In with all of the bits and bobs hanging around my garage are several oil pumps from various engine rebuilds along the years from several people.

Now, I know that as a matter of course, we all install a new pump when we do a rebuild - after all, they're only about $60 - but how do you check if these old pumps are scrap or worth re-using.

I'm a bit dubious about the quality of parts, seals etc that we are getting lately, hence the question.

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Rod
http://smg.photobucket.com/albums/v607/Rodney/

To tell if they're any good you need to pull them apart, and visually check them as well as do some measurements.

A lot of the older service manuals take you through the process and give you all the vital dimensions.

If they've been used for any length of time in a mini engine they're likely to be internally scored from bits of crap sucked up from the gearbox....


cheers

Jacob

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'72 Clubman Van - 1022cc, 295 head, 731 cam - Daily Driver
'69 Morris 1100 S - Dinged by a bus, in shed under repair
'64 Morris 1100 - Early 1100, long term project

I used a s/h pump for my rebuild. 80psi pressure when cold, has been since day one. As Vulcan says, check for scouring on the pump drive and lobes, there should be no play in the drive assembly etc

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Lillee - 1969 Morris Mini K

As said above. Any scoring or gouging, I'd bin it.
With pin drive pumps, pay attention to the slot in the pin. Some recent pin drive pumps tend to crack those 2 ears off.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

well said Jacob & Doc

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.

I've bought a brand new one - I must look for the brand or something.



Day later than when i posted the first line - well, there's no markings on the new pump. No country of origin or anything.

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Rod
http://smg.photobucket.com/albums/v607/Rodney/