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View Full Version : TR2/3/3A TR3 Head Gasket (Again)



RedTR3
08-26-2012, 07:15 PM
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?

TR3driver
08-26-2012, 07:24 PM
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.

TRTEL
08-26-2012, 09:49 PM
I will second that recommendation.

Tom Lains

RedTR3
08-26-2012, 10:50 PM
Hi Randall, perhaps my photo is not clear, this is the edge that is about 1" away from the #1 cylinder.

TR3driver
08-27-2012, 01:10 PM
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.