What heat resistant fasteners to use(turbo related) - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 10-11-2002, 07:42 PM   #1 (permalink)
 
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What heat resistant fasteners to use(turbo related)

I pulled my header off and turbo to have them surfaced...When I put it back together I used Grade 8 (the goldish colored ones) bolts and those high heat 'castle' like lock nuts if you know what I mean. I drove for about 10 minutes before I heard super exhaust leaks, which turned out to be the bolts had all let go, snapped right in half! Prior to the grade 8 bolts I used Socket Head Cap Screws (black in color) should I go back to black socket head cap screws?

any other suggestions on high heat resistant fasteners???

Thanks
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Old 10-11-2002, 08:46 PM   #2 (permalink)
 
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i think stainless fasteners are the go on exhausts.
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Old 10-11-2002, 09:03 PM   #3 (permalink)
Pat
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use the stock toyota ones and don't over tighten them.. they are breaking because they where too tight more then likely.. I buy the one from toyota everytime I need them and also if there is any ? on the htead threads helicoil them.. I also always use the toyot locking nuts.. this is your best bet
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Old 10-12-2002, 03:16 AM   #4 (permalink)
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Originally posted by coiledbj42
i think stainless fasteners are the go on exhausts.
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Old 10-12-2002, 07:45 PM   #5 (permalink)
 
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WTF does that mean?? Stainless or not?
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Old 10-12-2002, 11:02 PM   #6 (permalink)
 
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stainless
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Old 10-12-2002, 11:12 PM   #7 (permalink)
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the key is to not use Cad plated fasteners
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