If it does it in neutral,
it's in the gearbox itself.
And it doesn't sound like the
kind of failure that the transmission
will survive for long...
> I was up on thanksgiving helping a fellow roadster roadster owner (Datsundude
> on 311s.org) tune his timing and carbs. He dropped in a 3 main motor and a
> tranny which he replaced some seals on. We found that the car will jump upon
> starting while in neutral. Not violently, just like an automatic tranny
> idling in gear. He bled the clutch and the clutch does disengage when
> depressed as the car does not jump when the clutch is in. He also found that
> the shifter wil not go into 3rd, 4th, or reverse. I'm not sure that it did
> this when the tranny was out of the car.
> Anyone experience this or have any suggestion what to check before he pulls
> the motor and tranny to crack the bellhousing again?
> You can respond directly to him here: