Headers keep loosening up - Team Camaro Tech
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post #1 of 8 (permalink) Old May 15th, 09, 10:38 AM Thread Starter
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Bill
 
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Headers keep loosening up

Looking to put headers on my 69 camaro but i've always had trouble with them loosing up, any suggestions on what type of headers to get and gaskets?
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post #2 of 8 (permalink) Old May 15th, 09, 11:05 AM
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Re: Headers keep loosening up

Part of the weekly maintenance. Unless you buy the header bolt locks.

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post #3 of 8 (permalink) Old May 15th, 09, 01:58 PM
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Re: Headers keep loosening up

I used the locktite thread sealer used by plumbers when I had my headers....it was the rear bolts that kept loosening off...the locktight fixed the issue.

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post #4 of 8 (permalink) Old May 15th, 09, 02:04 PM
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Re: Headers keep loosening up

Get a package of these high collar header bolt washers and only tighten the bolts until the washer flattens out, don't over tighten... Best $3 - $4 you'll even spend...


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post #5 of 8 (permalink) Old May 15th, 09, 03:01 PM
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Re: Headers keep loosening up

It's common to have to snug up the bolts the first several times the headers are heat cycled. My Thorleys came with some star washers - thought that was a bit odd. Time will tell if they hold up. IMHO, anti-sieze with a mechanical locker (washers or specialized locking hardware) is better. Steel and aluminum are fickle enough - I'd be afraid to use loc-tite.

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post #6 of 8 (permalink) Old May 15th, 09, 05:26 PM
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Re: Headers keep loosening up

Check the depth of threads in the head. If you tap them to the bottom you can sometimes get a longer bolt in there. I went from 3/4 to 1 inch long bolts by bottom tapping. The extra threads seem to help hold better. I used Permatex teflon thread sealer on the threads and Fel-Pro 1404 gaskets. 3 years and tick free.
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post #7 of 8 (permalink) Old May 15th, 09, 07:09 PM
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Re: Headers keep loosening up

I put Stage 8 locking header bolts on my last car. No matter what I tried, they'd always loosen up (and a couple were really hard to get to).

They are a bit of a PITA to get on, but the bolts won't ever back out again on you.

Summit and other places sell them.

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post #8 of 8 (permalink) Old May 15th, 09, 07:15 PM
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Re: Headers keep loosening up

I also used locking bolts, along with Earls carbon fiber gaskets.
The bolts are sold by Ford, summit has em, 1" long, combo hex and allen head, with a locking ring held on by an e clip. You get 2 spares, kinda nice.

The gaskets haven't burned and the bolts can't come loose ever.

And yes, stainless bolts into alluminum heads = use anti sieze





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