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2.5 200 hp heads

HumberJewel

Contributing Member
I just bought a 1991 2.5 litre 200 Hp V6.
While going over it, I noticed this rust stain at the top of the left head.
It looks like it is coming from the gasket.

Should I be concerned?
Should I pull the head?
What am I looking for?
Rust stain.jpg
 
I pulled the heads, cleaned the surfaces and I am basically ready to reinstall them.
I see the torq spec is 30 ft-lb plus 90 degrees with lubed bolts.
Then I saw this posting saying to warm the engine then let it cool, then loosen and retorq.
Is this what people do? It is 22 degrees in my garage today. Is that an issue?
Torq check.jpg
 
All outboard heads when taken off the first time are warped.------They need to be " trued up " before re-installing.----Torque must the applied to squeeze the gasket.----Not to straighten the head.
 
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