K321 Cylinder Bore/Piston Clearance

[J-Mech]

Well, I was going to make some suggestions, but since you already have the engine back together it doesn't really matter now.

[nutzboutoldies]

Originally Posted by J-Mech

Well, I was going to make some suggestions, but since you already have the engine back together it doesn't really matter now.

I sure would appreciate any suggestions you have. I don't plan on getting rid of this anytime soon and if this begins smoking again I'll definitely be taking it out again. I've gotten pretty good at the R&R.

[J-Mech]

Originally Posted by nutzboutoldies

I sure would appreciate any suggestions you have. I don't plan on getting rid of this anytime soon and if this begins smoking again I'll definitely be taking it out again. I've gotten pretty good at the R&R.

By then it will be too late to fix it. Probably is already anyway. This was a machine shop screw up, and you should have made them fix it, (by sleeving it since you are already at .030" over) or buy you another block. Your choices were to try a different brand of piston, in hopes it would fit tighter. You don't say what the ring gap was with a new set of rings, but I'm betting the gap was too far. A Kohler piston and ring set, if you used after market, may have tightened it up. Or, you could have made the shop that screwed up sleeve it. Like I said, too late now. If it starts smoking, only thing you can do is sleeve it, or junk the block. Next time, ask before putting it together and running it.

[nutzboutoldies]

Originally Posted by J-Mech

By then it will be too late to fix it. Probably is already anyway. This was a machine shop screw up, and you should have made them fix it, (by sleeving it since you are already at .030" over) or buy you another block. Your choices were to try a different brand of piston, in hopes it would fit tighter. You don't say what the ring gap was with a new set of rings, but I'm betting the gap was too far. A Kohler piston and ring set, if you used after market, may have tightened it up. Or, you could have made the shop that screwed up sleeve it. Like I said, too late now. If it starts smoking, only thing you can do is sleeve it, or junk the block. Next time, ask before putting it together and running it.

Thanks for your reply Jonathan, very good advise. I do agree that this was a machine shop error and I should have had them make it right. I will be looking for a new machine shop for any future work I need done. Up here in Northern Michigan they aren't very plentiful.