Morris Minor Owners Club

Hi, I have been trying to fill the rear axle sump with the recommended Hypoy, but I simply CANNOT find the top up plug!

I can find the "Air breather", and the drain plug, but nothing seems to resemble a thing for topping up axle oil.

Please , can anyone give me a clue, as I'm in the middle of a service.

Thanks, everyone,
JOHN

you look under the back of the car and in front of you is a big round thing and in the middle of that is the square plug, open it, and fill it with oil (you have to use an oil bottle with a tube coming out of the top) until it starts running out then screw the square plug back in, job done

cheers
grainger

Draper make a large syringe / pump. It great for putting oil in the gearbox. It will also work the other way to suck up fluids. I think the cost was under £10.

James

Thanks chaps, I eventually found the filler further along the axle hosuing-inside and at a right angle, somewhat near to the prop shaft.
Mine must be different to the norm for some unknown reason

You must have a 948cc axle then. The 1098s have the filler in the axle casing, the 948s have it in the differential casing.

yes sorry sloop,

i just presumed you had the minor 1000, its best to say what car you have when you ask mechanical questions or it gets confusing

cheers
grainger

Just as an aside, grainger, the 948 was the original Minor 1000. They upgraded to the 1098 around the same time as the Morris 1100 was introduced, and they thought it would confuse the public if the Minor was rebadged again.

Even so, you're right. It would reduce misunderstandings if the models are cited in the posts... Glad it's sorted now, any way.

cheers

you learn something every day, well when the message board is working anyway !

grainger

Aren't we all glad it's back, eh?
Maybe we should all get out more... bring on the rally season!!

Hi all, thanks again for the advice, and I'm sorry I neglected to state that my Moggie is a 948 cc.
I've been running Gladys for just under a year and things are still rather new to me, but I'm enjoying learning.
Thanks again.
JOHN

"You must have a 948cc axle then. The 1098s have the filler in the axle casing, the 948s have it in the differential casing."
Mine is a 1964 1098 and the filler is at the rear of the diff casing (a plug taking a square "spanner"). Was there some "crossover" or have I got a 948 axle? Is there any difference in the final drive ratio? I shouldn't be worried as it hase been on the car since I owned it (13 years)!

I dunno about cars ratios etc the only differance I know of is that the commercials (vans and pickups) are lower range than the cars.

If your filler plug is in the differential casing (on the driver's side, IIRC) then it is a 948cc diff casing. If, however, the filler plug is on the axle (right in the centre at the back) then it's a 1098 axle casing.

Sometimes you find cars with two fillers (i.e 1098 axle and 948 diff) or no fillers at all (i.e. 948 axle and 1098 diff).

As a 1964 car yours ought to have the 1098cc drivetrain, but the car is nearly 40 years old. How many people have owned it / worked on it? It's possible that to cure a grumbling axle a different differential was fitted, but it's no matter really.

The ratio is slightly different, but I can't remember the numbers. It is, however, negligible in terms of performance.

With a 1098 engine and box, the 948 diff is good for towing and acceleration, but the 1098 is better for cruising as it raises the top speed by about 1.5 mph.... Whoo!

HTH

Thanks, I think I will have a good look! I have probably not understood the difference between the axle and Diff casing and confused myself, easy to do at my age!