Another J&S Jack Conversion
Ultimate HDF Member
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From: SW FL-Jersey Shore Emigre
That ^
Seasoned HDF Member
Joined: Jun 2015
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From: West Central FL
I'm buying the bottle tomorrow and doing the mod!
Last edited by Hey Man; Apr 2, 2016 at 05:36 PM.
Grand HDF Member
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From: Omaha
You've never used a lift jack or table have you. The J&S takes 78 pumps to raise it to the full up position. A Craftsman lift takes 49. The purpose of the mod is to let tools do the work. You don't cut hose with your teeth, pull out screws with your fingers or bang nails in with your fist do ya? 'Course not. Let the tools do the work.
I'm buying the bottle tomorrow and doing the mod!
I'm buying the bottle tomorrow and doing the mod!
"You've never used a lift jack or table have you?"
My answer; sure I have many times that's how I know what I'm talking about.
Perhaps I should clarify my comment that it takes 10-12 pumps to fully lift a bike.
When I mentioned the 10-12 pumps I should have stated that I was referring to the Craftsman yellow jack which is configured like a traditional floor jack with a handle to pump the jack vs. a foot pedal.
With my Craftsman yellow jack it takes 2 pumps to lift both tires off the ground and 9 pumps to get to the "full up position".
I know this to be fact because I just tested this 10 minutes ago.
That being said I've owed a Craftsman red jack at one time and I really don't think it takes anywhere near 49 pumps to get to the "full up position".
Perhaps someone who has one can test that out and let us know.
So IMO if it takes too much effort to raise a bike using a jack with a foot pedal configuration perhaps the resolution isn't adding air to an already high priced $450 jack but rather getting a different configured jack like the Craftsman yellow jack which cost more than 60% less than a J&S jack.
Add a Redline's dolly to the setup and you end up having a better setup than the J&S jack and spend about 40% less for it.
However like I stated in my post:
Seasoned HDF Member
Joined: Oct 2007
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From: Western South Dakota
I finally got around to changing my J&S jack over to air-power, and all I can say is it couldn't have been easier! I used the ubiquitous Strongway #46209 Air/Hydraulic bottle jack. The original poster that converted his J&S mounted the Air bottles that the manual pump lever couldn't be used. Then another poster reversed the bottle so that it could be, but used the original holes in the J&S mounting plate and had to drill & tap the base of the Strongway. Well, there's a much easier way - just remove the J&S bottle jack, set the new Strongway bottle jack in it's place. Mark 3 holes that will go through the base of the Strongway and the J&S mounting base (see pictures), then drill the Strongway base, set it in position on the J&S mounting base (I clamped it with a pair of Vice-Grips) and scribe the J&S base, remove the Strongway, then drill the J&S base. I used 1/4-20x3/4" bolts. Now I can use Air or muscle power to raise the J&S jack.
Very cool!!
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From: Omaha
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Joined: Nov 2010
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From: Oxford, Nc
But when I work on a bike, I always use the locks and release the jack pressure immediately (way more stable that way.)
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From: San Diego, CA
My jack bottle stays up (I run it under the tool chest when in storage and pump it up enough to touch the bottom of the chest and weeks later it's still up.)
But when I work on a bike, I always use the locks and release the jack pressure immediately (way more stable that way.)
But when I work on a bike, I always use the locks and release the jack pressure immediately (way more stable that way.)
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From: MASS_hole
My jack bottle stays up (I run it under the tool chest when in storage and pump it up enough to touch the bottom of the chest and weeks later it's still up.)
But when I work on a bike, I always use the locks and release the jack pressure immediately (way more stable that way.)
But when I work on a bike, I always use the locks and release the jack pressure immediately (way more stable that way.)
Seasoned HDF Member
Joined: Nov 2010
Posts: 17,548
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From: Oxford, Nc
It's all in a carport, and even though this is God's country with not a neighbor within a 1/2 mile, raising the jack (and a few other tricks,) means nothing rolls easily out of the work area unless you know what I did.