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It's the little things - Exhaust/Intake bolts
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Author:  Eatkinson [ Thu Aug 22, 2013 1:17 pm ]
Post subject:  It's the little things - Exhaust/Intake bolts
I'm talking about the long bolts that hold together the intake/exhaust manifolds with a gasket between them.

I've got two original bolts with threads up the shank that I will most likely re-use with some anti-seize compound.

The third bolt that goes through the middle of the intake and threads into the crotch of the exhaust manifold broke off and I had to have it drilled out.

Now I must replace this bolt and I just realized it must be shorter than the other two - does anyone know it's exact length?

Image
Author:  DusterIdiot [ Thu Aug 22, 2013 1:40 pm ]
Post subject:  It's...
A double ended 3/8" stud that's 3 3/4"-4" long. I had a few replacements made by an apprentice under me that did fastener machining on the side with his Dad.
(Sorry no spares left.) In failing to get a pre-made stud, you can a) buy a long bolt, cut to length and thread the shank as needed, or b) you might procure a 4-5" length of 3/8" all thread and go that route.

-D.Idiot
Author:  Aggressive Ted [ Thu Aug 22, 2013 1:52 pm ]
Post subject: 
I prefer using a stainless steel bolt in that spot. In fact the other two are stainless also, so they don't corrode over time and are easier to remove.

I usually drill out the threads on the two outboard bolt locations on the exhaust manifold so the bolts can easily slide through, then use a washer and nut. It seals well that way. Assembly and diss-assembly go so much faster when switching intake manifolds.
Author:  Eatkinson [ Fri Aug 23, 2013 7:42 pm ]
Post subject: 
Thanks for the suggestions. I managed to find some stainless bolts to use in this spot, so hopefully those combined with some anti-seize will work well.
Author:  olafla [ Sat Aug 24, 2013 4:49 pm ]
Post subject: 
Silver Seal has studs and bolts for SL6 manifolds

http://www.silver-seal.com/category/shop.engine_parts/

http://www.silver-seal.com/product/6403 ... x-188.html

Olaf
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