Date:         Sat, 1 Mar 2003 22:42:32 -0500
Reply-To:     Dennis Haynes <dhaynes@OPTONLINE.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <dhaynes@OPTONLINE.NET>
Subject:      Re: AT Governor and fluid exchange with final drive
Comments: To: Edward Maglott <emaglott@BUNCOMBE.MAIN.NC.US>
In-Reply-To:  <5.2.0.9.0.20030301211214.027d9280@buncombe.main.nc.us>
Content-type: text/plain; charset=us-ascii

Those two weights are the working part of the governor. It is rotated by
the final drive so its speed is proportional to the speed of the
vehicle. The large weight controls the 1st to 2nd shift. The small
weight controls the 2nd to 3rd shift. The only variable part is the
position of the throttle. After full throttle, (you'll feel the step in
the pedal), the shift points are raised for max acceleration/hill
climbing. The raised shift points are close to redline (~5200 rpm).

The seals between the two sections require disassembly the transmission
from the transaxle to replace. If you look carefully in behind the ATF
oil pan, you will see a small hole in the differential housing. This
hole leads to a space between the two seals. If there is no leakage
here, than it is unlikely the seal are leaj=king unless thay are the
wrong type and also installed wrong.

Dennis



-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf
Of Edward Maglott
Sent: Saturday, March 01, 2003 9:54 PM
To: vanagon@GERRY.VANAGON.COM
Subject: AT Governor and fluid exchange with final drive

I'm working on my 86 AT.  I looked at the governor, and was surprised by
its small size and simplicity.  How does this thing work?  It looks like
the only moving parts are the weights which simply operate a couple of
check ball looking valves.  I expected something that would provide
variable input to the trans about output shaft speed, and I can't see
how
this gadget would do that.

The other question I have is about the seals I need to replace that
cause
the ATF and final drive gear oil to mix when they fail.  Where are they?
Edward