Jacking point damage? |
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Jacking point damage? |
Biggles |
Mar 25 2020, 10:00 AM
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#1
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Member Group: Members Posts: 191 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England |
I've noticed that the front jacking points on my car aren't level, and wondered if they've gone up as the car has been lifted - thoughts? It all seems solid.
Attached thumbnail(s) |
SirAndy |
Mar 25 2020, 10:15 AM
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#2
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Resident German Group: Admin Posts: 41,580 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
They are crooked because those aren't jacking points!
There is noting solid on the other side, using them as jacking points means you are deforming your floorpan. (IMG:style_emoticons/default/shades.gif) |
Biggles |
Mar 25 2020, 10:29 AM
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#3
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Member Group: Members Posts: 191 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England |
They are crooked because those aren't jacking points! There is noting solid on the other side, using them as jacking points means you are deforming your floorpan. (IMG:style_emoticons/default/shades.gif) Ok not good. Thanks. I had used a reference on the world referencing round 'donuts' that were safe to jack on - evidently not! What purpose do those areas serve ? So where is good to Jack up the car? |
dr914@autoatlanta.com |
Mar 25 2020, 10:37 AM
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#4
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914 Guru Group: Members Posts: 7,770 Joined: 3-January 07 From: atlanta georgia Member No.: 7,418 Region Association: None |
jack under the engine mounting bar, or the front cross member, these are to rest jack stands with pieces of plywood to cushion the jack stand from the donut
They are crooked because those aren't jacking points! There is noting solid on the other side, using them as jacking points means you are deforming your floorpan. (IMG:style_emoticons/default/shades.gif) Ok not good. Thanks. I had used a reference on the world referencing round 'donuts' that were safe to jack on - evidently not! What purpose do those areas serve ? So where is good to Jack up the car? |
bretth |
Mar 25 2020, 11:05 AM
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#5
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Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
I thought all four doughnuts were for jacking up/supporting the car. I always used a padded floor jack there and don't think i ever bent any except the rusty one under the hell hole on my car.
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Biggles |
Mar 25 2020, 11:13 AM
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#6
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Member Group: Members Posts: 191 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England |
Cheers George. No engine mounting bar. It's a 6. I've been jacking on the rear donuts or on the trailing arm pick up points at the rear - no good?
jack under the engine mounting bar, or the front cross member, these are to rest jack stands with pieces of plywood to cushion the jack stand from the Attached thumbnail(s) |
SirAndy |
Mar 25 2020, 11:17 AM
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#7
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Resident German Group: Admin Posts: 41,580 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
The donuts were used to suspend the cars on the assembly line.
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Biggles |
Mar 25 2020, 11:18 AM
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#8
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Member Group: Members Posts: 191 Joined: 5-September 13 From: UK Member No.: 16,353 Region Association: England |
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SirAndy |
Mar 25 2020, 11:19 AM
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#9
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Resident German Group: Admin Posts: 41,580 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
And if you check the location of the donuts in the front and look at that location from above you'll find that it is only supported by the thin sheetmetal of the floor pan.
In the rear, it's only supported by the thin sheetmetal of the triangle piece in that corner. There is nothing structural backing up any of the donuts ... (IMG:style_emoticons/default/shades.gif) |
wes |
Mar 25 2020, 11:58 AM
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#10
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wes Group: Members Posts: 1,588 Joined: 8-December 07 From: Ukiah Ca Member No.: 8,436 Region Association: Northern California |
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kroelofsen |
Mar 25 2020, 02:12 PM
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#11
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Member Group: Members Posts: 100 Joined: 27-June 19 From: The Netherlands Member No.: 23,255 Region Association: Europe |
And if you check the location of the donuts in the front and look at that location from above you'll find that it is only supported by the thin sheetmetal of the floor pan. In the rear, it's only supported by the thin sheetmetal of the triangle piece in that corner. There is nothing structural backing up any of the donuts ... (IMG:style_emoticons/default/shades.gif) Hi SirAndy, I'm sorry to say I don't agree with you for the rear donuts... Few weeks ago took of the triangle plate + donut to check for any rust and to make it straight again. The donut itself is directly under the frame member and supports it fully, see picture. The front I don't know yet... |
gandalf_025 |
Mar 25 2020, 03:14 PM
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#12
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Senior Member Group: Members Posts: 1,434 Joined: 25-June 09 From: North Shore, Massachusetts Member No.: 10,509 Region Association: North East States |
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rgalla9146 |
Mar 25 2020, 04:34 PM
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#13
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Advanced Member Group: Members Posts: 4,538 Joined: 23-November 05 From: Paramus NJ Member No.: 5,176 Region Association: None |
You can see the point on the floor ,in front of the engine mount where it has been dented in from many years of being jacked up with a floor jack with a piece of wood on it.. (IMG:style_emoticons/default/agree.gif) Very common damage on 6s but hard to avoid as it is a very solid point on the chassis and provides great height when jacked there. |
ctc911ctc |
Mar 25 2020, 04:47 PM
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#14
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Senior Member Group: Members Posts: 885 Joined: 9-June 18 From: boston Member No.: 22,206 Region Association: North East States |
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mbseto |
Mar 25 2020, 04:59 PM
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#15
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Senior Member Group: Members Posts: 1,253 Joined: 6-August 14 From: Cincy Member No.: 17,743 Region Association: North East States |
So aside from accuracy, there's no reason to replace these?
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bretth |
Mar 25 2020, 06:13 PM
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#16
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Senior Member Group: Members Posts: 899 Joined: 23-June 15 From: Central TX Member No.: 18,882 Region Association: Southwest Region |
I think if it was designed to hang the whole car on, it will stand up fine to a properly placed floor jack. I don't think i would use the rear firewall area for a jack though.
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drem914 |
Mar 25 2020, 06:49 PM
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#17
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Senior Member Group: Members Posts: 1,024 Joined: 16-May 08 From: Trabuco Canyon, CA Member No.: 9,062 Region Association: Southern California |
If those are not where we are suppose to jack the car up from, then how are we supposed to use a quick jack? I have one specifically so I don't have to use a single side lift jack to lift the car up. So much simpler to use than jack stands and a shop jack.
@cuddy_k ? |
SO.O.C914er |
Mar 25 2020, 07:25 PM
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#18
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Senior Member Group: Members Posts: 1,235 Joined: 18-July 16 From: Mission Viejo Ca Member No.: 20,199 Region Association: Southern California |
I agree these are the jack points if they are not show something in writing from Porsche indicating the true jack points. I’ve used these since the 1980’s mine are not bent. I’m bent but they are not. (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/av-943.gif) (IMG:style_emoticons/default/lol-2.gif)
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bkrantz |
Mar 25 2020, 08:29 PM
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#19
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914 Guru Group: Members Posts: 7,666 Joined: 3-August 19 From: SW Colorado Member No.: 23,343 Region Association: Rocky Mountains |
They are crooked because those aren't jacking points! There is noting solid on the other side, using them as jacking points means you are deforming your floorpan. (IMG:style_emoticons/default/shades.gif) There is on mine (with some custom backing plates inside the front floor). Attached thumbnail(s) |
914e |
Mar 25 2020, 09:32 PM
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#20
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Member Group: Members Posts: 496 Joined: 21-February 20 From: Arizona Member No.: 23,951 Region Association: Southwest Region |
They are crooked because those aren't jacking points! There is noting solid on the other side, using them as jacking points means you are deforming your floorpan. (IMG:style_emoticons/default/shades.gif) There is on mine (with some custom backing plates inside the front floor). I thought about doing that as well. What gauge of sheet metal did you use? |
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