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> Exhaust Nuts, I must be the one that is nuts!
ctc911ctc
post Mar 2 2020, 08:38 PM
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Took the exhaust system off of the car

------ '74, 2.0L all stock -------

to replace a stud (see my last post on the lost stud) I wanted to get new nuts to go with the new studs so i researched and bought brass nuts advertised by EMPI

The ones I took off are steel with copper thread inserts, I have no experience with either, thoughts?

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IronHillRestorations
post Mar 3 2020, 08:26 AM
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You want a flange nut. They are much stronger than a nut with a washer, as well as easier to use.

You do not want a prevailing torque (locking) fastener as they will make the exhaust studs back out. There are prevailing torque copper coated flange nuts that are used on other German cars (BMW I think) that often get sold for our cars. I've used these as well, after running a tap through them.
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porschetub
post Mar 3 2020, 01:01 PM
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QUOTE(IronHillRestorations @ Mar 4 2020, 03:26 AM) *

You want a flange nut. They are much stronger than a nut with a washer, as well as easier to use.

You do not want a prevailing torque (locking) fastener as they will make the exhaust studs back out. There are prevailing torque copper coated flange nuts that are used on other German cars (BMW I think) that often get sold for our cars. I've used these as well, after running a tap through them.


I used the BMW ones on my 6 motor and on a 4,found them very good and they don't come loose,bought them off Pelican and seem to remember they were cheap enough,good solution.
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