How much can a block be off on this tractor and still get the head gasket to seal. Between one and two cylinders it is low about 3 thousandths of an inch and this is where the head gasket blew last time. We did find that that sleeve was sticking out about 8 thousandths of an inch which would have held the head gasket up on that head design. We filed the sleeves down flush with the block and that is when we found out we were low between those two cylinders. Will this seal now that the sleeves are flush with the block (we are low .003) or is there something to try on that spot. Some say Coppercote but in the past I have not had good luck with that. By the way this is a gas 460. TIA.
- Thread starter shoptek
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the tractor vet
Well-known Member
Well first off on a C221 the sleeves can stand out of the block up to .006 or be flush . Now maybe that sleeve moved up at one time and stuck there or maybe when it was overhauled they did not get the contour bore cleaned and did not get it all the way down ??? As to milling the head you can take off what ever you need to dress it to get it to clean up . Also spend the extra bucks and get the head gskt from Case I H as the ones you get from the parts store will fit BUT they will not seal as they are not quiet the same .
OK we filed the sleeves down to about flush with the block but now we found out where the head gasket blew the block has a .003 depression right between the cylinders. We are not going to have the block decked. will this cause a problem again there. where it blew one sleeve was flush and the other stuck up .009, I assume that would severely complicate the problem, that is why we filed the sleeves down flush. Is .003 too much of a depression between cylinders, if so any suggestions besides decking the block. TIA
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