UL Power has released a new service bulletin. Calls for checking the torque on bolt holding altinator on. The bulletin is available on UL Power web page. Select your engine type and follow until you get tabs with manuals, specs, and bulletins.  Roughly 206 Ft pounds on the 350i. Left hand threads. Anybody know the size of socket required? Would be nice to know before taking things apart.  It applies to all engines and should be performed at next maintenance.

Was notified of bulletin via email from factory. Thought it was posiqtive customer service.

If you have not complied with prior bulletin on altinator fan replacement, I strongly suggest that you do. My suggestion is based on experience.



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Thanks for the heads up Ralph.  I have a newer 350i (170901) and I have not received any emails from UL but I may be on the bottom of their list to notify.  That being said, I have reviewed the bulletin and it is a straight-forward procedure to check the torque but where are we supposed to get the Alternator tool T063002?  It appears from the pictures at least that you must have this tool to be able to accomplish this check.  I sent note to UL about this and am waiting on reply. 

There may be some confusion in language. The email states compliance at next service however service manual revision 10 list this check at 200hrs of operation time. If anyone has already contacted them for clarification please post the answer. Also, I notified them on the interference issues some of us have had with the oil return line and engine mount  washers and they are checking into it. 

I think the socket size is 30mm

thank you

Jerold, you sound like you have checked yours. Is this correct?  If so, did you use the listed alternator tool?

According to UL Power, the alternator tool T063002 will be available from Wicks Aircraft.  So I guess we will have to buy this tool if we want to check the torque on this bolt unless someone comes up with a better method.


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