View Single Post
      01-25-2013, 07:01 PM   #2
Adam135
Captain
United_States
19
Rep
911
Posts

 
Drives: 2009 135i
Join Date: Oct 2011
Location: USA

iTrader: (2)

Isn't it difficult to know if a valve is fully seated? We heard about an engine not running right after a valve cleaning, which was likely caused by foreign matter getting into the cylinder. Seems like it would be really easy to do.