Gearbox tail shaft seal removal

[JasonJ]

Gents,

Has anyone removed a tail shaft seal through the inspection hatch? After putting in a welch plug there is still a leak although smaller.

Any feedback would be appreciated.

Regards
Jason

[promotor]

Gents,

Has anyone removed a tail shaft seal through the inspection hatch? After putting in a welch plug there is still a leak although smaller.

Any feedback would be appreciated.

Regards
Jason

I've never done one in-situ but I can say they're a pain to get out even when they're on the bench. The best way in my mind is to put two self tapping screws (opposite each other) into the steel oil seal case and pry them out, being careful not to screw into the end of the bush for the propshaft. The tailcasing is quite thin there and they do get damaged so you don't want to be hitting it if you can help it, just gentle persuasion is the key.

[miked]

I have done one from under the car laying on my back. Not nice. PITA

[JasonJ]

Thanks for the reply’s.

After doing some reading on posts regarding tail seal and recalling chat previously about shimming up the gearbox to give clearance from front of rocker cover to bonnet.

I was made aware by a post showing a picture of chassis clearly showing spacers needed between gearbox mount and gearbox cross member on to chassis… which were missing on mine, hence rocker cover touching bonnet.

So put the car on ramps and went about rectifying this using substantial washers to create spacers, removed front seat and through the inspection hatch I could see there was very little oil to none round tail seal, I proceeded to fit washers (spacer) took a step back and the yoke and prop shaft look more correctly lined up, which in turn will sit better coming out of gearbox, I think the spot of oil I seen beneath the car may be coming from the speedo cable fitting which I believe has an oring in it ( should be an easy fix).

Even the gear lever sits better now and holds in the rubber gaiter ( small win).

Took car for quick run and all seems fine, will check at start of next year regarding oring on speedo, Car will do very little to nothing from now till April apart from getting new Cams.

All this from fitting a welch plug !

Regarding removing the seal did think about fitting jubilee clip round tail of gearbox to let me be slightly more vigorous when trying to remove the seal and not breaking the casting of the gearbox, but I’m grateful for the reply’s, because I was nervous about tackling seal in situ because as there is very little room, but thankfully I don’t think I need too.

Every day is a school day

[promotor]

Thanks for the reply’s.

After doing some reading on posts regarding tail seal and recalling chat previously about shimming up the gearbox to give clearance from front of rocker cover to bonnet.

I was made aware by a post showing a picture of chassis clearly showing spacers needed between gearbox mount and gearbox cross member on to chassis… which were missing on mine, hence rocker cover touching bonnet.

So put the car on ramps and went about rectifying this using substantial washers to create spacers, removed front seat and through the inspection hatch I could see there was very little oil to none round tail seal, I proceeded to fit washers (spacer) took a step back and the yoke and prop shaft look more correctly lined up, which in turn will sit better coming out of gearbox, I think the spot of oil I seen beneath the car may be coming from the speedo cable fitting which I believe has an oring in it ( should be an easy fix).

Even the gear lever sits better now and holds in the rubber gaiter ( small win).

Took car for quick run and all seems fine, will check at start of next year regarding oring on speedo, Car will do very little to nothing from now till April apart from getting new Cams.

All this from fitting a welch plug !

Regarding removing the seal did think about fitting jubilee clip round tail of gearbox to let me be slightly more vigorous when trying to remove the seal and not breaking the casting of the gearbox, but I’m grateful for the reply’s, because I was nervous about tackling seal in situ because as there is very little room, but thankfully I don’t think I need too.

Every day is a school day

The use of a jubilee clip is definitely a good idea, might save some heartache if you do decide to tackle it in future!

[david.g.chapman]

I replaced my rear gearbox oil seal a few years ago through the inspection hole....

viewtopic.php?f=37&t=38342&p=264143&hilit=+gearbox#p264143

Cheers,

Dave Chapman.