Join Date: Aug 2010
Location: Kansas City, KS, USA
Re: What is the torque for nuts on exhaust studs
The torque on the nuts holding the exhaust to the cylinder head is 22Nm according to my manual. However, it is very unlikely to have oil leaking through the exhaust system. When this happens it is time for expensive engine repairs.
Condensation typically forms inside the exhaust system during warm-up and "short" rides, and sometimes leaks through gaskets. It is usually not observed at the joint to the cylinder head but rather further down the system. The drops are nothing more than dirty water. This is not serious and disappears when the engine is at operating temperature.
However, I am thinking the drops you saw may have some other source. On the LT it will be difficult for condensate to leak through the exhaust gaskets at the cylinder head due to its orientation, also it will be at high temperature very quickly preventing any condensation in that area.
BMW MOA #140995
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