Thread: Alternater wiring on 1992 2.5 litre tdi

Hi Guys,
I am new to the fold, been reading the forum for a few weeks now and thought I would draw on the expertise of the posters.

I purchased a 1992 2.5 litre tdi of a mate a few weeks ago, it had broken alternater brackets top and bottom.

I have purchased replacement parts and have installed the Alternater.

My question is, there is 3 wires on the little loom that goes to the alternator, the big thick power 1, a brown 1 with a yellow stripe and a white 1.

The 2 non heavy duty power ones are quite small diameter wire.
I worked out where the main power one went, on the biggest post on the back of the alternator, the other 2 I can not work out.

Looking at the back of the alternator there is 2 posts on the flat (rear of alt)of the alternater and 1 post that makes up part of the outer alt casing. The thick power 1 used the bigger of the 2 on the flat part.

I need to know which goes where.

Once I get this sorted it out I am off to degrease and clean the engine and underneath of the car prior to getting a roady and getting reggo.

Any help with this would be greatly appreciated.

Thanks

Andy (slej)

Originally Posted by justinc

Brown with yellow should be ignition feed,(B+) and the white (actually white and slate colour) is to the 'W' terminal tachometer connection.

JC

Thanks for that JC.
All going and appears to be working now

Andy