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> Exhaust stud, coming loose
76-914
post Jun 10 2011, 02:44 PM
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This timely for me as I will be bolting up my ex system in a few weeks. I bolt those new copper clad nuts (IMG:style_emoticons/default/sad.gif) , should I just use grade 8 nuts and flat washers? Sorry for the HiJack, Elliot.
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HAM Inc
post Jun 10 2011, 02:55 PM
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Pretty much any 8x1.25 nut will do. Any sort of clinch nut is not the way to go IMO.
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Scott S
post Jun 10 2011, 02:58 PM
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I am about two weeks out from doing this as well.I just bought a set of the coppers - at least they were cheap.

Capn/Ham - just loads of copper anti sieze, a flat washer and a 8x1.25?

Thanks!
(IMG:style_emoticons/default/beerchug.gif)
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Dave_Darling
post Jun 10 2011, 07:11 PM
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The stock nuts have a slice in the side; they are indeed self-locking. Perhaps not as much as the squashed nuts that are the popular replacement, but they are self-locking. They also have a flare on one end that acts as a built-in washer.

--DD
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majkos
post Jun 11 2011, 07:59 AM
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and all these years I was worried about nothing.

Many moons ago, when installing my Kerry/Hunter header system
with "shorties" "Stubby" exhaust
The headers pipes were a bit big, I couldn't use a nut,
short but quick fix, (I really wanted to hear these headers!)
I used one of my CV bolts,(six side)
used a couple washers,snug it in

I've kept an eye on 'em only time I had to re tight them
was after the first time and the exhaust copper washer settle in.

They stayed in since.
The best part, real easy to reach with allen head socket
no open end wrench
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rick 918-S
post Jun 11 2011, 08:22 AM
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When I had the heads done on a core engine I have I noticed there were 9mm stud holes in the heads. A few of the studs were missing when I got the engine. I found some 8 X9 studs here. http://www.bus-boys.com/heads.html#hardware

My only precaution. They are not straight, Very poor quality. When you lay them on the bench and roll them they wobble. It's hard to get these started and aligned.

I think Chris Foley sells these too. I think I spotted them or someone posted that he does after I bought the ones from the Bus Boys.
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Elliot Cannon
post Jun 11 2011, 06:11 PM
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QUOTE(76-914 @ Jun 10 2011, 01:44 PM) *

This timely for me as I will be bolting up my ex system in a few weeks. I bolt those new copper clad nuts (IMG:style_emoticons/default/sad.gif) , should I just use grade 8 nuts and flat washers? Sorry for the HiJack, Elliot.

I don't mind the hijack. Especially when it includes good information. Wait till I find the bastid that sold me those copper plated nuts. Why I aughta'... Anyway, it's a good thread if I can learn something form it and I have learned lots from this one.
Cheers, Elliot
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