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Rear Diff Fluid fill - fluid pump suggestions?
Old 03-25-2017, 12:46 PM   #1
steeters
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Rear Diff Fluid fill - fluid pump suggestions?

I'm lazy.

I've got a car that doesn't have enough room to tilt a gear oil bottle to fill it.

I've got one of those hand pump fluid transfer deals. There has got to be a better way tho.

Any first hand experience/suggestions on a simple self-powered pump...drill powered would be cool, but I'm open to suggestions.

Seems like after pumping like crazy I get tired and irritated and then I'm just knocking things over and pulling the pump tubes out of the differential, etc.

Thanks,

Steve
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Old 03-27-2017, 07:52 AM   #2
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I used a hand pump that screws into the gear oil that you normally tip. I just work through the pain and realize I only change gear oil once every few years.
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Old 03-28-2017, 01:10 PM   #3
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Different fluid transfer pum?

Here's a cheapy that works ok
https://www.summitracing.com/parts/wmr-w1156/overview/

Electric? Not sure how well it will work with gear oil.
https://www.summitracing.com/parts/joi-jb5684/overview/

Or buy a nice one, this one is pretty big but I know it's a good piece
https://www.summitracing.com/parts/lil-17282/overview/
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Old 07-18-2017, 12:28 PM   #4
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I just learned a great method for pumping fluid. Figured I'd mention it here.

I saw this on LMR.com

I was filling an 8.8 rear end. I used a clear tube 1/4" ID - one end in the diff, one end on the jug.
Tilted the bottle level somewhere about even with the rear end, poked a hole in the bottom of the bottle, and shot compressed air into the bottle with my compressor. Emptied the bottle with no problem at all.

I had the compressor at 30psi and gave it a few quick shots. You can feel the bottle balloon a bit. Keep the pressure up in the bottle and it will be empty in a few minutes.

The only heads up is that there was still a few ounces left in the 2nd quart, and I was stuck with two bottles with holes in the bottom. Next time I'll poke a hole in one, and when it is empty, I'll transfer fluid from the second bottle into the first so I don't end up with two bottles with holes.
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