> Is a TR6 j-type tranmission supposed to have venting, or
> internal pressure?
Well, both actually <G>
> I see now that the
> transmission is
> weeping oil from the seals around the shifting rods
A common problem even without blocked vents. The seals being sold today do
not fit the cavities in the cover snugly. Herman mentioned machining spacers
from brass to fill the gap, but I was able to source some Teflon backing
rings that did the trick for me.
> I think the fellow who rebuilt the transmission and put in
> the nice unit from
> Laycock Rebuilders used 80w90 gear oil. This I have been told
> is a no-no.
Hard to go very wrong with the factory-recommended lubricant!
> Is there a vent hole in the transmission somewhere that might
> be blocked up?
I believe there should be. Not sure where it was on earlier gearboxes, but
by the time the J-type came in, it was on the top cover near the front RH
corner:
http://tinyurl.com/23kmev4
There is even a factory service bulletin about checking that hole, if the
rear seal is leaking.
> Certainly I used to use 20w50 in the a-type and did not have
> this leaking.
A-types have a big vent in the OD body. I don't believe the J-type does,
instead it relies on the gearbox vent.
Randall
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