General chat that fellow COM'ers may be interested in.
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breakaway500
- Speed Racer

- Posts: 2663
- Joined: Wed Aug 29, 2007 8:47 am
- Location: In my shop,usually.
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by breakaway500 » Wed Jun 18, 2008 8:25 am
I have tried a few of the "racing" alu inexpensive jacks and the weak point seems to be the seals and the U-joint connector for the release valve.
I recently bought this BlackJack from Wally world for $65.Rated at 3klbs,weighs about 20lbs. and take 3-4 pumps for full rise,and gets under very low cars. It hasn't leaked,but the troublesome U-joint did get mangled the first time I let someone use it who did not know enough not to muscle it down tight.
I replaced the U-joint with a 1/4" S&K swivel and the jack is a joy to use now.
$65 for the jack,$10 for the swivel (and 15mins worth of welding) and it seems to be a keeper.
Repair job

It's not what you drive, it's how you drive. "Lap times matter"
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JackFFR1846
- Speed Setter

- Posts: 187
- Joined: Tue Oct 18, 2005 12:56 pm
- Location: Hopkinton, MA
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by JackFFR1846 » Thu Jun 19, 2008 2:13 pm
.......what? Oh....I thought you were looking for me.....
(a good racing "jack"....)
yes....I know....only entertaining to myself. That's ok.
jack
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eastcoastbumps
- Speed Racer

- Posts: 391
- Joined: Mon Jul 31, 2006 10:41 am
- Location: Central MA
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by eastcoastbumps » Tue Jun 24, 2008 2:09 am
I have a Craftsman alu jack with a 1-year warranty. Some how it always breaks right before the warranty is up. Either a seal or a castor. I'm on my 3rd or 4th.
Pete McParland #617
Honda S2000
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Subw00er
- Speed Setter

- Posts: 172
- Joined: Mon Oct 17, 2005 1:23 pm
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by Subw00er » Tue Jun 24, 2008 5:13 pm
I love my harbor freight small racing jack. Its fast, light and hasn't let me down yet. Its around 80-$90 but I'm sure you can find it on sale.
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MiataSteve
- Speed Racer

- Posts: 367
- Joined: Wed Jul 20, 2005 6:39 pm
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by MiataSteve » Sat Jul 12, 2008 12:09 pm
Tore down the Craftsman unit. I found one torn O-ring and a couple with compression set. Got some new ones at Metric Screw and Tool,
http://www.metricscrew-toolco.com/ . Metric O-rings....more China stuff! Just add new jack oil and go...
Nice to fix something for under $10
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