1987 Force 50hp head warpage.

[kbh121956]

Hello Group,
I am working on a 50hp, replacing the head gasket. What is the warpage amount before the head should be shaved?
Also, should any kind of a sealer be used on the new head gasket?

 

[racerone]

All outboard heads warp.----Resurface it with emery paper on a piece of thick glass.

 

[Nordin]

Yes like racerone says. Resurface it at a piece of glass and water sanding paper. sand it and do it in a 8 pattern way.
Check it with a straight ruler and a filer gauge.
0,004-0,006 gap is acceptable.
No sealer at the head gasket, assemble it dry and torque from center and out.
Torque it to spec number.

 

[kbh121956]

Yes like racerone says. Resurface it at a piece of glass and water sanding paper. sand it and do it in a 8 pattern way.
Check it with a straight ruler and a filer gauge.
0,004-0,006 gap is acceptable.
No sealer at the head gasket, assemble it dry and torque from center and out.
Torque it to spec number.

Thank you Nordin. You answered both of my questions.