Diff & Gearbox oil cooling on the cheap

[Mettler]

I'm going to the wreckers on friday afternoon to see if I can find a small oil pump from a ****ty little car, and a decent sized windscreen wiper motor to drive it.

The purpose of this is to see if I can rig a simple & affordable oil cooling circuit for my diff and another for my gearbox. No pressure will be required, just circulation.

If I rig this up with a couple of little fans hooked to the oil coolers, hopefully I should be able to do burnouts & trash the car all day long without worrying about parts of my drivetrain biting the dust from cooking the oil !

Your thoughts people ?

Bah I just realised this is the engine only forum, someone wanna move it to the engineering & tech section for me ?
Modified by Mettler at 9:53 PM 6/13/2006

[defrag010]

http://store.summitracing.com/...w=sku

[Mettler]

Holy crap ! That's mean, but converted to NZD and accounting for freight & shipping, that's about 10x as much as I'm wanting to pay !

[John Dixon]

Have you though about a toyota MR2 power steering pump (electric). Cheap from breakers because they never go wrong and flowrate would prob be OK with unrestricted lines? Might be worth a shot. Using one on my car for p.s. but was also thinking of trying it for transmission cooling too.

[Mettler]

Thanks John, now that's the kind of thing I'm talkin about !

What model MR2 you talking about ? 80's or 90's ?

[mtcookson]

90's 2nd gen MR2 and the 2000's MR2 Spyder i know for sure use electric pumps.

[Mettler]

Primo, will look into it tonight ! Cheers

[T45]

What kind of pressure do the MR2 pumps put out? I know this isn't a truck forum but do you think it would be enough to turn 35x12.50's with stock frontier steering box?

[John Dixon]

Haven't tested the pressure or found it in a manual anywhere.On my 300ZX it feels OK and the stock pump on that is 80bar.

[T45]

Thanks, I may look into that option if fitting the Q45 steering pump is going to give me issues in my wittle twuck...

[dsagers]

Thanks John, now that's the kind of thing I'm talkin about !

What model MR2 you talking about ? 80's or 90's ?

I have one of those pumps. Can you tell me anything about the wiring?

Many electrical connections, and I beleive some are for the variable rate depending on speed and angle of the steering wheel. I won't even pretend to try and connect up all of the variable controls, just want a basic idea of which wires/plugs to use to switch it on & off?

[Mettler]

No clue mate, look for red and black !

Suss out which ones are for power, and you should be able to rig up a potentiometer to the others to vary the speed. Just remember all you need is circulation, not pressure... if you're doing what I'm talking about using it for.

[John Dixon]

The tqo big ones are power, others are brush wear and running feedback: