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Expert
Posts: 1730
   
Location: Michigan | So one of the joys of our 50's engines is the fact that the exhaust manifold bolts go into the water jacket (lower) and oil galley (upper). I have a couple that go into the water jacket that continually leak. What do you guys do to stop these leaks? I have tried the Orange silicone & PFT Paste. Neither have stopped it completely. The PFT paste at least slowed it considerably.
Thoughts appreciated. |
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Board Moderator & Exner Expert 10K+
Posts: 13054
 
Location: Southern Sweden - Sturkö island | I use the "Brown Death" (Permatex) https://www.fastenal.com/web/products/details/0610168 on those and it never failed so far. The surfaces should be clean and dry, least as god as possible. |
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Expert 5K+
Posts: 8947
Location: WHEELING,WV.>>>HOME OF WWVA | http://www.ebay.com/itm/Permatex-82180-Gasket-Sealer-Ultra-Black-R-...
51266337081?hash=item51c91af139&item=351266337081&pt=Motors_Automotive_Tools&var=&vxp=mtr
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Expert 5K+
Posts: 8444
Location: Perth Australia | I used the blue permatex silicone stuff on mine and so far no problems
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Expert
Posts: 1730
Location: Michigan | Thanks for the feedback guys... I will be getting some of the ultra black.. and that permatex looks familiar.. I may have some of it... didn't think to use it though for this. |
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Expert
Posts: 3577
Location: Blythewood, SC | Permatex thread sealant is the only thing I have had success with. ARP makes a thread sealant that I've not tried. If it is as good as their lubricants for torquing head bolts it should be very good. |
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Leaky header bolts
