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Date:         Fri, 22 May 1998 18:45:45 -0700
Reply-To:     "Steven X. Schwenk" <sxs@SCHWENK-LAW.COM>
Sender:       Vanagon Mailing List <Vanagon@vanagon.com>
From:         "Steven X. Schwenk" <sxs@SCHWENK-LAW.COM>
Subject:      Re: Syncro Rumble...Syncro Whine
Comments: To: Lawrence Johnson <ljohnson@halhinet.on.ca>,
          vanagon List <vanagon@vanagon.com>
Content-Type: text/plain; charset=us-ascii

Lawrence:

thanks for the heads up on the VC. I have the front drive-shaft removed. Would the vc still be engaging from left-right differences? I never considered the front differential. It seems to come from behind, but I guess the front diff is just beneath the driver and could feel like it was coming from the back.

I'll keep you posted. steve

Lawrence Johnson wrote:

> Steven, we also have a syncro and went through much the same rumble > trouble. In our case the viscous coupling was engaging prematurely. We > > played with the tire pressure until the rumble was reduced and finally > > eliminated. We now use 43 psi front and 50.5 psi rear with an average > camping load. Hope your problem is as simple to fix. > Larry > '86 Syncro Westfalia in Ontario, Canada > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > <<<I have a syncro rumble...and somewhat of a whine, too...as > previously > > posted. > > The Rumble begins during acceleration at about 2600 rpm and completely > > smooths out and disappears just over 3000 rpm. It is there if i drive > > within that rpm range. It is there when I deaccelerate within that > rpm > range...then tapers off at around 2400. However, there has to be some > > load on the drive train to feel it...and the greater the load on the > drive train, the more intense the rumble until 3100 rpm...and then its > > completely gone. > > Possible candidates: wheel bearings, cv joints, something amiss in the > > transaxle, but what?<snip>>>


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