BMW M3 Forum (E90 E92) - View Single Post

Davisca455 · 07-24-2022, 03:20 PM

Quote:

Originally Posted by chutak

Quote:

Originally Posted by Davisca455

I talked with my industrial bearing guy, Dale, at Motion Industries.
He contacted his counterpart on the Automotive side and they think they found the part number for the 65mm pulley that was on my A/C & PS Tensioner. It's listed as a Porsche part though, so....I'll get one, see if it fits and edit the post when it gets here.

*Edit: The 65mm "Porsche" pulley is the correct part for my car, same exact part number.

A/C & PS Tensioner Pulley (65mm OD):
[COLOR="Red"]Global Part #: 5320557100[/COLOR]
https://www.fcpeuro.com/products/clo...or-95510211921

https://www.autohausaz.com/pn/IN-95510211921

Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...er-11287835996

Alternator & Water Pump Tensioner Pulley (70mm OD):
[COLOR="red"]Global Part #: 5320342100[/COLOR]
OEM:
https://www.fcpeuro.com/products/bmw...li-11281440237

OEM:
https://www.autohausaz.com/pn/11281440237

Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...er-11287835996

Excellent post! Just ordered just the tensioner pulleys to replace while I'm in there replacing belts. Pretty substantial savings compared to purchasing each of the tensioner assemblies at $150+ each!

For those who've replaced the tensioner pulleys mentioned, what torque spec did you use for the center bolt? I figure I'd use the same as the idler (deflection) pulley, which is 15nm + 70 degrees turn. Does that sound right?

It's a 10mm coarse thread bolt, so 30ft lbs is what I torqued it to.

Factory install had red thread locker on it, so I cleaned the thread locking compound from threads of the bolt and the threads of the tapped hole, cleaned the bolt and tapped hole with alcohol, added Loctite 271 (red) and torqued to 30ft lbs.