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General E46 Forum
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Old 10-23-2012, 09:44 PM   #1
PaulSChapman
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Join Date: Dec 2006
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My Ride: 2002 BMW 330 Ci
New rollers don't spin freely?

I just bought a new BMW deflection roller, and a new belt tensioner for my 2002 330Ci. I noticed that the roller wheels do not spin freely; they are actually pretty tight. Is this normal? The current ones on the car spin like a top, so I assume that they will free up after installation? I am replacing my current ones due to noise from at least one of them currently.

Also, does anyone know the torque specs for attaching these? I can't find any reference in the Bentley manual.

Thanks.
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Old 10-23-2012, 09:51 PM   #2
scarede46er
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Yes. If they were loose, that would be a worry.
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Old 10-23-2012, 09:55 PM   #3
Stinger9
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+1 for totally normal

Your current ones are shot; replace all at the same time.

High wear part as they spin at 2X engine speed.
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Old 10-24-2012, 02:16 AM   #4
e4603
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A couple of hours ago I installed 2 new INA mechanical tensioners at 20 lb-ft and the idle pulley at 35 lb-ft.
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Old 10-26-2012, 10:44 AM   #5
PaulSChapman
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Thanks guys - appreciate the help!
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Old 10-26-2012, 10:48 AM   #6
jdstrickland
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Quote:
Originally Posted by PaulSChapman View Post
I just bought a new BMW deflection roller, and a new belt tensioner for my 2002 330Ci. I noticed that the roller wheels do not spin freely; they are actually pretty tight. Is this normal? The current ones on the car spin like a top, so I assume that they will free up after installation? I am replacing my current ones due to noise from at least one of them currently.

Also, does anyone know the torque specs for attaching these? I can't find any reference in the Bentley manual.

Thanks.
They do not spin freely, that's a sign of a new roller. Old rollers spin freely when they are old and need to be replaced. New rollers (pulleys) are tight and smooth and do not spin at all.

Last edited by jdstrickland; 10-26-2012 at 10:58 AM.
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Old 10-26-2012, 10:53 AM   #7
///MPR77
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I believe that the torque value for the mechanical tensioner bolts are 16ft/lbs.

You probably have a hydraulic one...not sure if different spec.
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Last edited by ///MPR77; 10-26-2012 at 10:56 AM.
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