I am about to assembly head on a 8N Ford. The head bolts go into the water jacket, so I am thinking about putting some thread sealant on the bolts. I have been using a pipe sealant with Teflon made by loctite. I cant seem to find that in the parts stores anymore. What does everybody else use to seal their head bolts so coolant doesnt leak?
- Thread starter montidale
- Start date
timcasbolt
Well-known Member
ndian Head shellac compound.
Steve@Advance
Well-known Member
Automotive high temp silicone.
hoof print
Member
Super H Mike
Member
I have used many different types over the years, and have had trouble a few times. Now I only use ARP part #100-9904 and never had any trouble since.
redforlife
Well-known Member
I'd mix up some J.B. weld and coat the
bolt threads. Screw them in before it
sets up. I hope you don't want to take
them back out. LOL.
No, that was just a joke. Don't do
that.
I'd be more worried about the bolt
rusting solid to the block over time.
If it were me, and the head gasket had
the same ring around the bolt holes as
it does for the water ports, I would
use some kind of anti-seize paste.
You'll be able to get bolt out much
easier next time. No need for sealer
IF gasket has the anti-leak ring
around the head bolt holes. If water
comes up through the threads with
anti-seize paste, it'll be stopped at
the non-leak ring in the gasket. The
paste will virtually stay put. Still
be there years later for future bolt
removal.
bolt threads. Screw them in before it
sets up. I hope you don't want to take
them back out. LOL.
No, that was just a joke. Don't do
that.
I'd be more worried about the bolt
rusting solid to the block over time.
If it were me, and the head gasket had
the same ring around the bolt holes as
it does for the water ports, I would
use some kind of anti-seize paste.
You'll be able to get bolt out much
easier next time. No need for sealer
IF gasket has the anti-leak ring
around the head bolt holes. If water
comes up through the threads with
anti-seize paste, it'll be stopped at
the non-leak ring in the gasket. The
paste will virtually stay put. Still
be there years later for future bolt
removal.
stevieb49829
Well-known Member
- Location
- Spirit Lake, Idaho
I've used both RTV and non-hardening Permatex. If its the water jacket, RTV works well. If its into any oil or gas, Permatex is best.
Blackhole49
Well-known Member
- Location
- White Lake MI
Why would you use any sealant on a blind hole?
timcasbolt
Well-known Member
ometimes getting many answers is worse than getting none. But, Indian Head Shellac Compound, seriously, that's what it's for.
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