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kerian159
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Joined: February 24, 2008
Posts: 344
Location: Pensacola, FL
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 Posted: Sat Mar 05, 2011 6:58 pm Post subject: Auto-Stick Transmisson Question |
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I replaced my wife's auto-stick transmission with one from another car this morning. While I was getting all of the wiring hooked back up I noticed that the original transmission had on the passenger side two hookups for switches/relays and the new one only had one. The connectors are a two-prong (which went on the new tranny) and a three prong that had no where to plug in. My question is does anybody have any idea of what that extra plug goes to or what it is and if there is a wiring diagram out for the auto-stick electric parts. Any help will be appreciated. 
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1976 Type II Westy P22
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Rob Timmons
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Joined: June 25, 2005
Posts: 648
Location: Peru NY
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| Posted: Sat Mar 05, 2011 10:26 pm Post subject: |
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| If I remember right it was a temperature sending unit. You might get more info at vwar.org for an auto stick diagram. Bentley does have one for only 70 and that would be a newer year one you need. |
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kerian159
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Joined: February 24, 2008
Posts: 344
Location: Pensacola, FL
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| Posted: Sun Mar 06, 2011 11:29 am Post subject: |
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Thanks Rob,
Indeed I believe you are correct. After looking through the Bently a few more times i noticed a note on page 7 of the Auto-Stick section that says:
The following modifications have been made in replacement parts for the warning circuit: The switch for the temperature range 257 to 275 degrees F and the control switch have been eliminated. In the modified system the switch for the temperature range 284 to 302 degrees F operates the red light in the speedometer, and the light stays on until the ATF fluid has cooled. Previously, the light went off as soon as the driver downshifted. Replacement of the converter housing, shift rods or transmission case now calls for conversion of the temperature warning device to the modified system. A longer cable is required to connect the warning light with the 284 to 302 degrees F temperature switch directly. The existing holes for the temperature and control switches of the earlier system must be sealed with plugs and washers.
This leads me to wonder apparently they got rid of the three-prong switch and went only with the two-prong but do I need to re-wire the whole system with a "Longer cable" now. If anybody has done this or known of someone that has please let me know.
Jay
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1976 Type II Westy P22
"Growing older, but not up!" |
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volkenstein
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Joined: June 26, 2005
Posts: 858
Location: The Land of Oz
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| Posted: Sun Mar 06, 2011 7:31 pm Post subject: |
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Kerian,
They dropped it. Sound like you had an early trans, and replaced it with a late one.
I'd run a wire from the high temp unit you've got to the input side of that
3 prong switch.
Messy, but fabricating a new sub-harness would be messier. Or...you can try one of vwar guys, IIRC he may be making the sub-harnesses.
That three prong switch reacts to the shift rod and switches voltage from one temp switch to the other.
Regards
Sean
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