welderman85 53 #1 Posted January 20, 2013 How many rebuilds van a kohler block take?can they be resleved or once they get bored that's it. Thanks for any help Share this post Link to post Share on other sites
TT-(Moderator) 1,162 #2 Posted January 20, 2013 How many times they can be rebuilt varies with the individual block. The amount of wear and/or damage to the bore determines how much machine work is needed to get the bore back in specification. If it needs bored .030" the first time around, that's normally as far as it will go with "off the shelf" parts. I have seen blocks crack across the deck (between the valves and the bore) that could not be used, even though they were fine otherwise. "Virgin" cast iron single cylinder Kohler blocks do not have sleeves. Some blocks worn beyond the maximum oversize can be sleeved - providing you can find a shop that can & will do it and if the proper sleeve can be purchased. (or made - if you're that desperate) Share this post Link to post Share on other sites
welderman85 53 #3 Posted January 20, 2013 Thankyou I didn't want to ask the question and sound dumb but I didn't know.I used to race dirt bikes and after a few races you would get it sleved and and put in a new piston. But i didn't know if it was thE easy for the old motors Share this post Link to post Share on other sites
oldredrider 2,553 #4 Posted January 20, 2013 I've got a K-341 in the machine shop being re-sleeved right now. It was bored at .030 but I felt it still had life left in it. Should be ready this week so .I'll let you know how it turns out when I pick it up. Share this post Link to post Share on other sites
KATO 115 #5 Posted January 20, 2013 They can be sleeved if necessary ,just be sure the machine shop knows what their doing . I've seen it where the wrong sleeve was used and too much material was removed. the block then cracked and the top of the cylinder broke off. iv'e also seen sleeves not installed tight enough and when the cyl head was removed the sleeve would go up and down with the piston. Don't let that scare you, it can certainly be done .... Just be careful of your choice of machinist's Share this post Link to post Share on other sites
