 Where to place lift pads when jacking a 914? |
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| type47 |
 May 19 2011, 09:57 PM
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#1
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Viermeister  Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region  |
I'm having my car teched for a driving event this Sat and the car will be placed on a dealer style lift-one with 4 arms/center post/pads at the ends of the arms. Last time the pads were placed on the "donuts" but I was told or thought they were too weak to use to lift the car. Someone said they dent the floor. True or not? Where should I have the pads placed to lift the car?
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| silver74insocal |
May 19 2011, 10:01 PM
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#2
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Senior Member Group: Members Posts: 736 Joined: 26-November 09 From: rancho cucamonga Member No.: 11,073 Region Association: Southern California |
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| type47 |
May 20 2011, 06:56 AM
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#3
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
QUOTE(silver74insocal @ May 19 2011, 08:01 PM)  Thanks. Jacking donuts we used before are circled so I'll chalk it up to overthinking on my part... |
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| Chris Pincetich |
May 20 2011, 02:16 PM
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#4
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B-) Group: Members Posts: 2,082 Joined: 3-October 05 From: Point Reyes Station, CA Member No.: 4,907 Region Association: Northern California |
My front floorpan has a hump inside from repeated lifting on the donut. McMark is helping me rustore it, and said "don't do that anymore." The rear donut is apparently more solid. In your situation, tough call.
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| jsayre914 |
May 20 2011, 02:40 PM
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#5
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Speed Up !!! Group: Members Posts: 3,188 Joined: 10-February 08 From: Timonium MD 21093 Member No.: 8,696 Region Association: MidAtlantic Region |
(IMG:style_emoticons/default/sad.gif) I also have a lump on the front passenger floor from jacking on the donut. Mine happened not on a lift though, it was a basic floor jack and the other side of the car was on the ground. I have never lifted the car on a donut again
mabey it was just my car, no rust anywhere near the donut, (IMG:style_emoticons/default/confused24.gif) |
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| mskala |
May 20 2011, 03:02 PM
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#6
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R Group: Members Posts: 1,925 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None 
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It's true, the front floor pan, where the donuts are, is not stiff.
When I stripped the paint from the interior to do the POR-15 on it, there were obvious bends. Just hit it with a rubber mallet and then don't jack from there any more. If you jack from the rear donut, the front tire comes up anyway. QUOTE(jsayre914 @ May 20 2011, 04:40 PM) (IMG:style_emoticons/default/sad.gif) I also have a lump on the front passenger floor from jacking on the donut. Mine happened not on a lift though, it was a basic floor jack and the other side of the car was on the ground. I have never lifted the car on a donut again mabey it was just my car, no rust anywhere near the donut, (IMG:style_emoticons/default/confused24.gif) |
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| type47 |
May 20 2011, 03:36 PM
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#7
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
So the question returns... Where do you put the pads? The tech is at a Porsche dealer so I doubt the shop mechanics will know (IMG:style_emoticons/default/biggrin.gif) This car need to get up in the air tomorrow... (IMG:style_emoticons/default/popcorn[1].gif)
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| andys |
May 20 2011, 04:24 PM
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#8
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Advanced Member Group: Members Posts: 2,165 Joined: 21-May 03 From: Valencia, CA Member No.: 721 Region Association: None
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Since the lift will be distributing the weight on all four donuts silutaneously, I think that would be entirely acceptable. I suspect the floor pan hump/lump is caused when trying to lift on just that one pad alone with a floor jack.
Andys |
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| KELTY360 |
May 20 2011, 04:27 PM
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#9
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914 Neferati Group: Members Posts: 5,031 Joined: 31-December 05 From: Pt. Townsend, WA Member No.: 5,344 Region Association: Pacific Northwest
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QUOTE(andys @ May 20 2011, 03:24 PM) Since the lift will be distributing the weight on all four donuts silutaneously, I think that would be entirely acceptable. I suspect the floor pan hump/lump is caused when trying to lift on just that one pad alone with a floor jack. Andys (IMG:style_emoticons/default/agree.gif) |
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| oldschool |
May 20 2011, 04:28 PM
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#10
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Advanced Member Group: Members Posts: 3,362 Joined: 29-October 08 From: P-town Member No.: 9,705 Region Association: Southern California |
QUOTE(silver74insocal @ May 19 2011, 09:01 PM) |
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| McMark |
May 20 2011, 04:28 PM
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#11
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
QUOTE Since the lift will be distributing the weight on all four donuts silutaneously, I think that would be entirely acceptable. I suspect the floor pan hump/lump is caused when trying to lift on just that one pad alone with a floor jack. That's probably true. But, the better place to put the front pads is on the long itself. |
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| silver74insocal |
May 22 2011, 03:54 PM
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#12
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Senior Member Group: Members Posts: 736 Joined: 26-November 09 From: rancho cucamonga Member No.: 11,073 Region Association: Southern California |
sorry i should have mentioned im no expert, and that picture is off of another thread or website on the subject.
that being said, old school, i believe you can jack the car up on the side as long as you are directly on the long..but again, no expert (IMG:style_emoticons/default/popcorn[1].gif) |
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