924Board.org

[badenkb]

HI All

First of all, many thanks to all the posters who have offered wlecome advice on getting my project up and running. I now have an engine that starts more or less as requested and with functioning brakes.

Over the weekend - I was trying to get the engine into a reasonable running order and noticed that when I watched the timing mark with a strobe, it had a tendency to wander and not hold steady. What could be the cause of this ? Air leak ? Poor injector performance ?

Electrical circuit is virtually all new (plugs, leads, coil, points (yes its old), cap, arm etc).

Thanks again

Ian

77 924

[wdb]

I've timed a few engines,and I have not seen one stay constant,rock steady, on the mark.maybe its the way the light picks up the signal off the # 1 plug wire,not exactly a solid connection.

[-nick]

mine doesn't deviate more than a couple millimeters (~ +/- 1*). i've seen cars with old worn out distributor bearings that can make the timing vary by a couple of degrees. that is definately too much. it should be farely stationary.

good luck
-nick

[ricomartinez]

Yeah, points and worn out bearings can make it dance a little.

You might consider looking into getting an electronic conversion from Pertronix. If you shop around a little you can probably get it for $50-60. Or maybe less. Check out what it will do at http://www.pertronix.com/

I put one on my 2002 about 8 yrs ago and loved it. Pretty easy to put on really. I got it cheap by crossreferencing the part number. Turns out the 2002, 924, and many VW vehicles all use the same part (#1847 IIRC) since they have similar Bosch distributors. The VW mail order shops out of the magazines are the cheapest for these. Give it a shot. Probably the cheapest way to improve an old points engine.

[ This Message was edited by: ricomartinez on 2002-02-19 05:42 ]

[JvGinPDX]

I hope I am wrong, but could a worn out timing belt cause the timing drift you are seeing? If so, this could give the rest of us an indication of a worn belt.

[numbers]

Did you remember to plug the vacuum advance line?