Pattern Oil Pump

Post by **Benjy** » Sat Jan 07, 2006 2:47 pm

Has anyone else had issues with these?

My brother bought one a while ago which fits the block a treat, but the back plate won't go.

It came from a reputable supplier too, so I was a little surprised.

Ben

Post by **bmcecosse** » Sat Jan 07, 2006 8:54 pm

All oil pumps are 'pattern' - there were/are several makers. Lets face it - these pumps are made to fit Minis now where there is much more room. Just modify the pump - ie file away where it's fouling - until the backplate fits ok. What pump is it - pin drive, star drive or peg drive ?

Post by **Benjy** » Thu Jan 12, 2006 3:20 pm

Pump drive is standard for Morris (pin? - can't remember).

Never played with minis much, in fact never played with much at all other than Moggies, oh and my brothers Mk1 Fiesta (RIP).

I'll take a file (or angle grinder - he, he) to the pump.

Thanks

Post by **bmcecosse** » Thu Jan 12, 2006 9:02 pm

It will be pin drive unless you have changed the camshaft - which is a GOOD idea! I asked because some of the other pumps have different length drive shafts. I'm surprised you managed to get a new pin pump - must be 'new old stock'. Stick to the file - not the grinder - and take off as little as possible to get clearance. In fact it's only a little tin can that covers the oil pump - I suppose it could be left off in extremis - but keep it on if you possibly can.

Post by **Benjy** » Fri Jan 13, 2006 11:36 am

I thought the 1098 camshaft was pretty good?

What would you put in instead, I'm not really looking for any performance improvement, my brothers saloon always went much better than my traveller.

I haven't got a new pump, just the pattern one that doesn't fit. The engine's been in my parent's conservatory (in pieces) for about 9 months now. He was meant to get it back together before his wedding last July, so now it's on my to do list!

Post by **brixtonmorris** » Fri Jan 13, 2006 12:02 pm

i always use "ae" oil pumps.
i found that the locking ring for the three fixing bolts needed to be cut,
cam pin always fitted with no work to the pump body.

you must remember that whenever you fit an oil pump, it must be filled with oil first before fitting, or when you start your new enging it will not pick up oil from the sump, and will seize .

Post by **bmcecosse** » Fri Jan 13, 2006 1:57 pm

MG Metro cam is a whole lot better - but then you would need a peg drive oil pump. You really should use a new oil pump - and I see Minisport still do the early ones and not expensive at £14.95. Yes fill with oil - some say a mix of oil and grease - just to get suction up. It's always good practice to crank a new engine up (with no plugs) on the starter till the oil pressure comes up.

Post by **Skeggysteve** » Fri Jan 13, 2006 7:18 pm

bmcecosse wrote:.......You really should use a new oil pump - and I see Minisport still do the early ones and not expensive at £14.95. Yes fill with oil - some say a mix of oil and grease - just to get suction up. It's always good practice to crank a new engine up (with no plugs) on the starter till the oil pressure comes up.

What ever the cost of a new oil pump always use a new one - oil is the life blood of engines!

Have heard about the oil/grease thing not sure but so long as it's not to thick should be fine - I alway use a 50/50 mix of oil and STP, not only in the pump but on every bearing and anything else that moves!

Very good practise to get oil pressure up on a re-built engine. Personally I would never start a re-built engine without doing it.

I also try to get oil pressure up on my cars before starting them - turn over until pressure gauge reads something them pull the choke out.

Steve

Post by **bmcecosse** » Fri Jan 13, 2006 8:50 pm

It depends how long the engine is going to stand before it finally makes it into the car - if it's going in next day then oil will be fine. If it's maybe going to stand for a few weeks - then the grease helps to keep the oil in the pump!

Post by **Packedup** » Sat Jan 14, 2006 4:24 am

I use Vaseline to prime pumps and when fitting bearings. I recall reading somewhere that it breaks down easily into the oil, whereas grease contains soaps (to make it greasy) that react with the oil.

Once back together, plugs out and starter on (or a few turns with the handle on a Minor) like already posted on this thread

Post by **bmcecosse** » Sat Jan 14, 2006 10:17 am

Benjy - you worry me a bit when you say you don't have a new oil pump, just a 'pattern' one - what do you mean by this ? Is it the original pump that came with the engine ?

Post by **chrisd87** » Sat Jan 14, 2006 11:24 am

I'd have thought he meant a new pattern of the original one - i.e. new but not made by the same manufacturer.

Post by **bmcecosse** » Sat Jan 14, 2006 4:35 pm

Aye - but there are/were many manufacturers - none were actually made by BMC - so in effect they are all 'pattern'.

Post by **Benjy** » Sat Jan 21, 2006 4:58 pm

When I say pattern, I mean a new one from BM, but it's advertised at pattern.

Thanks for the tip about vaseline etc. The engine will probably be rebuilt rather slowly and may be sitting around for a while before it gets back into the car.

I don't think I'm going to replace the cam at the mo. It's going to take long enough just to get the car back on the road and out of my parents' way.
Not sure what'll happen then though, as much as I'd like it, I don't have the space for another Moggie - at least not until one of the others is fixed! My wife is going to kill me... ;-)

Ben

Post by **bmcecosse** » Sun Jan 22, 2006 3:52 pm

Aye - but a spare engine takes up hardly any space.

Post by **bigginger** » Sun Jan 22, 2006 3:58 pm

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Post by **Onne** » Sun Jan 22, 2006 4:28 pm

This makes no sense, not even for hhmhmh