Has anyone ever measured their distributor end play? I have a distributor off (as far as I know) a late '60s 230. It has .105" end play. There is no spec for this as far as I can find, however it seems like most people recommend less that .010 for cast housings and roughly .010-.020 for aluminum, due to expansion. I'm gutting my distributor to convert to a Chrysler pickup and reluctor to send a signal to a GM HEI all controlled by Megasquirt 2. While I'm there I'm cleaning everything up and trying to tighten up the loose tolerance. I also noticed there is no thrust washer between the gear and the housing, seems like most all newer vehicles started having them. I ordered shims and a distributor thrust washer, once they come in I'll see if they will work.

So yeah, has anyone measured their end play?