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the old hydraulic floor jack trick

posted by  Chris Mullet on  Fri May 25 14:04 CST 2018
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

I had the same issue with my ~20 year old long-arm Harbor Freight floor jack. It would pump up OK but would immediately settle back down. I took the pump apart and found the problem to be some coagulated oil hanging up the check valve - probably absorbed some moisture in the oil somehow over the years??? I don't know. But once I cleaned it all out and replaced the oil with new hyd jack oil it worked fine. No parts, other than oil, were purchased. That was a few years ago and it still works fine.
--
Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)






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