[V8] squealing serp belt oddity

urq urq at pacbell.net
Mon Sep 24 21:19:38 PDT 2007 

TFA indicates the following lengths:

    PT Automatic  - 2460mm
    PT Manual     - 2433mm
    ABH Automatic - 2480mm

HTH!
Steve B
San José, CA (USA)

-----Original Message-----
From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
Ron Wainwright
Sent: Monday, September 24, 2007 1:09 PM
To: Coleman, David
Cc: v8 at audifans.com
Subject: Re: [V8] squealing serp belt oddity

Not sure. They looked the same when I was doing
George's swap. I think I used the 4.2 pully in any
event.

 But find out which pully you have Dave.
& not sure if the 3.6 too 4.2 Auto belts are the
same...but I do know the Manual 3.6 belt is shorter.

 Ron

--- "Coleman, David" <David.Coleman at blackrock.com>
wrote:

> Is there an easy way to tell the pulleys (3.6, 4.2,
> manual, automatic)
> apart?
> 
> I still have a pulley on my old motor; I'll have to
> run out to see if
> it's still torqued down.
> 
> 
> 
> 
> 
> 
> > -----Original Message-----
> > From: Ron Wainwright [mailto:ron_01056 at yahoo.com]
> > Sent: Monday, September 24, 2007 4:00 PM
> > To: Coleman, David
> > Cc: v8 at audifans.com
> > Subject: Re: [V8] squealing serp belt oddity
> > 
> > So if he used the 3.6 pully from you'r old 3.6
> motor
> > than you need the Manual belt.
> > Conti part#, 6K2433.
> > 
> >  Ron
> > 
> > --- "Coleman, David" <David.Coleman at blackrock.com>
> > wrote:
> > 
> > > Alignment double and triple checked.   And every
> > > pulley spins freely.
> > >
> > > Interesting note on the belt size... I believe I
> > > have the right size, as
> > > the first one I got was too big.  I thought that
> was
> > > due to the crank
> > > pulley size difference between 3.6 and 4.2.
> > > Perhaps there's a smaller
> > > one still, the one for the 5-speed?  Does that
> mean
> > > there are three
> > > different belt applications for the V8?
> > >
> > > Regarding the above, by the way, I believe the
> 3.6
> > > crank pulley was used
> > > when Keith swapped the 4.2 motor...
> > >
> > >
> > >
> > >
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Ingo Rautenberg
> > > [mailto:ingo.rautenberg at gmail.com]
> > > > Sent: Monday, September 24, 2007 2:13 PM
> > > > To: Coleman, David
> > > > Cc: v8 at audifans.com
> > > > Subject: Re: [V8] squealing serp belt oddity
> > > >
> > > > IMO there is obviously something that either
> isn't
> > > aligned properly
> > > > (doubt it) or one of your accessories is
> putting a
> > > severe drag
> > > > relative to everything else.  A/C clutch
> going/
> > > compressor seizing?
> > > >
> > > >
> > > > PS:  You DO have the correct size belt, right?
> > > There are two sizes -
> > > > I believe the automatic is bigger and the
> 5-speed
> > > is shorter (forget
> > > > why) -- at least on the 5-speed.
> > > >
> > > > Ingo
> > > >
> > > > On Sep 24, 2007, at 12:51 PM, Coleman, David
> > > wrote:
> > > >
> > > > > SO - My '91 5-speed with 4.2 has been
> enduring a
> > > squealing
> > > serpentine
> > > > > belt for several months.  In a nutshell:
> > > > >
> > > > > *       It started squealing only at idle,
> and
> > > would go away with
> > > > > higher
> > > > > RPMs
> > > > >
> > > > > *       Broke under load, nursed back home,
> > > replaced with new, still
> > > > > squealed
> > > > >
> > > > > *       Replaced the coil spring behind
> t-belt
> > > cover with known good
> > > > > used; squealing stopped for a month or so
> > > > >
> > > > > *       Started squealing again, this time
> more
> > > apparent with higher
> > > > > RPMs; nearly silent at idle.
> > > > >
> > > > > *       Replaced shock absorber / tensioner
> with
> > > factory new;
> > > squeals
> > > > > like a mofo still.
> > > > >
> > > > >
> > > > >
> > > > > The shock tensioner is fully compressed
> (i.e.
> > > can't make the belt
> > > any
> > > > > tighter), yet under load, I can watch from
> > > underneath the belt walk
> > > > > back
> > > > > and forth across the lower idler pulley -
> like
> > > the belt is just
> > > still
> > > > > too loose.
> > > > >
> > > > >
> > > > >
> > > > > Does anyone know if any of the pulleys
> (aside
> > > from the harmonic
> > > > > balancer
> > > > > / crank) are different sizes from 3.6 to
> 4.2?
> > > The 4.2 belt is way
> > > > > too
> > > > > big; the 3.6 belt is the one in question.
> > > > >
> > > > >
> > > > >
> > > > > If no one knows about the pulley sizes,
> perhaps
> > > the Gates number
> > > > > for the
> > > > > next smaller size???
> > > > >
> > > > >
> > > > >
> > > > > Any ideas welcome!
> > > > >
> > > > >
> > > > >
> > > > > -DaveC.  (nice car except it's embarrassing
> to
> > > drive)
> > > > >
> > > > >
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=== message truncated ===



 
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