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Old 02-23-2001, 03:37 PM
longston's Avatar
Another View. . .
Join Date: Dec 2000
Location: Mark West, CA
Posts: 787
Cut It Out, You Two...

The intention here is to help PartsShop sell some Liquivacs, not to find ways of replacing it! :p

Don, the seals in the pump never see any oil in the Liquivac because it is a suction device that works on the principle of reverse atmospheric pressure. Your J.C. Whitney electrical pump has an impeller in it, and pulls the oil up, and through the impeller. The concern about changing oil hot with the Liquivac is stated in the instruction sheet that came with the unit: "Do not use with hot engines...Failure to comply may result in tank distortion and/or collapse."

If the two tanks are made from the same material, and Liquivac's is made of thicker material, and you change your oil hot into a thinner tank of that same material, then logic would dictate that the Liquivac should be able to withstand higher temperature than as is stated in the product literature.

RSB, get the hell out of here with your fancy $600 medical apparatus! First, where would anyone (me?) get one of these things cheaper than a Liquivac? And remember that blood is both cooler 98.6F, and thinner than even hot motor oil. Also, what about that heat factor on the medical device?

"We drive into the future using only our rearview mirror."
- Marshall McLuhan -

Scott Longston
Northern California Wine Country...
"Turbos whistle, grapes wine..."
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Old 02-23-2001, 04:10 PM
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Join Date: Feb 2001
Location: jErZeY
Posts: 514
Where did you buy your 12v pump and hose.I think its effective and fast than manual
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Old 02-23-2001, 04:45 PM
Posts: n/a
I was only kidding I would never run oil through that thing. I can sell on the used market for 300. Liqivac is the place to go. If I do the math correctly I would only get to work on the unit for .27 hours before I am losing money, buying the liquivac is really the most cost effective way to go. Heck I can fix defibrillators for and hour and buy 4 of those things
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Old 02-24-2001, 11:42 PM
Posts: n/a
I Like Mine

Scott, My remarks about the heated oil damaging the Manual pump seals, was taken from comments about the new kid on the block. I understand how the reverse pressure principal operates.

Ronald_M, the 12 volt electric pump I have on my El Cheapo Topsider can be mail ordered from J.C. Whitney in Chicago, Ill. It normally sells for $19.95 plus frieght. The 2 1/2 gallon Gott fuel container sells for approx. $4.95 at Walmart. If you need more info contact me at my E-Mail address, this has gone far enough on the forum.
This electric Topsider pumps the sump empty in about 2-3 minutes.
I hope this will be the last comparison between the two different, but the same oil changing aide.
Happy Trails Beep Beep from Houston!!!
Donald, El Cheapo
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