CV15S cylinder damage

[Affordable in Indy]

I have a customer who has a 20 year old John Deere SST15 with a Kohler CV15S engine. He ran it without oil and, well, you know what happened. I'm trying to put a new crankshaft and connecting rod in it. However, when the connecting rod failed, it impacted the bottom of the cylinder and broke a chunk out. There appears to be wear marks in the cylinder. I don't think the piston travels down to where the damage is. Can I get this engine running or is the crankcase unusable?

 

[Fish]

I wouldn't bother with it myself. If it doesn't last very long, it will be a lot of money wasted, and your name will be associated with it.

 

[bertsmobile1]

that will be fine
get a die grinder or similar and make the hole smooth left right & top bottom so the edges do not break away

 

[Affordable in Indy]

Thank you for the replies.
Bertsmobile1, have you repaired an engine with this kind of damage before?

 

[VegetiveSteam]

I agree with Bert that it will be fine. I would let the customer know what you found and let them make the choice on how to proceed.

 

[Affordable in Indy]

I agree with Bert that it will be fine. I would let the customer know what you found and let them make the choice on how to proceed.

Ok. That's a good idea. Thank you.

 

[Affordable in Indy]

I wouldn't bother with it myself. If it doesn't last very long, it will be a lot of money wasted, and your name will be associated with it.

Thank you for your reply, Fish. You have a good point.

 

[Affordable in Indy]

Ok, I have one more question. Do you think I should replace the piston rings since I have to remove the piston anyway?

 

[StarTech]

With that lick I would be careful inspecting the crankcase for damage too. Usually here I find it at least cracked.

 

[Affordable in Indy]

Ok, I have one more question. Do you think I should replace the piston rings since I have to remove the piston anyway?

With that lick I would be careful inspecting the crankcase for damage too. Usually here I find it at least cracked.

Ok. I'll give it another look.