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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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yeahmag
post Mar 2 2020, 09:42 PM
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I like the 11mm heads (on 8mm) nuts for exhaust and carb manifolds. I always use a bit of anti seize too.
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jmitro
post Mar 2 2020, 10:32 PM
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ha. less than 2 minutes ago I placed an order for some exhaust manifold nuts/ studs/ time sert repair.

I used this thread for reference, and bought the ACN nuts linked in the thread
http://www.914world.com/bbs2/index.php?act...=2&t=286730
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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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VaccaRabite
post Mar 3 2020, 12:06 PM
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(IMG:style_emoticons/default/agree.gif)
Don't use the common copper colored "exhaust" nuts. Really hard on your head studs.

Do use the thin profile 8mm nuts that can be found at Belmetric and McMaster Carr. If you can find them flanged thats even better.

Zach
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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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mepstein
post Mar 3 2020, 01:38 PM
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something like this works well.


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ctc911ctc
post Mar 3 2020, 02:43 PM
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Has anyone used nuts made of brass like the ones in the picture below????

Just curious, not trying to stir the pot! (IMG:style_emoticons/default/stirthepot.gif)



QUOTE(ctc911ctc @ Mar 2 2020, 09:38 PM) *

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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JamesM
post Mar 3 2020, 11:22 PM
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QUOTE(yeahmag @ Mar 2 2020, 08:42 PM) *

I like the 11mm heads (on 8mm) nuts for exhaust and carb manifolds. I always use a bit of anti seize too.


(IMG:style_emoticons/default/agree.gif)

but i like these 8x10 flanged nuts even better!

http://vwparts.aircooled.net/ACN-Flanged-R...-p/acn-nuts.htm

Really handy to keep your socket from wedging against your exhaust when tightening, especially with headers. Added bonus, the flange keeps the nut from sliding down in your socket before you get it on the stud. I never thought I would get so excited over a nut but I LOVE these things
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rhodyguy
post Mar 4 2020, 09:24 AM
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NICE! I'm going to get sets for the HEs and intakes. Thanks.
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anderssj
post Mar 4 2020, 09:37 AM
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Used the 8x10 flange nuts from air-cooled net when reinstalling my HEs a couple of months ago. REALLY nice pieces.
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StarBear
post Mar 4 2020, 03:54 PM
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This forum is tops - such experience even for a set of nuts! Best source of info.
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ctc911ctc
post Mar 5 2020, 03:32 PM
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It's not the nuts, it's the Nuts talking about nuts!

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QUOTE(StarBear @ Mar 4 2020, 04:54 PM) *

This forum is tops - such experience even for a set of nuts! Best source of info.
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