[DeTomaso] Techno question: a fine mess

marshall smith marshallgsmith at sbcglobal.net
Wed Oct 7 16:46:52 EDT 2015


Rub some paraffin (wax) on the belt. You know instantly it that's making the noise.
--------------------------------------------
On Wed, 10/7/15, Mike Drew via DeTomaso <detomaso at poca.com> wrote:

 Subject: Re: [DeTomaso] Techno question: a fine mess
 To: cengles at cox.net
 Cc: detomaso at poca.com
 Date: Wednesday, October 7, 2015, 11:05 AM
 
    In a message dated
 10/7/15 6 01 58, hoppe1 at cox.net
 writes:
 
      >       
          I installed the back
 up stock alternator.   I
      tested the
      >    engine at idle
 and I am crushed that the noise is still there.
      >    So....the noise
 is from one of the belts or from the idler
      pulley.
 
    >>>Right.  You'd be amazed
 at how noisy a perfectly good-looking belt
    can be.
    Belts are cheap and consumable; those
 living in an enclosed engine bay
    like the Pantera's don't benefit from
 airflow as they do in a
    front-engined car, so probably have a
 shorter effective lifespan.  You
    rarely get access to the front of the
 engine, so now is probably a good
    time to change them anyway.
    The idler pulley bearing can make one hell
 of a racket.  You can buy a
    replacement bearing, then press (or have a
 machine shop press) the old
    bearing out and the new bearing in. 
 But the bearing is expensive, and
    labor adds further to the cost.
    Your local NAPA auto parts store has a
 replacement pulley with bearing,
    ready to bolt on, that costs less than the
 cost of just a replacement
    bearing for your old pulley.  It is
 slightly larger in outside
    diameter, but otherwise functions
 identically and allows the use of the
    same-size belt.
    Part number is Duralast 231036.  Cost
 is about $13-15 if memory serves,
    while just a replacement bearing for your
 old pulley is more like $25,
    and you haven't started paying machine
 shop costs.
    Changing the belts first will determine if
 you need the pulley.  If you
    don't, just return it.  And if you
 do, have it in your hands and
    install that next.
    There, you fixed it. :>)
    Mike
 
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