‘83 SC distributor partial rebuild

[REVerend]

Going through my distributor the bushings seem nice and tight with no play, but there is a bit of up/down play which I’m trying to resolve.

When i disassembled in initially for cleaning a few months ago there were what appeared to be the remains of a fiber washer spread around underneath the mechanical advance. Now that I have it more fully apart I’m guessing there was once a fiber washer/spacer between the two stainless washers at the top end of the shaft.

[REVerend]

In the rebuild kit I got from parts klassic there aren’t any fiber shims but there is a bronze washer/shim that I’m guessing is supposed to go at the top end something like this?

[REVerend]

From the wear mark on the gear it looks like it’s sitting very slightly low which would make the slightly thicker bronze washer/shim up top make sense. It would cause the gear to ride slightly higher



That was also what was indicated in this thread from a decade plus back…

https://forums.pelicanparts.com/porsche-911-technical-forum/755343-83-sc-ignition-distributor-bushing-replacement.html

[stevie 77 930]

Perhaps this may help...
Look at this thread from a while back, it has the axle play and shim sequence in the Tech Bulletin

Distributor Rebuild on a SC, need some advice

[REVerend]

Originally Posted by stevie 77 930

Perhaps this may help...
Look at this thread from a while back, it has the axle play and shim sequence in the Tech Bulletin

Distributor Rebuild on a SC, need some advice

Thanks… that does help and I hadn’t run across that thread before.

The only thing that seems to make sense at this point is using the bronze shim/washer up at the top of the shaft and then using however many shims down on the bottom to make the play within the guidance of that tech bulletin. I had hoped that the kit would have a new fiber shim to replace the one on the bottom end. I’m gonna stop by my local auto parts store this evening and see if there are any options.

[REVerend]

This thread seems to have the answers I’m looking for…

https://forums.pelicanparts.com/porsche-911-technical-forum/859923-distributor-tune-up-repair-2.html

The only remaining task is to try and locate a fresh fiber shim for the bottom end. I could reuse the old one, it seems to be in good shape but would kinda like a new one.

[HaroldMHedge]

At the end of the TSB I listed 1 237 010 007 as the Bosch number. Pelican shows it as NLA. I just checked and still find kits online.

[REVerend]

Originally Posted by HaroldMHedge

At the end of the TSB I listed 1 237 010 007 as the Bosch number. Pelican shows it as NLA. I just checked and still find kits online.

Might have to hunt one of those down, thanks