Replacing head gasket

[sas]

Friend has 40hp 1974 Evenrude. He has replaced head gasket. When re-placing head on engine what clearance should there be with a feeler gauge? Does this make sense?

 

[rodbolt]

Re: Replacing head gasket

hello<br /> after replacement? after there should be zero clearance <br /> I think you are refering to how to check the head. after cleaning the head lay a staight edge acrossed the surface in both a vertical and diagonal pattern max clearence at any one spot is .004". when in doubt surface the head. that small head can be done on a floor mounted belt sander or 120 grit of a plate of glass. after surfacing and cleaning the head you need to find the cause of the failure. most head gaskets dont just fail. if you dont find/fix the cause it will fail again.<br /> good luck and keep us posted

 

[sas]

Re: Replacing head gasket

Thanks for your reply. I am taking a nite school course on outboards repair and maintanence and we are just rebuilding motors that we have. But I will keep you posted on our progress.<br /><br />Thanks again.