Exhaust manifold nuts

[Rusty]

What do people recommended?

Had the copper plated ones and they came loose. What about the aero stainless ones at 5x the price?

[andy10v]

Did they have some kind of interference fit to prevent them coming loose?

I have used this kind



I think this kind were OEM (and they seem to work for long enough)



There are also some that look like normal nuts but the last thread is deformed.

[UrS4boy]

What do people recommended?

OE Items 8 and 9 below (check link for PNs). You need the Item 9 washer (quite thick) AND the OE collared (shouldered) self-locking copper nut, Item 8.

http://audi.7zap.com/en/rdw/audi+100.../2/253-253017/

[saltinot]

I bought the OE nuts from the dealer and found the shoulder to hang over the edge of the washer.....and they hurt my wallet. Bought the aftermarket ones from Würth and was much happier.

[Error404]

I have used stainless Aerotight nuts before and never had any problems. It's funny I have pulled apart a few engines and never seen a washer as shown in the parts diagram.

[SteveH]

I have the washers on my head but I've left them off this time as the new nuts I'm using have a shoulder.

[Rusty]

What's the Hot nut paste pictured (tee hee )

[Colesy]

I received N91130801 when I ordered some EM nuts recently, like Steve's above, I assumed they had superseded the old ones.

[Laaf]

I have the washers on my engine, some thick *******s.
Hot nut paste is expensive stuff, haven't tried it on my nuts yet though.