Differential Oil Siphoner
08-24-2007, 04:21 PM
#3
Race Director
I have the same pump pictured in the above article and it works well. I had no idea it was a Mity vac brand, it was in a no name box when I got it. +1 for it though.
08-24-2007, 06:44 PM
#4
Drifting
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consider a vacume pump homemade 'system'
I have used pumps like the above link, and whereas they do work (and might be required for filling the differential), the manual pumping can be a pain and especially difficult if laying down or underneath something, not to mention of questionable ability to evacuate all that can be sucked out when you might need to move the suction hose around at the same time both hands are busy pumping.
A better alternative for draining the differential would be a suction system such as can fashioned from a shop-vac quite easily (as I did) for only a couple of dollars.
Buy a ten (10) foot length of clear vinyl tubing about half the diameter of the drain plug (e.g. 3/8" OD, 1/4" ID -- available at Homedepot).
If concerned about oil splash inside the shop-vac, line the inside of the shop-vac canister with a garbage bag.
Place a rigid container with a large cut-out in the lid (e.g. large coffee can) inside the shop-vac.
Route the tubing through the shop-vac hose opening and then at least 3" into the coffee can through the large cut-out and duct tape to the can lid.
Then use some additional duct-tape to close-up the shop-vac opening.
Now you have a very inexpensive suction tool, which can just be turned on with a switch, with the noise/smell a bit away from you (thanks to the 10 foot length), --AND-- no manual pumping needed.
Also, this 'system' allows you to lay under the car and manipulate the hose into the differential fill hole opening and wiggle it around to get as much of the old oil and metal filings out as possible.
Obviously, you will still need some pumping mechanism for putting in the new oil, to the previous post's pump or I bought the Lubrimatic pump designed for screwing right to the differential oil containers, BECAUSE, there is too much chance of spilling the oil container while laying under a car with just a hose sticking into it.
Also, I pre-mix the limited-slip additive into the first container after it is half emptied, so that the mixing occurs more quickly.
A better alternative for draining the differential would be a suction system such as can fashioned from a shop-vac quite easily (as I did) for only a couple of dollars.
Buy a ten (10) foot length of clear vinyl tubing about half the diameter of the drain plug (e.g. 3/8" OD, 1/4" ID -- available at Homedepot).
If concerned about oil splash inside the shop-vac, line the inside of the shop-vac canister with a garbage bag.
Place a rigid container with a large cut-out in the lid (e.g. large coffee can) inside the shop-vac.
Route the tubing through the shop-vac hose opening and then at least 3" into the coffee can through the large cut-out and duct tape to the can lid.
Then use some additional duct-tape to close-up the shop-vac opening.
Now you have a very inexpensive suction tool, which can just be turned on with a switch, with the noise/smell a bit away from you (thanks to the 10 foot length), --AND-- no manual pumping needed.
Also, this 'system' allows you to lay under the car and manipulate the hose into the differential fill hole opening and wiggle it around to get as much of the old oil and metal filings out as possible.
Obviously, you will still need some pumping mechanism for putting in the new oil, to the previous post's pump or I bought the Lubrimatic pump designed for screwing right to the differential oil containers, BECAUSE, there is too much chance of spilling the oil container while laying under a car with just a hose sticking into it.
Also, I pre-mix the limited-slip additive into the first container after it is half emptied, so that the mixing occurs more quickly.
08-24-2007, 07:17 PM
#5
08-27-2007, 02:38 PM
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08-27-2007, 04:09 PM
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08-27-2007, 04:11 PM
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