89 Audi 90 stumbling

[Huw Powell]

On 7/4/2010 12:50 PM, Mark Rutherford wrote:
> Checked the hall sender plug, looked good.  Decided to change the
> distributor to see if it produced a change in behavior.  Pulled the one from
> my parts car and found one of the wires had broken off the plug.  I then
> decided to change the pick up in the distributor.  Pulled the shaft on the
> old one, put the new one in the press and removed it.  In my haste I did not
> get a reference mark between the windowed disk and the shaft.  Anyone have a
> picture of a NG distributor, or is there a mark I can not see.  I also have
> several MC distributors on hand.  Are these interchangeable?

There should be a TDC mark on the upper outside edge of the housing, 
visible with cap off.  Rotor should point at it when camshaft is at TDC 
(crank might get you off 180).  Then fine tune with timing light.

The crude version is that the rotor should point at the #1 spark wire at 
TDC.

The MC is a one-window set up versus five, so, no compatibility.

And as I said in other mail, try unplugging the knock sensor.

-- 
Huw Powell

http://www.humanspeakers.com/audi

http://www.humanthoughts.org/