Head bolt sealer

[Dusty B]

Which would be best for sealing the head bolts?? Have anti-seize compound or permeates # 2 (non-hardening)! Getting ready to button back up after doing the valves!! Dusty B

 

[tst]

I prefer a Teflon sealer, seals against the coolant and the bolts will always come out easy if they need to be removed in the future

 

[John *.?-!.* cub owner]

I also prefer the TFE paste.

 

[Gary Dotson]

Dusty, anti-seize compound is not a sealant! Of your two choices, #2 Permatex will work. I, too, prefer PTFE paste.

 

[john2189]

Permatex Aviation Form a gasket works too

 

[Ken (48 Cub)]

The late-great George Willer recommended Teflon Pipe Paste to me years ago and that was good enough for me!

 

[Jim Becker]

It seems to me a bit of a stretch when Permatex calls their #2 "non-hardening". OK, it doesn't turn into an adobe brick but it sure is stiff, no way you could consider it a lubricant. The torque specs for the bolts assume the bolt is lubricated. PTFE paste is a sealer and a lubricant, pretty well makes it the ideal choice for the head bolts.

For anyone that is unsure, "Teflon" is a trademark name for PTFE. So a recommendation for either is the same thing.

 

[Dusty B]

OK! Thanks guys! Have some PTFE ordered!