In the process of rebuilding the motor on my '70S. On teardown, here's the oil pump I found:





It has a triangle pattern for the mounting bolts.

I had ordered the Swiftune SW5-07 kit some time back, and plan to install that cam, timing gears, lifters and oil pump. But the Swiftune oil pump uses two bolts, top and bottom, instead of the triangle pattern. Trouble is, the old pump has a different drive than the new one, so I can't use the old pump (which is near new) with the new cam. Swiftune says to drill a hole in the block, and they say it's a common mod.

Unfortunately the cams for the two pumps are not interchangeable, so I have to use one or the other. The old pump seems to be a better design, because it has a recess in the cover that supports the other end of the pump cam shaft; the swiftune has a very stout cover plate though, and I'm sure it has no trouble retaining the cam.

What say you all?
Ben

Old pump on left, Swiftune on right:

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Ben McCafferty
Bainbridge Island, Washington, USA
1970 ex-police mk2 Cooper S

Your 'original'pump was a 1275 'universal' one that was manufacture for Mini Spares UK. It is Universal because it will fit both Cooper S and 1100S style blocks. NLA these days but is of slightly better design than those around today. The new pumps are quite OK and I doubt you'll have any problems.

It is quite OK to drill & tap the block for the different location of the bolt(s). You should be able to get one bolt in to locate the pump and then 'spot' through the other hole. They are 1/4" UNF.

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