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How-to: Avoiding crunch when shifting into reverse

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[gti-vr6] Transmission (problem with reverse) Uwe Ross <Uwe.Ross@pobox> Mon, 15 Mar 1999 07:54:07 -0500
[gti-vr6] RE: Transmission (problem with reverse) "Lin, Gary" <Gary.Lin@wang> Mon, 15 Mar 1999 15:13:35 -0500
Re: [gti-vr6] RE: Transmission (problem with reverse) Judson Main <jmain@erols> Mon, 15 Mar 1999 16:27:27 -0500



From gti-vr6-owner@cobra.ccsi Mon Mar 15 06:56 CST 1999
From: Uwe Ross <Uwe.Ross@pobox>
To: VW-A3-2L@onelist
Subject: [gti-vr6] Transmission (problem with reverse)
Date: Mon, 15 Mar 1999 07:54:07 -0500
Cc: GTI-VR6 <gti-vr6@cobra.ccsi>
Organization: http://wso.net/ross/Uwe
 
> Message: 1
>    Date: Sun, 14 Mar 1999 18:34:05 -0500
&gt;    From: Justin Andrus &lt;&#106;andrus&#64;bates<img src=/i/de.gif border=0 width=35 height=15>&gt;
> Subject: Transmission (problem with reverse)
>
> This morning I noticed for the first
> time that in reverse there is a clicking noise.
>
> Message: 2
>    Date: Sun, 14 Mar 1999 18:36:50 EST
&gt;    From: &#86;eeDubGolf&#64;aol<img src=/i/dc.gif border=0 width=35 height=15>
> Subject: Re: Transmission (problem with reverse)
>
> Holy shit i thought i was the only one!!!  The same thing
> happened to my car. The problem is that there is a tooth
> broke off of the reverse gear and it is clicking around
> indise of the Tranny.  It is covered by warranty.  My dealer
> fixed mine and it took them 2 days.

Although it may be covered under warranty, 98% of the time, this problem is
caused by operator error and is totally preventable.    I bet you guys are
used to hearing a grinding/crunching noise when you engage reverse, aren't
you?... :-(

Here's how you prevent that grinding/crunching noise (and prevent
chipping/breaking the teeth on reverse):

1) Always come to a COMPLETE stop before attempting to engage reverse.
2) Once you've stopped, make sure you have the the clutch ALL THE WAY to the
floor.
3) Engage a FORWARD gear; I use 2nd, but any gear will do.  Keep the clutch
DOWN.
4) Engage reverse.  Presto, no grind, no crunch, ever!

Since reverse gear is not synchronized, it is essential to make sure the front
half of the transmission stops spinning before you engage reverse.   Even if
you're at a complete stop with the engine idling and you push the clutch all
the way down, the front half of the tranny still takes considerable time to
stop spinning.  If you don't want to wait, step number 3 will makes uses one
of the forward gear synchronizers stop it for you.

If you continue to get grind/crunch noises when following this procedure, it
means you clutch is not disengaging all the way (dragging) and is spinning up
the front half of the tranny again...

-Uwe-
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From gti-vr6-owner@cobra.ccsi Mon Mar 15 14:23 CST 1999
From: "Lin, Gary" <Gary.Lin@wang>
To: "'gti-vr6@cobra.ccsi'" <>
Subject: [gti-vr6] RE: Transmission (problem with reverse)
Date: Mon, 15 Mar 1999 15:13:35 -0500
Organization: http://wso.net/ross/Uwe
 
In addition, if you're coming to a stop, clutch in but do not shift out of
gear yet.  When stopped, go directly to reverse.  By keeping it in a fwd
gear, stopping the wheels automatically stops the clutch plate and input
shaft, so no reverse crunch can occur.  If you're in neutral, do the below.

> 1) Always come to a COMPLETE stop before attempting to engage reverse.
> 2) Once you've stopped, make sure you have the the clutch ALL THE WAY to
> the floor.
> 3) Engage a FORWARD gear; I use 2nd, but any gear will do.  Keep the
> clutch DOWN.
> 4) Engage reverse.  Presto, no grind, no crunch, ever!
>
Gary Lin
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From gti-vr6-owner@cobra.ccsi Mon Mar 15 15:34 CST 1999
From: Judson Main <jmain@erols>
To: "Lin, Gary" <Gary.Lin@wang>
Subject: Re: [gti-vr6] RE: Transmission (problem with reverse)
Date: Mon, 15 Mar 1999 16:27:27 -0500
 
Boy, you guys make it tough!

Stop.  Neutral.  Clutch in, clutch out, clutch in, reverse.

Same result.

Jud.



"Lin, Gary" wrote:

> In addition, if you're coming to a stop, clutch in but do not shift out of
> gear yet.  When stopped, go directly to reverse.  By keeping it in a fwd
> gear, stopping the wheels automatically stops the clutch plate and input
> shaft, so no reverse crunch can occur.  If you're in neutral, do the below.
>
> > 1) Always come to a COMPLETE stop before attempting to engage reverse.
> > 2) Once you've stopped, make sure you have the the clutch ALL THE WAY to
> > the floor.
> > 3) Engage a FORWARD gear; I use 2nd, but any gear will do.  Keep the
> > clutch DOWN.
> > 4) Engage reverse.  Presto, no grind, no crunch, ever!
> >
> Gary Lin
> --
> For info on: how to subscribe & unsubscribe, the list's tech/how-to
>     library, etc.  see:   http://www.panix.com/~aqn/gti_vr6_list/

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