the crankshaft journal for the connecting rod. You're likely to find that the grooves and scars on the crankshaft are actually built up aluminum from the connecting rod and yoke. Boric acid eats up the aluminum and can leave you a nice, shiny journal to replace the connecting rod before you go chasing a new crankshaft or block. Saved many a scary looking motor this way...
check it out Greg I made a video! Thanks for watching! ruclips.net/video/mcp2dfbZ5U4/видео.html
Here is a suggestion. Buy a good 1/2" drive tool set with a breaker bar. Start the tear down with removing the cylinder head first and go from there. The previous owner never knew what an oil change was for after seeing this mess.
Thanks for the tip!
What’s wrong with wrenching on a 15/16” bolt with 1/8” drive socket? Might need a 3 ft pipe!
I got a Briggs & Stratton 12hp flat head engine just like it but mine had a wore out piston and it was smokin like crazy so took it off the Murray and repowered it with a Briggs & Stratton 14.5hp ohv engine
Same engine I have in my old Craftsman Tractor. Might save that crank iby soaking it in Muriatic acid and the aluminum off. I've done it before. I beat a new rod and it will run.
Great advice I will check that out
That's what's important the Cast iron Sleeve most Engines today are not and they self destruct quickly personally I love the Kohler KT725 22 horsepower V Twin Engine (725 cc)
Love those Briggs Flatheads!
Excellent video.Keep the good work. Love your running commentary.
Thank you very much!
Video istruttivi. Complimenti..!👍
Qui' in Italia su' you Tube non spiegano niente sui motori Briggs&stratton.. per non parlare dei ricambi dai costi esorbitanti.. saluti da Parma..
I'm currently reviving a flathead! That flywheel bolt is 15/16.
Okay whol,s been cutting onions 😭 that break,s my heart 💓 to see how it goes with a engine that was not care,d about
I’ve never used a puller. Always went “old school” with a long screw driver and a 2.5 lb ball peen hammer. Never failed.
Jeff shows just that at the fourteen thirty mark.
@@dkeith45 easier to make a basic puller from piece of old iron bedstead angle iron cut to 6 inches long with two holes drilled in to match flywheel distance, the sump cover bolts fit the flywheel thread. Just put an old socket into the top recess where the 24mm bolt goes and tighten down. Piece of cake !! no hammers, no damage.. Cheers.. Great video there. Just have to get a new conrod (bad oil day !!).. bang !! lostinfrance.
Loved it, a rare Briggs flathead fail!
There not that rare
@@65Pontiac389 They're not there
2 lesson from this video: 1. Always remember to check your oil. 2. Milk crates make bad work benches.
lol, good tips!
Is it worth it to get a new crank rod piston and rings and revive it. Just wondering. I love your demeanor, you always sound so calm. Love your channel.
Thanks for watching. Unfortunately I don't think it would be worth it in my opinion
@@JeffsLittleEngineService piston, rings ,gasgets are 109 on ebay
Noooo. We can still save it. CLEAR. Zap!
Oil: An engine's best friend! This is sad, because those synchro-balanced engines are a rare breed. I don't know if Briggs & Stratton even makes those anymore. Briggs & Stratton have largely transitioned to over head valve engines, but I don't know, if they make a synchro-balanced version with OHV. If they do, I'm their next customer! (I would love to find a horizontal shaft engine with this feature, for a smoother running generator)
Do they still make flathead engines?
all intek single cylinders are syncro balanced and they love to blow the block out
At least the sump bolts were tight on yours,mine were loose and was part of why it blew up in the first place
Don’t suppose you still have this for sale by any chance?
Yes, sadly it is still sitting in a box with new replacement parts waiting to be fixed... I am located near Portland, Oregon
Very fine!
I'll give you "a-buck-two-ninety-eight" for all the serviceable parts.
Awesome video, now I know whats inside. Thank you for posting !!! LOL plastic crate work bench.. 8-)
I MADE ME A PULL HANDLE TO GO ON THE RATCHET OUT OF A SHAFT FROM A WEED EATER WORKS GREAT. TIP 1
Good tip Jeff!
Tech tip#1 how to break a half inch rachet by hitting with a mallet
LOL!
GOOD Ole crates best friend to ah man's life lol
From what I understand this engine is not worth rebuilding?
well, that depends on how many parts need replacing
Thinks for the info
I have the same one except my carburetor is rusted and will not run
A new oem carb is apx $100
Can get a cheaper Chinese made one from Amazon, probably in the range of 15-25 bucks. Not OEM, but will work fine. Bought one for my Cub Cadet 107 kohler engine, and it works fine. However make sure you look up the part number for your carb and not mine or his, they are all different.
a guy was gonna show me one time how to remove the flywheel bolt. did it just like you did except when the ratchet spun around it came off and hit him right in the lip
Ouch that must have hurt
It can happen! lol
Hey,is he the Lippless guy on JohnBoy & Billy?
what would happen if you just replaced the rod and reassembled the engine as is?
I plan on it!
