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Joined: Oct 2020
Posts: 6
Grease Monkey
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Grease Monkey
Joined: Oct 2020
Posts: 6 |
What is the best thread sealer for head bolts that screw into the water jackets?
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
Posts: 6,149 Likes: 42 |
Here in Aus GMH used a special sealer but Permatex non hardening is just as good, I dont use the little brush supplied but dip the lower 4 or 5 threads into the sealer. Never had any leak afterwards.
Tony
1938 1/2 ton Hope to drive it before I retire
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Joined: Jan 2006
Posts: 7,046 Likes: 107
Hall Monitor ChatMaster - 7,000
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Hall Monitor ChatMaster - 7,000
Joined: Jan 2006
Posts: 7,046 Likes: 107 |
Loctite 1158514 is made specifically for that task. I've not used it but most likely plain old plumber's pipe dope for liquids & chemicals would probably work just as well.
VCCA Member 43216
Save a life, adopt a senior shelter pet.
1938 HB Business Coupe
1953 210 Sedan
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Joined: Sep 2009
Posts: 6,689 Likes: 21
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689 Likes: 21 |
Is it really needed? Charlie 
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
I use Permatex No. 3 or Aviation grade. It lubricates as well as seals. Is it necessary not for some engines but is for others. Why take a chance? Besides the threads need to be lubricated to get the proper torque.
How Sweet the roar of a Chevy four!
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