I have build a electronic distr.use a vw pick up and module on my a14 bakkie.Now i do not have a vacuum advannce anymore.
I want to know where do i set my timing,i have heard that i must set so that at 3000rpm i get 33 degrease advance.
Can anyone help?

With electronic distributor, set the timing exactly as you would with any distributor. Directions: Ignition Timing


I think the 3000rpm advice is for full-throttle drag racing or something.

my old L18 stanza i used to set the timing to 34deg, full advance, but that had a 76 deg cam

try 14 degrees advance at idle, it will also help smooth out the lumpy idle if you have one

Thanks i will try it and let you know

How many variations of distributor advance cams are there?

Hitachi will stamp a "advance number" on the distributor cam. This with the weights and springs will determine how much mechanical advance you have. If there is a "10" on it, means 20 degrees at the crank.
[EDIT: you need to remove the breaker plate to see that advance cam... ]

So if you rev the engine to 3000 rpm. Use a fancy timing light, check to see you have full advance (about 34 degrees) at that rpm. Back at idle it should be around 14, as noted previously.

I'm a long time roadster (R16/U20) and 510 nut, lots of variation over the years on those models. Not that familiar with A series... but same idea applies.

Tom

I set to 14 and at 3000 it advances to 33/34 degrease.
it smoother and goes better
thanks