Date:         Mon, 1 Dec 1997 19:33:46 -0800
Reply-To:     "David Marshall (Vanagon Mailing List)" <vanagon@VOLKSWAGEN.ORG>
Sender:       Vanagon mailing list <Vanagon@Gerry.SDSC.EDU>
From:         "David Marshall (Vanagon Mailing List)" <vanagon@VOLKSWAGEN.ORG>
Subject:      Re: Syncro Acceleration Vibration problem
Comments: To: Dennis Haynes <dhaynes57@email.msn.com>
In-Reply-To:  <0c03944200302c7UPIMSSMTPUSR03@email.msn.com>
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At 20:46 12/1/97 -0500, Dennis Haynes wrote:
>You probably have a bad CV joint somewhere.  The first time I came across
>this it drove me crazy.  Syncro's do not always give the typical thunking
>noises when the joints go bad.

Did it occur in all gears?  I took my Double Cab up Dragon Mountain last
night where it was +2C at the bottom and -4C at the top.  This gave a good
test of mud, fresh ice, ice, snow and fresh snow in a 15 minute period.
Going up was mainly in 1st and 2nd gears.  The noise was present many times
and only occured on the way up the mountain and when I was using the upper
RPM range when under load.  The noise immediatly went away if I took my
foot off the gas.  Going down the mountain where the engine slowed the
Truck down didn't cause any noise at all.  Once at the bottom the noise was
back even in third gear as I left an intersection.

The VC does work... quite well actually, as I went up a 45 deg back in 10cm
of snow on an ice covered road making "rooster tails" with the front wheels
too!

Very puzzeled with a hidden bee's nest somewhere in my Double Cab!


>Dennis
>-----Original Message-----
>From: David Marshall (Vanagon Mailing List) <vanagon@VOLKSWAGEN.ORG>
>To: Vanagon@GERRY.SDSC.EDU <Vanagon@GERRY.SDSC.EDU>
>Date: Saturday, November 29, 1997 8:30 PM
>Subject: Syncro Acceleration Vibration problem
>
>
>>Over the past few months I have noticed a vibration under heavy(ish)
>>acceration or load in my Syncro Double Cab.  The noise seems to be coming
>>from somewhere below me when I am going up a steep hill where I have to
>>gear down in to third to maintain any sort of speed.  If I ease off of the
>>accerator the noise goes away.  This same vibration also occurs when I
>>accerate quickly from a stop in all gears.  It is always the same RPM range
>>that it occurs.  I assume somewhere between 2000 and 3500 (no tach I can't
>>tell exactly).
>>
>>I put castrol 70w90 synthetic gear oil in both the front and rear boxes
>>this helped shifting but there is still the same vibration (still a little
>>occasional grinding in 1st to 2nd).  Other things that I checked were tire
>>pressure and ballance and loose trim pieces.... still no luck  :(
>>
>>Any idea what the problem is?
>>
>>Thanks in advance!
>>
>>
>>-- David Marshall        Email: david@volkswagen.org --
>>-- 80 VW 2.0L Caddy,            87 Audi 5000 quattro --
>>-- 85 VW Cabrio, 88 VW Double Cab Syncro Transporter --
>>-- Volkswagen Homepage http://www.volkswagen.org     --
>>-- VW Caddy Homepage http://www.volkswagen.org/caddy --
>>--         ***SENT VIA VANAGON MAILING LIST***       --
>>
>
>
>
>
>
>

-- David Marshall        Email: david@volkswagen.org --
-- 80 VW 2.0L Caddy,            87 Audi 5000 quattro --
-- 85 VW Cabrio, 88 VW Double Cab Syncro Transporter --
-- Volkswagen Homepage http://www.volkswagen.org     --
-- VW Caddy Homepage http://www.volkswagen.org/caddy --
--         ***SENT VIA VANAGON MAILING LIST***       --