SWB Head Stud upgrade- worth it??

[304065]

You can buy a NEW 3,2 pump if you insist, and remove the pipe, and put the old pipe on from an SC.

There's nothing wrong with a good used oil pump- you can easily remove the four M6 (10mm ATF) nuts and disassemble the pump to verify that there is no catastropic gear damage, inspect the case (the end of the case can be sanded on a surface plate or sheet of glass to reduce end clearance if it's too much) and clean the pump thoroughly. This is precisely what I did when I put an SC pump in my 2,0. I think a good used was about $225, and when I took it apart, it was perfect.

[Henry Schmidt]

We have good updated/rebuilt pumps in stock.
We disassemble the pump, inspect, replace any parts that don't pass inspection and then modify the housing for increased flow. On most pump that is a 15% improvement.
I would avoid using any of the early mag pumps (even the "late 75-77" 2.7 pump) because magnesium hates heat and when hot, it expands creating huge clearance issues inside the pump.
That is one of the reasons why many mag engines have very low pressure @ idle.

As for Walt's idea of testing pumps, we did that back in the day with a lathe and pump jig. It gave us pretty accurate numbers about flow and pressure and allowed us to measure our pump upgrade. The biggest issue was heating the oil to get truly accurate operational numbers.
This equipment is long gone but the test information still lives in my head.
Sometimes I think it would be nice to reboot and loose some of that crap floating around in there.
Cheers.

[210bhp]

Originally Posted by Henry Schmidt

This equipment is long gone but the test information still lives in my head.
Sometimes I think it would be nice to reboot and loose some of that crap floating around in there.
Cheers.

Not as easy as it sounds especially with a diminishing hard drive capacity with every passing day. Before you reboot you really should make a full backup. This is not easy either because you can't get a cable to connect your hard drive to another. The alternative is to make a full hard copy back up which will require you to write an enormous book which will take too much time. With a finite capacity I now find I have to dump some stuff at random (I can't remember what I have forgotten until I try to access the relevent file only to find it empty) before storing new stuff. Best just to accept what files you have stored and just use them as reference files dibbing in and out. I'm afraid that include crap you find when surfing the whole drive. Selective delete does not work because even though you think you have got rid of it, it pops up again when you least expect it as there is no button marked 'permenant delete'. Fragmentation is also a major problem as time passes and again this happens randomly so I wish you luck with your 'disc cleanup'.

Regards
Mike