MGB mgb trans oil drip into bellhousing

[eschneider]

while we had an mgb jacked up at the rear for a brake job, we noticed a slight drip from the bellhousing. Reaching a fingerinto the shift fork hole revealed some gear oil dripping from the trans input shaft area.

Just wanted to make absolutely sure this means the seal/gasket at the input shaft has to be replaced, correct? IE, this isn't normal when the trans is overfilled or tipped forward....

 

[DrEntropy]

Should be 30W oil in th' trans, it may be time for a new seal but it means pulling the engine/gearbox as a unit. If it's not dripping while underway I'd put a promise on it for a clutch/PP/T-O in a few months. That's a job fraught with "Might as Wells."

 

[PAUL161]

Should be 30W oil in th' trans, it may be time for a new seal but it means pulling the engine/gearbox as a unit. If it's not dripping while underway I'd put a promise on it for a clutch/PP/T-O in a few months. That's a job fraught with "Might as Wells."

Doc, do you use a straight viscosity oil in the tranny? Easy to get, but I use 20/50. Viscosity is about the same. My front seal leaks a little also. <span style="font-weight: bold">Automatic under belly rust preventive!</span>

 

[tony barnhill]

MGB always specified the same engine oil used in the engine for the trans...I always use 20W50 in both - Castrol prefferably.

& I agree with Doc to just watch things until you have to pull something.

 

[eschneider]

Thanks, as always!

 

[Scott_Hower]

Dont forget to reinstall the infamous "rattle pin".

 

[eschneider]

Dont forget to reinstall the infamous "rattle pin".

And what is that bloody thing for, anyhoo?

 

[Roger]

Dont forget to reinstall the infamous "rattle pin".

And what is that bloody thing for, anyhoo?

It rattles abaht so'se the 'ole won't get bunged up...

 

[DrEntropy]

Ayup!