I'm putting a 1,9l IDI in my 77 westfalia
I searched eBay for "vw diesel alternator" and found this one[/u].Or search your local salvage yard. :wink:
You can't just use any ol' VW diesel alternator to find the "W" terminal... it's got to be off of one that originally had either a factory tachometer or an upshift light. (I think they started putting in the upshift lights in '83 or '84... I know that '84s have the upshift light and therefore the "W" terminal on the alternator.)
The dynamic (ie. twin sensor) oil pressure warning system arrived at the same time as the upshift light, and also takes input from the W terminal..