Idler pulley
Thread Starter
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Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
Idler pulley
I have replaced the Idler pulley, first time I just replaced the bearing, 2nd time I replaced the pulley and bearings. Questian is each time I replaced it, the washer that goes with the bolt that holds it on would start to squeak after tighting the bolt. I replaced the washer with one off my parts van, now it is squeaking again. The washer was a cone shape washer, is there something special that I should know about this washer? Or do I need some special washer from Ford?
Postmaster
Joined: Sep 2003
Posts: 4,452
Likes: 1
From: Southern California
Allen,
A lot of times the sqeaking was blamed incorrectly on the idler pulley, in my own experience. Take off the belt and clean all the grooves and flat surfaces of other pulleys with brake cleaner and a brush. Dirt and grimes do collect there and that might be the root cause of the squeals.
A lot of times the sqeaking was blamed incorrectly on the idler pulley, in my own experience. Take off the belt and clean all the grooves and flat surfaces of other pulleys with brake cleaner and a brush. Dirt and grimes do collect there and that might be the root cause of the squeals.
Lead Driver
Joined: Sep 2003
Posts: 7,013
Likes: 205
From: SoCal
I seem to recall a somewhat conical washer; you have to install it with the concave side out, or its edges will scrape the pulley. It is torqued against the center hub of the bearing. This is fuzzy memory, so you should look closely at the washer when you install.
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Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
I think you are right, I will check that when I get home. Thanks
Elder User
Joined: Dec 2006
Posts: 830
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From: Kitchener,Ontario,Canada
Sounds like a "Bellville" washer...... designed to pre-load a bolt & help prevent loosening over time & varying load conditions.
New User
Joined: Mar 2009
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reply
The 2004 ranger I have had the same problem . The bolt was slightly bent
and caused uneven rotation.
The washer is similar and it can become worn allowing it to slip.
The dealer recommended I replace them as a bolt/pulley set each time so no wear is on either part...... It
could be a solution.
and caused uneven rotation.
The washer is similar and it can become worn allowing it to slip.
The dealer recommended I replace them as a bolt/pulley set each time so no wear is on either part...... It
could be a solution.
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Lead Driver
Joined: Oct 2004
Posts: 8,062
Likes: 35
From: Central Oregon
Thanks guys, it turned out to be the tensioner itself. The internals cocked over and the pulley was rubbing on the housing.
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