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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 08-11-2008, 08:53 AM   #1
jjp201
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Join Date: Aug 2005
Location: ct
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Replacing Hydraulic A/C Tensioner Pulley

How do you R&R the Hydraulic A/C tensioner pulley. I got the part (#11281748131) from the dealer and went to replace but couldn't get the old one off. After removing the dust-cap, I wrenched on the nut with a torx bit. When I turn it clock-wise it loosens the tension but should I turn it counter-clockwise to remove it?
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Old 08-11-2008, 11:24 AM   #2
hummer
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It's an allen wrench head and yes turn it CCW.
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Old 08-11-2008, 01:00 PM   #3
ssm1991
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There's no hydraulic tensioner for the A/C belt. Were you talking about the tensioner pulley for the engine belt (for water pump, alternator, power steering pump)? Others just call it the serpentine belt. The part number you mentioned is the pulley for the hydraulic tensioner of the engine belt. Yes, it gets confusing at times ...

If you were trying to service the tensioner pulley for the A/C belt, then you'll have to replace the whole tensioner. There's no replacement just for the pulley.

And yes, CCW using AFAIK Torx T-45 or T-50, not an allen wrench.
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