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Manifold nuts

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bob

05-26-2002 09:07:42




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Should brass nuts be used to hold the manifold on a 1942 farmall h gasoline? Or can just regular nuts be used? I also have a 8n and I know it uses brass nuts on the manifold. Any ideas would be appreciated!!




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mel

05-27-2002 15:38:38




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 Re: manifold nuts in reply to bob, 05-26-2002 09:07:42  
Worked for my H. I don't recall torqueing them to 50 or not but I don't have any leaks.



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Andy Martin

05-27-2002 07:23:33




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 Re: manifold nuts in reply to bob, 05-26-2002 09:07:42  
To make it crystal clear, brass nuts are used to avoid ruining the studs. The brass will not freese to the steel stud as easily as steel nuts, and if they do, the nut threads will strip instead of the stud threads. Then they are easily cleaned with a wire brush.

When I was 16 I took the exhaust pipe off my '50 Chevy and saw the threads "stripped" on the studs. I got on a stud with vise grips and proceeded to ruin the stud as I peeled out the brass threads. When I told my dad what I'd done, he said "well just clean up the threads, the stud is OK" and I had to admit I'd then ruined the stud. We eventually had to pull the manifold to get the stud out.

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bob

05-27-2002 07:36:27




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 Re: Re: manifold nuts in reply to Andy Martin, 05-27-2002 07:23:33  
Thanks for the info but I know the farmall h manifold is suppossed to be torqued to 50ft pounds. Do you think brass nuts could take this much torque?



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mel

05-26-2002 09:15:03




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 Re: manifold nuts in reply to bob, 05-26-2002 09:07:42  
I use tall brass nuts on new studs and I use an anti-sieze compound on the studs in the block. I get the brass nuts at the auto parts store. They are expensive in relative terms but when you have a frozen steel nut that you are ready to break off, they are definetly worth it.



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