Morris Minor Owners Club

Easy one for someone... do you just keep filling from the hole on the back until it pours back at you & bung the plug in?? (I guess that's be bottom of the threads for a level then...)

The Gearbox is bottom of the threads too right?

Correct on both counts Salty, you really should get yourself a manual even if its only the Haynes one they are often on ebay for a couple of quid.

Salty Make sure the axle is level (left to right ) if you overfill it'll come out the oil seal at the outer end(s )

Drapper does a large syringe for under £10.00 that can be used for sucking old oil out and for easy refills.

James.

If you have the tool to undo the refill/level plug then you also
have the tool to undo the drain plug so why would you want to
SUCK the oil out? You are unlikely to be able to suck all of it
out and would not extract any metal filings lying at the bottom.

Willie,

Where you have a diff or gearbox without a drainplug what harm is there by sucking out old oil replacing it with flesh oil.

Remember that when you are just topping up and not draining then you are not doing anything to improve the existing quality of the oil.

The other point I made was that the syringe was ideal for refilling.

James.

Drained & refilled..... Have 3 manuals here one of which is Haynes but none of them actually specify a level for the diff, just a quantity of oil.....

one of which is Haynes but none of them actually specify a level for the diff,

Great stuff Salty, maybe its missing from yours but my haynes manual on page 7 under Routine Maintenance sections 2 & 3 says to fill to the bottom of the filler hole threads.

James...what are you doing with a diff with no drain plug?

1098 diff, 948 axle case? I had that on Phyllis, but had a reconned 1098 axle case fitted. Still can't get the fill plug out though - I can never seem to get enough purchase on it, and that Halfrauds tool keeps slipping off... Job for next weekend perhaps. :\

The 1098 axle has the filler in the case.
The 948 axle has the filler in the differential.
Fit a 1098 differential in a 948 case and you have no filler.
Both axles have a drain plug in the bottom of the case.

Yes I knew about the FILLER problem but have not heard of
a combination which gave no DRAIN plug. As a matter of interest
what is the procedure when you have no FILLER? A measured
amount of EP down the axle breather hole?

Hi Willie.
I think that the answer to this post should be that you drain the old oil out and replace it with 1 1/2 pints of SAE 90 oil.
Also the easiest way to undo the filler and drain plugs is with the bar from a 1/2 inch drive socket set. (I think that size is the correct one).
I suppose you could use the axle breather hole but it would take a long time. Probably quicker to turn the car on its side!

Willie wrote:As a matter of interest
what is the procedure when you have no FILLER? A measured
amount of EP down the axle breather hole?

This is quite common here.
Simply remove an axle & pour the measured amount in that way.

This is quite common here.

Is that because your drain holes are on the top, not the bottom?

Oh yeah... it's drain plugs we're talking about. If I were awake, I'd be dangerous!

Cheeky, Ray... maybe the export ones used the other parts for different gearing??

I've tried the 1/2" bar from a socket set, but it's still too small - just slips round. I'll have to get her up on axle stands at the weekend and see if I can get any more purchase on it - I've been trying with her on the ground, see.

Gareth the tool I use in a multi application one that has 2 squares on one end and 5 different plug shapes the other and fits a multitude of fillers and drainers, not sure where it came from but Sealy tools normally have suitable tools at reasonable cost.

I have seen that tool in Halfwits before now. It was blue......................

It was blue......................

Thats the one but I have had it over ......years and in those days Halfwits only sold push bikes

I've tried the 1/2" bar from a socket set, but it's still too small - just slips round.

On mine it was just too big... put a vernier in there & measured them at 11mm & 11.7mm so used an 11mm square drain plug wrench. Worked fine. You can get these from Halfwits too but they'd sold out so I got mine from a local motor factor.
Presumably the real plug size for them is 7/16....