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TR2/3/3A TR3 Head Gasket [Again]

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RedTR3

RedTR3

Jedi Trainee
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I just discovered that upon close inspection, the NOS Payen head gasket that I've been saving has a small defect - it has this odd "fold" on a small portion of the outer edge where the main sheet is not retained by the edge wraparound. How critical is the outer edge? Question: Does this look useable or should I throw it out?
 

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TR3driver

TR3driver

Great Pumpkin - R.I.P
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I'd probably give it a try. My experience has always been that compression gases are the hardest thing to keep sealed, and that area only has to seal against coolant.
 
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RedTR3

RedTR3

Jedi Trainee
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Hi Randall, perhaps my photo is not clear, this is the edge that is about 1" away from the #1 cylinder.
 
TR3driver

TR3driver

Great Pumpkin - R.I.P
Offline
Yes, but there is water jacket between that edge and the cylinder. The really heavy-duty sealing happens at that inner ring around the cylinder. If that was damaged, I'd say "no go", but I think that outer edge will be fine. It only has to hold 20-30 psi tops, not the 1000+ psi inside the cylinder.
 
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