Exhaust nut info
#1
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Exhaust nut info
Does anyone happen to know the specs on the nuts that bolt up the stock catalytic converter on a second gen. I would like to know the pitch and size of the nut. I don't have my tap and die measuring tool right now.
Thanks,
DJ
Thanks,
DJ
#3
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Hmm, I think so... Mazda Part Number 8118-40-355, you can measure the bolt easily with a ruler. I haven't gone out and checked them but you should be able to measure the thread diameter (including threads) and that is your M#, then I believe all M#'s higher than 12 use a pitch of 1.5 as specified in the FSM part TD, last page. That should tell you exactly what you are looking at.
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Oh, one more thing... you can get the Parts Microfiche from Mazdaformance.com for most years of RX-7. I find this EXTREMELY useful, for diagrams as well as for part numbers.
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thecody59
1st Generation Specific (1979-1985)
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08-23-15 06:41 PM