If you haven't watched Lamb Chops and his rebuild do so. He got a Ducati specialist to do his and the ideos are very informative. Definitely worth a watch.
One tooth slip on the timing belt? Correct head/base gasket? High-lift cams? Ducatis run super tight tolerances so even small timing issues will ding something. Valves and guides probably toast though. Good to see it’s still fixable even if it is a 3D jigsaw of parts/bolts and broken bits.
Looking forward to this series! You are really putting out some great content. Valves definitely have touched, on both cylinders. Doesn't take much to bend a valve, ideally a leak down test would have been the thing to do. In this case, I'd be looking at getting all those valves out (mark and number where they went) and check them over. Sometimes the bend is so slight you won't even see it. I think you'll be looking to get the valves replaced and re-lapped at the very least. When you come to time it up, I'd reccomend getting a dial gauge indicator and checking the timing that way instead of going down the marking route, in my experience of working on Ducati's the stock timing marks can be a little out.
If the valves hit the piston, the valves will be bent. There may be connecting rod damage, too. Surprised you are starting this project. It seems the BMW was not finished.
The next project bike is a Ducati! This is going to be awesome. I’m planning for my next bike to be a Ducati ST4 with the 916 engine but in a nice comfy sports tourer configuration. Good luck with the project👍🏻
Interesting project looking forward to the rebuild .but thinking a lot of reading manuals etc .but with the Ducati tee shirt half way there You can do it Darren 🤟😈
Yes yes yes let’s see this would be very interesting as are all your videos record the whole lot I say and to take on a Ducati you’ve got some balls but I’m not a mechanic at all I just ride bikes😂
i'm assuming there is nothing special about the gearbox - its simply the shift linkage is flipped? Typically, if its an actual race gearbox, there is no neutral between 1st and 2nd, and neutral will be locked out until you press a button, to avoid accidentally selecting it.
Ohhh and nice meaty project. Interested to see where this goes but cam timing / chain would definitely be where my thinking would go, but I know less about Ducati's than you, so....
Why oh why did you take this on? It’s somewhat or a specialist project and any errors will cost you a fortune. Besides this you have even fixed the simply old GS Good luck, you are going to need it!
had something similar on my old cb250 it looked like the pistons was hitting the sparkplugs and bending the bottoms baffled the hell out of me but i had the camchain done and it seemed to fix it above my expertise and im still learning camchain nonsense lmao look forward to seeing the episodes on this
@SidekickSolo they are known for big end failure, especially when used hard on track. I would've thought the race bikes had forged rods? Bearing failure or stretched rods would cause piston to valve contact.
@@MrDesmonick thanks very much for the info. This is something I will definitely be looking into. Not sure how I will find out with out fully stripping. I believe that they had to run stock engines so should have standard rods in it.
@@SidekickSolo it hasn't dropped a valve though because they were all shut and nothing was bent. I wonder if it ingested a stone when it crashed and then spat it out. You could pour petrol into the ports on the heads. None should leak past the valves. That would give more info as to what happened
My thought was very slightly bent valves. In which case it will run but erraticly. But what was that actual cause of the contact in the first place. My thought is that it was assembled quickly and flicked on
I hope you all enjoy this new series. Please leave a thumbs up and a comment
Awesome 🤩 Looking forward to seeing the build 👍
Thanks bud. Let’s hope I can figure out how it goes back together 😜
If you haven't watched Lamb Chops and his rebuild do so. He got a Ducati specialist to do his and the ideos are very informative. Definitely worth a watch.
Thank you. I’ll take a look.
It could be a big or small end bearing gone which will allow the piston to move higher up in the cylinder
good luck, mate!
Fill the inlet and exhaust ports up with petrol or thinners to see if fluid runs out then you will no if the valves are bent.
Fastest way to check.
I wish you the best of luck, Ducati are a bit of a dark art from what I’ve heard. But if anyone can, it’s ‘The Sidekick’ 👍🏻
Thanks. You need a degree to understand the manual let alone work on it 😜
Looks like this is going to be an interesting series.
I’m seriously impressed. Look forward to seeing how you get on.
Thanks.
One tooth slip on the timing belt? Correct head/base gasket? High-lift cams?
Ducatis run super tight tolerances so even small timing issues will ding something. Valves and guides probably toast though. Good to see it’s still fixable even if it is a 3D jigsaw of parts/bolts and broken bits.
My thoughts are that it could be a tooth out on the timing chain. We will see tho.
Looking forward to this series! You are really putting out some great content.
Valves definitely have touched, on both cylinders. Doesn't take much to bend a valve, ideally a leak down test would have been the thing to do. In this case, I'd be looking at getting all those valves out (mark and number where they went) and check them over. Sometimes the bend is so slight you won't even see it. I think you'll be looking to get the valves replaced and re-lapped at the very least.
