930 distrib vac advance

[930 Guy]

After removing the cap to the distrib, and applying vac. to it, can anyone tell me how much movement in mm I should have on a turbo car. I think my vac advance is sticking. Is there any way to lube it, or free it up with it in the car?

[Jim2]

It's a known problem that the advance/retard plate grease hardens and causes it to stick (really stick!). It was a few years ago that I disassembled mine. I recall there was a trick to removing the plate, but I no longer remember the procedure. Again, do search, or maybe someone will chime in. Very simple to do, just ensure you adjust the timing once reinstalling your distributer.

Jim
79 klunker turbo