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 |
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.