Which distributor is this?

[grannyknot]

It came installed on the L28 I purchased, the numbers on the side are,

D6F5-02 7904

22100 N4700

I came with a GM HEI ignition control that the p/o said hit the dreaded 4000 rpm stumble.

Is this a magnetic pick up?

Thanks,

Chris

[Zed Head]

It is a magnetic pickup coil, probably off of a 260Z or a 280Z. Somewhere on this forum there is a spreadsheet of all of the Z(X) distributors from points-style to ZX style, with part numbers for each. The part numbers are in the FSMs also, if you wanted to take guess and open up the Electrical chapter.

Before you get too carried away, take the breaker plate off and see if the ball bearings are still there and free to move.

[grannyknot]

Before you get too carried away, take the breaker plate off and see if the ball bearings are still there and free to move.

I have taken it apart and everything was very clean and in good shape.

So I should be able to connect that magnetic pick up to a MSD 6a unit if I find that the HEI is causing the 4000 rpm stumbling?

Here is that spread sheet, http://www.classiczcars.com/forums/thread34192.html

You have to go to post #19 to see the most current spreadsheet.

So it seems I have a 1978 with static timing of 10*, centerfugal advance of 17*, vacuum adv of 18* and total adv of 45*

Edited December 8, 2012 by grannyknot
adding

[SteveJ]

FYI, it's a 77 or 78 distributor.