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BB heads and sealing the exhaust bolts
#378051
07/17/09 11:16 AM
07/17/09 11:16 AM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
OP
master
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OP
master
Joined: May 2004
Posts: 4,920
Joplin, MO USA
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I broke two studs off to where I had to drill and helicoil them. They are the second ones in from the front on both heads.
Hows the best way to seal them up. Stock 915 heads?
Thanks for your time.
Moparlee
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Re: BB heads and sealing the exhaust bolts
[Re: Pacnorthcuda]
#378054
07/21/09 11:31 AM
07/21/09 11:31 AM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
OP
master
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OP
master
Joined: May 2004
Posts: 4,920
Joplin, MO USA
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Well I tried putting some ARP sealant and running the bolt back in.....done this twice to try and seal it. I went ahead and pulled the headers back off and took the helicols out and going to put some keyserts (I'm not sure why they are called that, but I think they are way better that helicols).
Drill a 29/64 hole for the 1/2-13(which is the thin wall kind) to go back to the 3/8-16 bolt. If it isn't one thing it's another.
Moparlee
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Re: BB heads and sealing the exhaust bolts
[Re: Robbins]
#378055
07/21/09 01:18 PM
07/21/09 01:18 PM
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Joined: Jan 2003
Posts: 21,073 Niles , Ohio
therocks
oh wait.but hey.lets see.oh yeah.
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oh wait.but hey.lets see.oh yeah.
Joined: Jan 2003
Posts: 21,073
Niles , Ohio
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Helicoils were made mostly for blind holes.Keyserts are made for open holes.I did heli one hole in my 516.I used the red locktite and then antisieze on the bolt.Never leaked.If you can use a stud it will seal better than bolt.Rocky
Chrysler Firepower
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Re: BB heads and sealing the exhaust bolts
[Re: therocks]
#378056
07/22/09 01:01 AM
07/22/09 01:01 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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The best sealer I have found for the exhaust bolt holes is from Toyota. It is a good high temp sealer. Works way better than any thing mopar came up with that I have seen. I was turned on to it by a transmission shop here. He had a bunch of tubes of the mopar sealer he said I could just have if I wanted. He wouldn't use the stuff any more. Comes in a good sized tube so you have plenty for other applications. part number is 00295-01281 if you are interested.
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Re: BB heads and sealing the exhaust bolts
#378057
07/22/09 01:59 PM
07/22/09 01:59 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
OP
master
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OP
master
Joined: May 2004
Posts: 4,920
Joplin, MO USA
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I'm still not having any luck.
Moparlee
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