Reading up on diff/tranny fluid changes etc.....

Is it safe to use the same fluid pump for the different parts that need one for fluid changes?

OR is it just ok, and ideally have a separate pump?

Just wondering, as I don't fancy having bit's of kit lying around, when one can be re-used for other jobs.

 

I use separate pumps.

 

I use the same pumps for all.Just make sure they drain well.

\rlr
Carolina

 

Yep do the tranny first then flush out the pump by squirting out a little diff fluid, since it's thicker it'll push out any tranny fluid left in the pump. Then buy a new pump, they're like $7 at Wal-Mart or the autoparts store.

 

It would be best to have separate pumps. But if you have to use the same pump clean it first. I take a can of brake clean, put on the straw that comes with it and spray up into the pickup of the pump. Then pump it a few times to get the brake clean through the pump itself. Also spray the straw into the output hose on the pump to clean it out.

But really pumps are cheap and you are saving a lot by doing it yourself. So having one for each fluid is the way to go.

 

every pump I've used eventually developed leaks and turned out to be a pain in the butt to use, didn't matter between expensive pumps or cheap ones. I spent a ton of money only to end up with leaky pumps, and lots of wasted fluid.

I finally built a funnel and tube for the tranny (which I place and fill from the engine bay) and one for the differential (which I use from just above the driver side wheel well). This is so much easier than pumping. I dump fluid into the funnels, then I pull the tubes out of the fill holes and let the excess fluid drain into a pan. 5/8th inch clear tubing fits perfectly into the two fill holes. I made two funnels and tubing for less than ten bucks, and they should last forever, let gravity do all the work.

 

Like others have said, spending $4 at Wal Mart for a "Marine" fluid pump is not going to break the bank. I do use the pump for a variety of fluids. I have a small square plastic "tub" I use to let it sit and drain/store in. Think it was a dog treat container. I just squirt a little new stuff through it. Most of the old stuff drains away so there is not much residue to begin with.

 

Grand Idea.... However I'll be working in a pit under the car, I suppose a simple tripod would do the work to hold the funnel above diff/tranny height though...



Have done, 2 x for 6 English, Our local motorfactor only does syringe type for £10 a piece, and I thought that was a bit expensive.

Thanks all, And I'll remember I can use 1 with the heavier fluid after the lighter if one breaks LOL.