Re: [T3] VR/Gen trouble...

[Jim Adney <jadney@vwtype3.org>]

On 21 Dec 2002 at 23:14, Brian wrote:

> Well, after a 4 hour tour on the Squareback electrical, I know I am in 
> trouble!  Spliced wires that lead to nowhere, jumbled mess under the 
> dash and a generator that seems to spec at no voltage, yet passed the 
> turn it into a motor test...   Anyone want to rewire a car for me? 

I'm concerned that you're getting sidetracked. There are VERY few wires that 
are important to the generator operation. I think this list contains ALL of 
them:

the first 4 are necessary:

heavy wire from D+ terminal on the generator to the D+ terminal on the VR

light wire from DF terminal on the generator to the DF terminal on the VR.

heavy wire from the B+ wire on the VR to the battery + terminal

battery ground strap

These last 2 are good ideas, but not absolutely necessary for generator 
operation:

transmission ground strap (sort of, really much more important for the starter 
than for the generator since there are alternate adequate grounds for the 
generator.)

Brown ground wire (69-on only) from generator body to VR body (optional, the 
system will work without this wire if the other grounds are intact.) If your VR 
has been moved then you need to make sure that the VR body is well grounded. 
bolts to the body are usually adequate, but if yours is mounted on fiberglass 
or wood they you'll want to add a ground wire.

 
Remember, the clutch cable, throttle cable, heater cables, & heater tubes all 
provide alternate grounds for the engine/transmission. These are usually enough 
for the generator (30A) but not for the starter (100+A.)

-- 
*******************************
Jim Adney, jadney@vwtype3.org
Madison, Wisconsin, USA
*******************************


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