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Old 01-21-2013, 07:00 AM
awdrev awdrev is offline
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Location: Maryland
Join Date: Dec 2012
Posts: 82
Mein Auto: 2004 BMW X3 3.0 Auto Tran
Time to revive this thread.

Question regarding belt tensioners:

For anyone who has done either a full cooling system overhaul or the OFHG job, how do the belt tensioners work? Specifically, I know they have a little cap and that they are a TORX bit set, but I am wondering how much to tighten them when the job is done? I think that loosening them will be very straight forward but is there a "click" or another way to know when to stop tightening or do I need a Torque Wrench, etc


AHH It seems I finally found the information from an earlier post

Water pump tensioner pulley 8mm 10.9 class = 34Nm using 45 torx socket
Deflection pulley 8mm 8.8 bolt = 24Nm using 45 torx socket

Last edited by awdrev; 01-21-2013 at 07:18 AM.
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