19 replies to this topic

[Ipod]

Can the diff output shaft oil seal be renewed without removing the output flange cover?

As iv got an oil leak were the driveshaft goes into the box

 

cheers

 

Ipod

[cradley-heathen]

it is possible to change it in situ yes, but for the sake of undo-ing 4 or 5 bolts you can whip it off and do it on the bench, at teh same time you can make up (or buy) a gasket to go behind the output casting as that may have started to leak too.

 

i did just this on wednesday on a customers car!

[Ipod]

Thanks mate, i found out from the FB page that the special tool to knock the pot off might be needed too

[IainStallard]

Thanks mate, i found out from the FB page that the special tool to knock the pot off might be needed too

It's possible without the tool, however I have the minispares tool and makes the job a hell of a lot easier!

[Barman]

Thanks mate, i found out from the FB page that the special tool to knock the pot off might be needed too

 

Crow bar or other lever... make sure you don't damage the box or diff tho....

[Ipod]

anyone near Bexleyheath that i can borrow the tool for a day or 2 in a couple of weeks time....cheeky i know

[IainStallard]

anyone near Bexleyheath that i can borrow the tool for a day or 2 in a couple of weeks time....cheeky i know

I'm probably a bit far away!

When you do change it, don't forget to drain the oil otherwise you're in for a big surprise when all the oil pours out!

[Dan]

  Before you start check if the pot joint can be wobbled around in the housing.  Quite often the failure of this seal is due to wear in the bush allowing the joint to move.  If that's the case then replacing the seal will not stop the leak, a new bush will need to be fitted and reamed.

[Ipod]

Iain, not that far if your near box, as im over that way somtimes on my motorbike.

 

Dan, thanks for the info, i'll check that tomorrow

[IainStallard]

Iain, not that far if your near box, as im over that way somtimes on my motorbike.

 

Dan, thanks for the info, i'll check that tomorrow

PM'd :)

[Dan]

  The leak can also be due to the area of the joint that the lip of the seal bears against having worn down over the years and again in this case the new seal by itself may not cure it either.  Then it would be time for a new joint.

[Ipod]

is there a specific size reamer bit i need?

[tiger99]

It is very large, the diameter of the inner end of the pot joint, plus a very small running clearance. I don't have the exact size. It is not a job that you should think about doing at home, as it needs to be done on at least a pillar drill, maybe even a milling machine, so that the reamer is accurately perpendicular to the side cover. The bush is short in relation to its diameter. Doing it by hand is of no use at all, unless you are very lucky.

 

The several Rover manuals which I have don't give the necessary information, although they do show how to change the oil seals. Reaming these bushes would be well beyond the capabilities of most garages.

 

New side covers, with bushes already reamed, are about £60 each, and even at that price I think a new pair would be cheaper than the correct reamer.

 

I would strongly recommend asking your local engineering works to do it for you. Of course, if you have a machine shop at home, please disregard that. I would suggest measuring a new pot joint carefully on its running diameter and adding about 1 thou for clearance.

[Dan]

New complete side covers are now NLA.

[Ipod]

Thanks tiger, i think i'll get new side covers

Dan, what does NLA mean?