Piston clearance?

SenReg15

Registered User
Is it a problem if one of the cylinders comes slightly above the deck at TDC? If so, what needs to be done about it. Thanks

Jeremy
 
Are you sure that only 1 piston dome rises above the deck? How much above the deck is it? What work have you done to this engine?[block deck,line bore,heads and etc.]:confused:
 
I haven't checked all of the them. I know cylinders 1-3 are OK but 5 is slightly over. It goes less than 1 mm over. I've had the crank ground, everything balanced, and the deck resurfaced. The block also had machine work done before I bought it, although I'm not sure what all was done. Thanks

Jeremy
 
Reg you NEED to measure each and every one of your pistons deck heights, none of that about a half mm stuff! Get precise!!! I can tell you right now that the max deck height on these motors is +.010, if you truly have a half a mm then you have +.020 and you also have TROUBLE. Going by what you have said so far your crank grinder has offset ground at least 1 of your journals, this is NOT good. Measure every piston deck height and post results, we'll figure it out.
 

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