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Author Topic: What type of nut to use for exhaust clamp?  (Read 1103 times)

Offline belfert

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What type of nut to use for exhaust clamp?
« on: June 20, 2009, 07:44:25 PM »
I discovered today that the nut on the exhaust clamp on the turbo had fallen off.  What type of nut should I replace it with?

I suspect a nylon lock nut would melt.  Should I use an all metal lock nut?  It is fine thread so that may complicate things.
Brian Elfert - 1995 Dina Viaggio 1000 Series 60/B500 - 75% done but usable - Minneapolis, MN

Offline NJT 5573

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Re: What type of nut to use for exhaust clamp?
« Reply #1 on: June 20, 2009, 07:50:02 PM »
Brian,

The best at this piont would probably be to get a couple of fine thread stainless nuts and double nut it. I have fought some of the locking nuts on and off. You will be OK with the double nut deal and you can get them on and off real easy.

Larry
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Offline Ray D

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Re: What type of nut to use for exhaust clamp?
« Reply #2 on: June 20, 2009, 07:56:05 PM »
Exhaust nuts should be brass

Ray D

Offline gus

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Re: What type of nut to use for exhaust clamp?
« Reply #3 on: June 20, 2009, 09:29:27 PM »
Ray,

Brass is good for exhaust manifold studs but for clamps the metal lock nut is much better.

Brass cannot be tightened very much and clamps need a lot of torque compared to studs.

Another alternate is a drilled end clamp bolt and castle nut/cotter pin.
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