Bimmerfest - BMW Forums - View Single Post - Replacing exhaust manifold?
View Single Post
Old 11-04-2012, 02:08 PM
Randy Forbes's Avatar
Randy Forbes Randy Forbes is offline
Investigative Tinkerer
Location: SW Florida
Join Date: Apr 2002
Posts: 4,987
Mein Auto: ///Motorized Vehicles
Originally Posted by bob lindquist View Post
Hi Randy,

Hope to have a set of shorty Turner headers soon. Been buying the nuts and stuff ahead of time. The Manifold to head nuts came as 12mm from the dealer not 11mm as you noted in this old post. Think it's possible they changed to 12mm?
As long as the thread size (M7) is the same, theoretically they should work. Test one on a stud poking out ahead of time to be sure...

The only problem as I see it, is that there's a couple of studs that are 99.9% impossible to get the nut on, and a 12mm tool size (vs 11mm) will complicate that. Worst case, you could reuse a couple of the original nuts in those few places that are difficult to access.

Definitely test the nut on a stud though, because I ordered some (for my impending twinscrew installation...) not all that long ago, and they were supplied as 11mm (across the flats).

Terry and Camille's car: I swear on the Bible that it took me over twenty (>20) minutes to get that nut on! Confirmed__picture says thirty (30)!


Randy Forbes
1957 Austin-Healey 100/6 Wine Red
1961 McCulloch R1 go-kart Screaming Yellow
1999///M Rdstr Cosmos Black Eurosport Twinscrew S/C
1999///M Coupe Estoril Blue Eurosport Twinscrew S/C
2001///M Rdstr Steel Gray
2011 X5 35i Sport Deep Sea Blue/Cinnamon
Reply With Quote