TR4/4A Gearbox input shaft pilot bush....

[karls59tr]

I think this might have been discussed before but.... is this bushing supposed to be a force fit...that is,it is not supposed to turn and if so is there a way to "stake" it so it dosn't move? I assume a small amount of grease goes in the center of the bush.
Reason I ask is that the PO was running the car with one gearbox rear mount bolt missing and I believe that gearbox movement caused the existing bush to "oval" out.:concern:

 

[Rut]

Pilot bushes are generally made of Oilite bronze and require a 24 hour soak in oil prior to installation. If the bush has ovaled out its probably from lack of lubrication and possibly a misalignment due to the missing gearbox bolt. Bushings can be a very tight fit in the crank, but I've seen several new bushings that just slide in with little effort...they should also rotate on the shaft easily. A little extra grease shouldn't hurt anything as long as you don't use too much. The bushing should not be staked in, IMHO.
Rut

 

[Marvin Gruber]

Agreed, just slide in fit. You might want to check front bearing for wear or fit. Don't think rear mount bolt would give much pressure to oval out bushing.

marv

 

[Geo Hahn]

My original just slid out and the replacement (probably was unnecessary to replace) just slid in.

 

[karls59tr]

Thanks for the info guys.