@@JeffsLittleEngineService I've subbed just for that lol
I wouldnt let you work on my wheelbarrow
(the fly wheel bolt is 15/16,, not 24mm)
righton man
I had a chimney fall on my 12.5and she still runs like a butey thay the tank of lawnmower engine's
Lot of engine is destroy by people not checking oil before use
Looks like a case of owner/operator
neglect/abuse.
yep, ran out of oil
Save the starter carburetor coil and air filter box the shroud and the muffler and I would scrap it
Yep. It’s what I call an Organ Donor. .
Yep.. what did it come off of that Snapper rer
It came off a different Rear engine Snapper than the one I made the video about
Can I have the intake valve
Hey Jeff your sure that’s not just aluminum from the piston rod stuck on the crank and not gouging ? I had the same issue on my honda engine crank, and I just took muriatic acid and wiped it on , and it ate all the aluminum off leaving a small,amount of wet sanding after.. it it was back to a smooth surface.. tell them you learned it from me ! Tip # 00001
LOL! good advice you may be right. I will inspect it a little closer
That’s how is done Son !
And the flywheel if it’s good
Oh yeah it’s coming loose Jeff so now what bigger hammer
I still have the mower deck on and am trying to get the two lower pulleys off, no bolt on the bottom and suggestions, thanks
heat n hammer
always interesting those horror videos
save that alternator
Hey Jeff, did you know that there's soap and water to clean up your hands?? Ha ha
I don't like to get greasy. I am greasy enough...lol
Sheesh, I watched the whole video and you didn't knock over the oil drain bowl...
very high RPM
Can I buy that motor
yes it is for sale
You get oil in those flowers and the wife just might shoot you.LOL, I bet you could just buff it out!!! Good video.
lol!
Um......your choice of work bench leaves me wondering.......
Um....why not just use a puller? The time it takes to do it the wrong way will never make up for the time it takes to do it right. Using a pry bar against parts never intended to handle the force, well yeah, what could go wrong?
Love the pan full of oil under the...um, er....workbench. Again, what could go wrong?
I appreciate a video showing information but can't understand bad planning or sloppy methods.
If you can work on an engine in a flower bed you can work on an engine anywhere......
For sale, I guess some of it is still good
I buy it.
Hey Jeff where do I get this book on tech tips?
I need to write one thanks for the suggestion! lol
How much you saleing it for
$70
“Saleing”. You sed saleing. I love to go saleing! The open sea, the wind in your hair! I LOVE saleing!
Where did the rest of the rod go?
it was in there just in many small pieces
You're about to give that engiine a "wedgie".
Assumption is: The crankshaft is no good.
Yes, however I am currently making a video on using muriatic acid to clean the crankshaft journal of the melted on aluminum bits. The crankshaft may be reuseable after all! Stay tuned
For sale? Would you take $12.50?
nope. lol
@@JeffsLittleEngineService Worth a shot lol, back to looking into rebuilding mine! I think its a valve issue. Never rebuilt an engine before, So this is going to be quite a learning experiance.
That’s like A DOLLAR an HOUR!
-Napoleon 🧨 Dynamite
Would have been watchable without the retro editing. Keep it simple dude. Very informative.
Just buy a new rod and a piston with rings, that should be it.
Jeff, that’s 28m707-0122 I may be able to use some of the parts. Please let me know thanks
put your purse down and hit it like you mean it
Who cares about the flower patch? Get things up on a table so we can see what is going on!
my next video may be from the chicken coop
NEVER wack the ratchet! NEVER!
I missed tech tips 278 - 567 984,
can you list them?
Thanks
Mouse nest took mine out.
aw crap sorryman
thats no good it was a quality engine Briggs and Stratton made before they went to crap today. as the flathead engines are no longer available that you Must go with a modern OHV engine. in whost cases besides a thrown rod the counterbalance weight breaks and goes through the back of the case as Briggs & Stratton calls it the syncro balance. but same with Kohler the engines are getting worse.
Get yourself a workbench for good nes sake
I have two and they are always full!
25$
Too bad you are probably on the opposite end of the world from me I have a greasy old 12.5 briggs that could be revived with most of that one.
Why do these posts keep getting deleted??? I'll try ONE Last Time>>> $9.08 Basic Medical Nitrite Exam Gloves (X-Large) 1 Boxes 100 Gloves,Blue,****-7004.
The rods tend to break often
I like flowers.
Jeff put some fucking shoes on. Your gonna fuck your feet up and you will regret not taking care of feet. Feet take all the abuse you put on yourself. And you will be in pain like me. It sucks having hurting feet 24/7
Gee tool supporter guy all the teeth are broken in my ratchet don't know why gimmie a new one
Report tool abuse it could save a life!
nice milk crate
It's my flowerbed workbench
Interesting failure, my lawn mover did same, but worse, camsaft try to eat those loosened parts, its bearings broke and saft itself twisted. Is this design failure because I have it filled with oil to mark? Those aluminium bearings are dirt cheap to make but really bad, shame on you B&S!
If there is overflow gas in your oil compartment from a flooded carb it may cause this
@@JeffsLittleEngineService Yes, that is good point. Year ago I wonder why oil is over top mark. I change oil but maybe initial damage was done.