MSD 6AL missing

[Eljaro]

Still the same problem : up to 3500 rpm when the distribitor reaches maximum advance no problem, from there on the the timing mark starts jumping around between 30 to 40 degrees. Timing is set to 18º initial and 38º max.
I replaced the 6AL box with a new one and still the same problem. I had the cable going from the box to the magnetic pickup in the distributor routed behind the firewall and along the left fender. The wire is also shielded and both shield ends are grounded.
I do not know if it can be the pickup, but I have read that these units either work or don't. Before ordering a new pickup I would like to know if that has caused problems for someone else. I do not know what else can cause this.
Thanks for your help.

[priobe]

Eljaro,

Are you looking at the timing mark to see your problem or are you feeling the problem?

I dont think you will get a misfire from your timing missing. You will feel a surge with the timing moving from 30 to 40.

There might not be anything wrong is you are just looking at the timing mark. MSD 6 al play alot of tricks with timing lights.

I thought I had a problem when I saw my timing move backwards when reving the motor to 3000 rpm, it was the timing light with the MSD module playing tricks

Also, for giggles try this take a piece of wire and replace it with your springs ( basically lock out the dist). Advance the timing to 32 degrees and see what happens. Check and see if your timing is still moving which it should not.

The pickup has nothing to do with the advancement of the timing. check your springs

Your thoughts