When you come to time it up, I'd reccomend getting a dial gauge indicator and checking the timing that way instead of going down the marking route, in my experience of working on Ducati's the stock timing marks can be a little out.
Thanks for the reply. I have never timed anything up with a dial gauge before but I agree I think it will be a must with this.
@@SidekickSolo There is no need to use a dial indicator. Ducati's timing marks are accurate.
Good winter project! Best of luck
Thank you!
Nice project. Success 🍀 I’m looking foward for the next episode
Thanks! 👍
Great video as always pal... looking forward to this one. Nice petrol tank on your bench too! ;P
(Chain/belt stretch?)
I will have to check the timing chain. Very strange that the timing is out. Still more investigation to do.
sounds like you pretty much got it figured out already
I’m not so sure about that 😅
well am sure you will figure it out youl be dr ducati before you know it
If the valves hit the piston, the valves will be bent. There may be connecting rod damage, too.
Surprised you are starting this project. It seems the BMW was not finished.
The next project bike is a Ducati! This is going to be awesome.
I’m planning for my next bike to be a Ducati ST4 with the 916 engine but in a nice comfy sports tourer configuration.
Good luck with the project👍🏻
Thanks mate. It’s one big jigsaw puzzle!! I’ve never even rode a Ducati before let alone worked on one.
Interesting project looking forward to the rebuild .but thinking a lot of reading manuals etc .but with the Ducati tee shirt half way there
You can do it Darren 🤟😈
Thanks mate. The manual are enough to give you a nose bleed 😝 they take some reading.
wow, you like a chellange mate, best of luck
Yes yes yes let’s see this would be very interesting as are all your videos record the whole lot I say and to take on a Ducati you’ve got some balls but I’m not a mechanic at all I just ride bikes😂
i'm assuming there is nothing special about the gearbox - its simply the shift linkage is flipped? Typically, if its an actual race gearbox, there is no neutral between 1st and 2nd, and neutral will be locked out until you press a button, to avoid accidentally selecting it.
I don’t know to be honest. I will have to find out.
Ohhh and nice meaty project. Interested to see where this goes but cam timing / chain would definitely be where my thinking would go, but I know less about Ducati's than you, so....
Great point!
Why oh why did you take this on? It’s somewhat or a specialist project and any errors will cost you a fortune.
Besides this you have even fixed the simply old GS
Good luck, you are going to need it!
Looking forward to following this project. What happened to your green Vespa? Do you still have it?
Thanks. Yes I still have the Vespa. I’m sure it will make an appearance on the channel at some point
Still alive mate? Haven’t heard nor seen any content from you since a while
Bottom cylinder gasket ? Measure also measure the deck height
TIMING CHAIN STRECH OR TENSIONER FAIL .?
What’s happening with the poor old GS ?
had something similar on my old cb250 it looked like the pistons was hitting the sparkplugs and bending the bottoms baffled the hell out of me but i had the camchain done and it seemed to fix it above my expertise and im still learning camchain nonsense lmao look forward to seeing the episodes on this
Thanks bud. I think this is going to be a learning curve for me too.
Big end bearings...😉
Thanks for the reply, what makes you think big ends?
@SidekickSolo they are known for big end failure, especially when used hard on track. I would've thought the race bikes had forged rods? Bearing failure or stretched rods would cause piston to valve contact.
@@MrDesmonick thanks very much for the info. This is something I will definitely be looking into. Not sure how I will find out with out fully stripping. I believe that they had to run stock engines so should have standard rods in it.
Looking forward to this one. Just a thought. Did you do a compression test first?
No compression test. I didn’t want to risk causing more damage by spinning the engine over.
@@SidekickSolo it hasn't dropped a valve though because they were all shut and nothing was bent. I wonder if it ingested a stone when it crashed and then spat it out. You could pour petrol into the ports on the heads. None should leak past the valves. That would give more info as to what happened
If ok the timing chain has stretched😮
That's it Ducati tee shirt man can fix it good luck lol
The tee shirt adds knowledge 😂
My thought was very slightly bent valves. In which case it will run but erraticly. But what was that actual cause of the contact in the first place. My thought is that it was assembled quickly and flicked on
It definitely shows signs of being put back together without care. I’m wondering if may have been put back together with the timing chain a tooth out.
Measure the valve clearances while the heads are intact, you have no idea if they are right or wrong at this stage.
Too
Is Old Yellow fixed ?
Not yet. It’s been an expensive few months but I’m hoping to get the parts soon.
Gs fixed?
Not yet. It’s been an expensive time recently but hoping to get the parts to repair old Yella soon.