bell housing oil seal??

[molten]

Just bought a rebuilt j type overdrive on single rail box.
Had to takebell housing off previous single rail box but bell housing oil seal wont go over input shaft as its base diameter is bigger than the no overdrive input shaft!!

Is there another bell housing oil seal that has larger internal diameter?

Thanks

[Nick Jones]

IIRC some of the earlier single rail boxes have a scroll type oil "seal".  Is the one in your bell housing definitely a lip seal?  Either way, you need the seal housing insert to match the input shaft in your bellhousing.  The inserts just knock out so can be swapped

Nick

[molten]

Hi Nick
The insert is the scroll type and would seem narrower Id. The box i now have must be later jtype. I pressume that later ones have bigger id?

[Nick Jones]

I'm not sure, I've only ever had the single rails with proper oil seals, but it seems to fit with what you know.

Bit of an irritation, but the lip seal is the preferable end result IMO.

Nick

[molten]

Got new bell housing centre and seal and they look right. My bell housing is the early 1500 without the 3compression springs recesseses that later 1500 bell housing have. Considering that i am fitting a later j- type, will this give me any probs if i juat fit minus the 3 compression springs between gearbox and bell housing?

Thanks

[Pete Lewis]

the  springs are an anti backlash clatter reducing idea,  My last rebuild used a late case without the springs and
there's no noticeable difference,  thats on a 6pot    a 4 pot may have more vibration backlash noise when  idling

Pete