My floor jack just developed a leak. After consulting a search engine, I should be able to get away with ATF. Or, would it be a good idea to get the specific stuff?

Question, what failed to cause the leak? Would simply topping off the reservoir result in that leaking out at the same place? I imagine, but would like input.

This is a Sears, made in China, unit almost 20 years old.

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83 SD

84 CD

2.Take it back to Sears.[Accept NO Bushwa! Take home New Replacement ]

3.Hydraulic Jack Oil is Cheap and available at almost any Auto Box Store.
4.W.A.G. Cheap PRC rubber O-Rings?

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'84 300SD sold
124.128

more then likely the o ring on the pump shaft. any light oil should be fine. Hydrualic oil is the prefered oil.

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1977 240D turbo

It's 19 years too late for that.

Most dino oil might attack seals or swell them. Atomatic transmission fluid will not. It would be nice if it said craftsman on the label as mentioned.

If the label would jack up a car, it would be worth something. But it won't, and it isn't.

All hydraulic fluid is not created equal.

I'll check around tomorrow, I have ATF on hand.

No Craftsman on the label, just Sears.

If the "O" ring leaks again, not sure how to get to it.

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83 SD

84 CD

Agreed, but I'd probably go to a better auto parts store and buy their jack oil, and call it a day. Right size portion to do the job.

But finding the cause of the leak is the key priority.

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)

My Father gave me a large leaky Floor Jack that I did not know leaked until I used it.

I filled the jack (using a meat syringe) with Differential Oil; and used it.

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84 300D, 82 Volvo 244Gl Diesel

Try to pull the top cover off (where the Sears emblem is) and there should be a fill port located there.
I have a similiar unit and replaced it with a 3T Harbor Freight unit and THEN found the fill port.

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Gary
Experience is something you get, Just after you needed it....
'99 E300 295K, '83 300D 220K, '75 240D 185K sold
'80 MCI Bus Conv DD 6V92TA, w/4 cyl. Kubota diesel GenSet 12.5KW

Hmmmm, I thought the screw on the left by the handle was the fill port. I'll look into it further.

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83 SD

84 CD

I found the fill plug and filled it up with jack oil, it's, well, working.

Thanks everyone.

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83 SD

84 CD

I'm glad you are using jack oil. I don't know for sure but I thought that the cleaning properties of ATF (often used instead of that marvelous misery oil for unsticking piston rings) might make things worse for you...

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!