Date: Mon, 9 Jun 2003 01:13:44 -0400
Reply-To: "Carrington, Tom" <TCarrington@RELITECH.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "Carrington, Tom" <TCarrington@RELITECH.COM>
Subject: Re: question regarding clutch bearings and shifting problems
Content-Type: text/plain
Hi David,
The input shaft *is* relatively easy to replace one the tranny is out. The
real PITA is pulling the transmission!
Here's what's entailed in pulling the trans. Oh, and pay attention to the
part of the article about the pilot bearing.
http://volksweb.relitech.com/clutch.htm
And to replace the input shaft, have a look at:
http://volksweb.relitech.com/vanagon2.htm
Take care,
TomC
TomC
tcarrington@relitech.com
http://volksweb.relitech.com
http://checkerweb.relitech.com
85 VW Vanagon Crew Cab
82 VW Westy Diesel=>Gas Conversion
81 Checker A-11 (Taxi)
65 VW Notchback
> -----Original Message-----
> From: David Most [SMTP:mostd@JUNO.COM]
> Sent: Sunday, June 08, 2003 11:29 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: question regarding clutch bearings and shifting problems
>
> If only we all had vanagon owner's manuals with such explanations....
>
> In a prior e-mail, you mentioned the following:
> "If the pilot shaft bearing chewed up
> the tranny input shaft add still more time and money."
>
> Can you explain how a siezed pilot bearing causes the tranny input shaft
> to be chewed up? What is the likelihood of this happening?
>
> I was told once that if a tranny is on the bench, it's "easy" to replace
> the input shaft. What is a ballpark price for an input shaft, and how
> much time should it take to replace?
>
> Thank you for your excellent and generous contributions.
>
> David
>
> On Sun, 08 Jun 2003 16:14:09 -0700 mark drillock <drillock@earthlink.net>
> writes:
> > Yes. The main purpose of the bearing is to allow the engine to turn
> > at a
> > different speed that the tranny input shaft. If the bearing is
> > seized
> > the tranny shaft will turn whenever the crankshaft is turning. Since
> > both shafts turn together anyway when you are in neutral with the
> > clutch
> > pedal released the suspect pilot bearing is not needed at that time.
> > It
> > is also not needed when in gear and the vehicle is moving with the
> > clutch pedal released. It's main use is when the vehicle is stopped
> > in
> > gear and the engine is running. That is what wears it out. Some
> > people
> > sit at stop lights with the clutch pedal down and the tranny in
> > gear.
> > Doing that forces this bearing to work that whole time and shortens
> > it's
> > life. It also does some work when you are shifting gears and have
> > the
> > clutch pedal down and if you make it a habit to coast in gear while
> > holding the clutch down that will also require the bearing to do
> > work.
> >
> > The pilot bearing is a little tiny needle bearing. It gets no
> > lubrication it's whole life other than what it is given by the
> > mechanic
> > who puts it in. When you idle at a light with the tranny still in
> > gear
> > this poor bearing spins at 1000 rpm the whole time. It is amazing
> > that
> > they last as long as they do when driven properly but holding down
> > the
> > clutch while idling wears them out. They usually make noise long
> > before
> > they get so bad as to completely seize.
> >
> > Mark
> >
> >
> > David Most wrote:
> > >
> > > If the pilot bearing is seized, would I still be able to start the
> > engine
> > > with the gear shift in neutral and just let it idle?
> > >
> > >
> >
>
>
> ________________________________________________________________
> The best thing to hit the internet in years - Juno SpeedBand!
> Surf the web up to FIVE TIMES FASTER!
> Only $14.95/ month - visit www.juno.com to sign up today!
| 
