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> Engine Bar, Is this an acceptable jack point?
JawjaPorsche
post Nov 7 2011, 06:20 PM
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I noticed that a teener on ebay is supported by the Engine Bar and not the jack point on a lift.

Is this a definite no no?


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SLITS
post Nov 7 2011, 06:25 PM
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Should be just fine ......
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rwilner
post Nov 7 2011, 06:51 PM
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that's where I support mine -- one jack at either end of the engine bar
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mikea100
post Nov 7 2011, 06:58 PM
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It's perfectly safe, I do it all the time.
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SirAndy
post Nov 7 2011, 07:01 PM
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What?
That's a early tail shifter with RUBBER outer mounts!!! (IMG:style_emoticons/default/blink.gif)


Those mounts should be toast the first time you use that bar to jack up your car ...
(IMG:style_emoticons/default/popcorn[1].gif)
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HAM Inc
post Nov 7 2011, 07:11 PM
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QUOTE
Those mounts should be toast the first time you use that bar to jack up your car ...


Yep. And the sheet-metal that the rubber mounts bolt to are 1mm thick, spot welded to the long's and is probably rusty inside. It supports the engine and tranny, but the car is a lot heavier. I never did used the engine bar for support.
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Valy
post Nov 7 2011, 07:13 PM
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QUOTE(SirAndy @ Nov 7 2011, 05:01 PM) *

What?
That's a early tail shifter with RUBBER outer mounts!!! (IMG:style_emoticons/default/blink.gif)


Those mounts should be toast the first time you use that bar to jack up your car ...
(IMG:style_emoticons/default/popcorn[1].gif)

(IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif)
I was about to say the same thing but Herr Andy has more spare time to surf the site more often (IMG:style_emoticons/default/smile.gif)
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yeahmag
post Nov 7 2011, 09:09 PM
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I personally think it's fine on the later cars if they aren't rusty. I typically jack from the donuts...
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monkeyboy
post Nov 8 2011, 03:50 PM
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I only use the jack points. The bar is rubber mounted to the car and pretty flexible. with the give that the engine mounts have, I wouldn't think they could hold the load.
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Cevan
post Nov 8 2011, 05:21 PM
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Before you support the weight of the car on the engine bar, shouldn't you know the yield strength of the two bolts (#20 below) that attach the small metal piece (#11) to the chassis? When you jack it from the engine bar, you are stressing those bolts in a way they normally aren't stressed.

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Drums66
post Nov 8 2011, 05:25 PM
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QUOTE(yeahmag @ Nov 7 2011, 07:09 PM) *

I personally think it's fine on the later cars if they aren't rusty. I typically jack from the donuts...


Yes......I do(did) (IMG:style_emoticons/default/poke.gif) (IMG:style_emoticons/default/shades.gif)
(IMG:style_emoticons/default/bye1.gif) (IMG:style_emoticons/default/flag.gif) (IMG:style_emoticons/default/smoke.gif)
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bigkensteele
post Nov 8 2011, 06:23 PM
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I jack mine up under the muffler.

On an unrelated note, I have this mystery exhaust problem...
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URY914
post Nov 8 2011, 06:42 PM
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As far as "stressing" the #20 bolts above. Hogwash IMHO. Bolts are in tension or compression all thier lives. That's what bolts are made to do.
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Cap'n Krusty
post Nov 8 2011, 08:12 PM
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So, what's the longitudinal shear strength of an 8mm 8g bolt? Granted, there are 2 per side, but you may be pushing it to subject them to the weight of the car. The load applied by the driveline is substantially less because the outer mounts sit on the body. Lifting by the mount hangs the body FROM the mounts. Think about it.

BTW, the engine supporting trick for an Audi 100 LS was to run a single long 8mm bolt through the front "snubber" mount behind the grille and hang the entire weight of the engine and tranny from that bolt and the nose sheet metal. That's the other side of the question. I think you CAN jack the car from the motor mount, but it doesn't mean you SHOULD.

The Cap'n
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Rand
post Nov 8 2011, 08:22 PM
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If the bolts were sideways, then shear strength would make lifting there totally retarded. The bolts are vertical...So they can handle it. Not that URY's car figures into this. You probably could lift his by the muffler. (IMG:style_emoticons/default/laugh.gif)

But hello, there's a drivetrain hanging suspended from a mounting system designed to hold just the front half of the drivetrain. Since the drivetrain weighs significantly less than the car, whether it can handle it or not, lifting the whole car from there is questionable.....Multiplied times 30+years of rust damage in those thin mounting structures only makes it more questionable.

Yeah, I've done it before. Would I do it again just because it's been done? Not unless I was under the influence of another drummer's weed. There are other jacking points that are without question, so I use those.
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tscrihfield
post Nov 8 2011, 08:28 PM
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QUOTE(bigkensteele @ Nov 8 2011, 08:23 PM) *

I jack mine up under the muffler.

On an unrelated note, I have this mystery exhaust problem...


(IMG:style_emoticons/default/lol-2.gif)
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URY914
post Nov 8 2011, 09:32 PM
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QUOTE(Cap'n Krusty @ Nov 8 2011, 07:12 PM) *

Think about it.
The Cap'n


OK, I'm thinking about it..................still no problem with it.
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Series9
post Nov 12 2011, 06:42 PM
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I don't pick them up that way, but then I'm a "tranny jacker", so don't listen to me:)
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