Date:         Fri, 14 Dec 2007 16:00:05 -0800
Reply-To:     David Kao <dtkao0205@YAHOO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Kao <dtkao0205@YAHOO.COM>
Subject:      Re: transmission
Comments: To: Dennis Haynes <d23haynes57@HOTMAIL.COM>
In-Reply-To:  <002701c83ea7$89a1c500$0201a8c0@DADSTOSHIBA>
Content-Type: text/plain; charset=iso-8859-1

It is a very worn transmission to begin with. Without knowing how many
miles it had before I used it as a temporary fix. It occasionally made
a grinding noise shifting into the 3rd gear when the tranny was hot.
I was not too surprised when it finally broke down.

Once I swap it out I may want to take it apart just for satisfying my
curiosity about a Vanagon tranny. I have two other cores that I can
submit if I decide to buy a quality rebuilt. I am not sure if I am able
to take it apart though.

David

--- Dennis Haynes <d23haynes57@HOTMAIL.COM> wrote:

> Usually, if the coupling sleeve cracks it is due to a failure deeper in
> the tranny. A bad needle or roller bearing can cause a failure along with
> a worn out gear carrier housing. Anyway, even if it is a broken sleeve,
> not overhauling the tranny will lead to temporary solution.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> David Kao
> Sent: Friday, December 14, 2007 5:58 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: transmission
>
> I should clarify it further.
>
> I now have to start the engine with the clutch pedal depressed (clutch
> disengaged). Everything will be fine (no noise) and I can shift to every
> gear.
>
> But as soon as I gradually release the pedal (begin to engage the clutch)
> the noise begins. This includes that the gear is in neutral.
>
> Scott is probably right that it is input shaft or the tranny's main shaft.
> My guess is in the sleeve that connects the two. The traany's main shaft
> has all the geras, sliding hub, sync rings for the 3rd/4th so it must be
> heavy to turn. If the sleeve is cracked the input shaft will skid and
> make noise from grinding the teeth on the sleeve. It is possible too that
> a shaft is broken off and is hitting everything it touchs when it spins.
> That has been in my nightmares. I like the idea that the sleeve is
> cracked.
>
> My clutch has a long chattering history. I wonder if this can cause the
> sleeve to wear out and crack eventually.
>
> David
>
>
> David
>
> --- Scott Daniel - Shazam <scottdaniel@TURBOVANS.COM> wrote:
>
> > There's a very common misconception, that any noise associated with the
> > clutch pedal is 'throw out bearing.'
> > Yes, if pushing the pedal done causes noise, then you think TOB.
> > But this guy said letting the clutch pedal up in neutral causes noise.
> > That, 'normally' would not be TOB.
> >
> > Try this......idling in neutral, with the clutch up, listen for noise.
> > Then push the pedal down, if it gets quieter, the noise you are hearing
> has
> > to do with the input shaft or main shaft of the transmission.
> > If you really want to hear that bearing noise, press a wooden dowel to
> the
> > shift knob, and the other end to your ear  - the shift linkage often
> does a
> > nice job of bringing  those noises forward.
> > So please -  if clutch down gives noise - you think of TOB
> > If clutch pedal down  equals quiet, you think of transmission main shaft
> > and/ or bearings  usually.
> > There are exceptions to everything of course.
> >
> > There has been confusion about clutch pedals, free play, and throw out
> > bearings forever.
> > But it's really very straight forward.
> > Scott
> > www.turbovans.com
> >
> >
> > -----Original Message-----
> > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of
> > Yves Demers
> > Sent: Friday, December 14, 2007 1:36 PM
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: transmission
> >
> >  nobody went for the throw out bearing, thats where my money is. As for
> > rebuild or used, having just installed a rebuild,
> > the effort to install it isnt something that I would like to do often,
> so I
> > would ( and did ) go for the best (most expensive) option
> > so that another swap hopefully isnt required. P.S. do yourself a favor
> and
> > replace all the bushings and the shifter cup while your at it.
> > Yves
> >
> >
> >
> >
> >
> >
> > I did not mention, my 84 Vanagon broke its transmission last week.
> > > I heard a loud snap from the rear, like breaking an axle and I lost
> > > power to move forward. It was in first gear trying to move into
> another
> > > street on a right turn. I can still shift back and forth to every gear
> > > including reverse. But As soon as I try to let go the clutch pedal I
> > > can hear noise from the transmission. So the transmission is toast.
> > > I have one used cheap spare that I can replace. But once the engine
> > > and the transmission is dropped I have a decision to make between a
> > > real quality rebuild or a cheap one by myself. I do not need to do
> > > anything with the engine if I want to go the cheap route. If I want
> > > a quality one then it's a lot of money and the engine should take
> > > the opportunity to be done as well.
> >
>
>
>
>
> __________________________________________________________________________
> __________
> Never miss a thing.  Make Yahoo your home page.
> http://www.yahoo.com/r/hs
>



      ____________________________________________________________________________________
Looking for last minute shopping deals?
Find them fast with Yahoo! Search.  http://tools.search.yahoo.com/newsearch/category.php?category=shopping