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Author Topic: not another W terminal question  (Read 4189 times)

December 08, 2009, 07:37:39 am

TOW'D

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not another W terminal question
« on: December 08, 2009, 07:37:39 am »
Howdy Gang,
 The "W" terminal on our 1985 Golf diesel alternator is hooked up , but we don't have a tach.
I'm not happy with the volts our volt meter is showing- <10v with the heater fan on high 13v with it off
any suggestions?
thanks
hank
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Reply #1December 08, 2009, 08:51:52 am

Peter

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Re: not another W terminal question
« Reply #1 on: December 08, 2009, 08:51:52 am »
Quote from: TOW'D on December 08, 2009, 07:37:39 am
Howdy Gang,
 The "W" terminal on our 1985 Golf diesel alternator is hooked up , but we don't have a tach.
I'm not happy with the volts our volt meter is showing- <10v with the heater fan on high 13v with it off
any suggestions?
thanks
hank
...  http://www.vwdiesel.net/forum/index.php?topic=20351.msg155409#msg155409
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Reply #2December 10, 2009, 08:55:57 am

TOW'D

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Re: not another W terminal question
« Reply #2 on: December 10, 2009, 08:55:57 am »
Does the "W" terminal do anything other than supply a signal for the tach?
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Reply #3December 10, 2009, 10:36:31 am

macka

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Re: not another W terminal question
« Reply #3 on: December 10, 2009, 10:36:31 am »
Quote from: TOW'D on December 10, 2009, 08:55:57 am
Does the "W" terminal do anything other than supply a signal for the tach?


IIRC its the power for the "dummy lights" when you have a gasser
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Reply #4December 10, 2009, 10:37:00 am

Vincent Waldon

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Re: not another W terminal question
« Reply #4 on: December 10, 2009, 10:37:00 am »
Quote from: TOW'D on December 10, 2009, 08:55:57 am
Does the "W" terminal do anything other than supply a signal for the tach?


It also relays engine speed to the dynamic oil pressure warning system.
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Vince

Edmonton, Alberta, Canada
2001 silver TDI Jetta Malone Stage 1.5 , 2001 blue TDI Jetta SBIII 216s Malone Stage 3, 1970 Bay Window bus

Gone but not forgotten: 1969/1971 Beetles, 1969/1974 Westies, 1979 Rabbit, 1986 TD Jetta, 1992 gas Jetta, 1994 TD Jetta
Reply #5December 10, 2009, 04:20:43 pm

TOW'D

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Re: not another W terminal question
« Reply #5 on: December 10, 2009, 04:20:43 pm »
Thanks guys,
 I've replaced the dynamic oil pressure warning system with a gauge reading the pressure at the head.
So that W wire isn't needed
thanks
hank
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