Morris Minor Owners Club

Okay, well that is a mis-leading title but...

I had a feel around on Hebe this afternoon for the 'lubrication' hole on the water pump and found none. Were any waterpumps produced which didn't have a hole in them for lubricating the pump? The replacement one I've just purchased has one on it but the current one doesn't. (I was hoping to make the waterpump last till after we move before I put the new one on)

Cheers...

Nikki

I thought waterpumps were lubricated by the coolant? Modern ones are.

Hmmm Good point Onne. However, the new one has the hole so -I'm iggerant on this one!

I'll take a look at minenow, is it possible to see the wee hole without taking anything apart?

Well, I think the hole is on the bottom of the pump... at least it is on the new one

I don't see any holes under the pump body on my car, mind you it is quite dark out there

Hello all,

some water pumps have a hole in the casing so that if the seal begins to leak you have evidence of that. Some older pumps had grease nipples so that the bearings could be greased but I haven't seen any for some time. The coolant cannot lubricate the pump as the seal keeps the coolant seperate from the bearing(s) and ball bearings do not like being lubricated by coolant in any case.
The above comments are general and not specifically Minor.

Alec

How do I get the idea about coolant and leubrication then??

How do I get the idea about coolant and leubrication then??

Perhaps you are thinking the seals are lubricated by the coolant, rather than the bearings. Certainly on MMs the bearings are dry side, and the hole is a drain hole. I'll try to have a look at a modern pump to figure out if they are different.

Hello all,
further to my earlier post, I have stripped a Triumph water pump recently and the only difference with the modern version is that the bearing is a long one piece sealed bearing rather than two and a spacer of the original design.
I think Lowedb has hit on the answer, Onne, but it seems to be a common misconception.

Alec

Hi,

we replaced our water pump last year and both the old and new ones only have a drain hole, no grease points.

HTH

Nikki,

I'll second edjones' comment. I bought a new (cast metal type) pump from Charlie Ware's. there were no lubrication points on it - just a drain hole.

It's about a 40 minute job to change the water pump (if everything goes well!).

Colin

Some of the current water pumps have a bigger impeller - which can foul on the inside of the non-940 head. Check when fitting. Also - the Metro pumps have no bypass hose connection - this is an excellent idea (just think of all the trouble/breakdowns/cost over the years that the stupid by-pass hose has caused A series owners !!) but of course you need to blank off the matching passage in the head - or use a Metro head.