Fixing a floor jack that won't stay up
#1
Fixing a floor jack that won't stay up
I have a 3T floor jack that pumps up, but won't hold. It starts to settle back down as soon as I stop the pump stroke. No, I'm not overloading the jack.
What's wrong? Does it just need to be bled or what?
It did this a bunch of years ago but seemed to self correct after leaving it alone for a real long time. It was working great, but got left outside back in the fall and got wet. I pulled it into the garage when I realized it was outside, but didn't try to use it until recently. I had to break out a bottle jack.
What's wrong? Does it just need to be bled or what?
It did this a bunch of years ago but seemed to self correct after leaving it alone for a real long time. It was working great, but got left outside back in the fall and got wet. I pulled it into the garage when I realized it was outside, but didn't try to use it until recently. I had to break out a bottle jack.
#2
If your fluid level is good, then the seals are shot. If you know the brand, you can usually find a rebuild kit. If you don't know the brand you will have to take it apart and take all the seals and gaskets to a bearing house to have them matched up. If the main piston is scored from rust (left outside) it sould probably be cheaper and easier to replace it with a new unit.
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Hawke
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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05-02-2009 03:56 AM