170i Exhaust nut torque?

GregsBuddy · Post by **GregsBuddy** » Fri Dec 15, 2017 5:08 pm

Hello,

The subject line says it all. I've scoured the manual and do not see a specific torque for the acorn nuts fastening the exhaust to the engine. There's a general torque spec' for different size bolts, but no specific torque for these nuts.
Lost one of these nuts in the last 3,000 miles, so I want to be certain to torque the exhaust correctly this time. I was considering drilling and wiring the nuts but then it would be more difficult to work on it if I needed to do something on the road requiring the exhaust's removal.
Thanks!

DeeDee · Post by **DeeDee** » Sun Dec 17, 2017 6:12 pm

I don't use a torque wrench on those. I tighten them snug and go about a bit past. Most torque wrenches are fairly long. If a loud noise keeps you from hearing the click, and it's fairly easy to sheer off the stud. If you want to torque them, I believe the spec is 11/ftlbs

Christophers · Post by **Christophers** » Mon Dec 18, 2017 1:06 am

DeeDee wrote:I don't use a torque wrench on those. I tighten them snug and go about a bit past. Most torque wrenches are fairly long. If a loud noise keeps you from hearing the click, and it's fairly easy to sheer off the stud. If you want to torque them, I believe the spec is 11/ftlbs

I agree.