I have had a cheap Wal-Mart jack for a few years now. I noticed tonight that it has started to leak down right after i pump it up. Is there anything I can do about this or just go buy another cheap jack?
What Iíve figured out over the years is that if you buy an expensive, name brand jack thatís rebuildable, the rebuild kit cost as much as a cheap jack. So I just go buy a new cheap floor jack every 4 or 5 years. They all have different size pads that I keep for different uses. One, I welded a big piece of steel plate on to use for transmissions.
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An exercise in interchangeability on a Well optioned 67 SS 350 vert.
One thing that causes leak-down is putting the gorilla grip on the bleader screw. Just turn it till it bottoms out and stops. No need to torque. The cheap jacks are especially suseptible since the metal is usually softer and will easily gawl if over tightened.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI
Dnult hit it on the head. Also don't let the cylinder shaft get coroded making the orings take abuse. Oh yah... maybe don't store the jack with the valve shut. The high preasure seats normally are semi hard teflon or plastic that take a memory. Once it's take a impression/memory as far as it can be compressed it's not going to be having a good preasure seal since it's like just butting up to the seal material instead of having a good preasure aplied.
My trusty bottle jack was too big and I got tired of using the car jack especially when I would of loved to of done a full front or rear raising in one shot. Bought a cheap floor jack that sure looked small enough to go under the front cross member. Nope the jacks too big to go under. Measure your clearance where you want to jack from. Maybe in the future for driveway and garage plans a lowered section of concrete to facilitate low clerances would be the hot set up. But for now just make sure you can get under where you want to raise from. The hydrolic rolling floor jack sure is small but it's jacking point clearance doesn't make it for me.