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Old 08-02-2006, 09:13 PM   #1
Bill M
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Default Trolley jacks bending alloy crossmember AU
G'day All, I was told by a mechanic that the alloy crossmember on AU's supposedly bends if the car is raised by trolley jack there. Fact or fiction?
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Old 08-02-2006, 09:17 PM   #2
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It can break sections of the crossmember. It's alloy, too rigid to bend.
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Old 08-02-2006, 09:26 PM   #3
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Fiction... as AUXRVIII said it may crack if you dont line the cup up correctly but you could never bend one
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Old 08-02-2006, 09:45 PM   #4
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Hope it's not true, i've raised mine with a 3-tonne trolley jack under the x-member more times than I can remember...
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Old 08-02-2006, 09:46 PM   #5
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Thanks for the quick replies guys, I have to jack it up and check it out as I have a clunk noise in the front end when turning
cheers
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Old 08-02-2006, 09:52 PM   #6
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Originally Posted by xr8ute
Hope it's not true, i've raised mine with a 3-tonne trolley jack under the x-member more times than I can remember...
same here ... i am not sure if we are talking about teh cross member or the radiator support. I can believe that the rad support will bend, but crossmember? no way
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Old 08-02-2006, 10:17 PM   #7
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shop manual recomend a block of wood running north south,150 mm long 75 mm wide 38mm deep, with a slot going ACROSS IT 25 mm wide 20 mm from the end and 8 mm deep ,the slot goes toward the back of car, this is recomended for trolley jack support at front. ramps might be an option.
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Old 08-02-2006, 10:31 PM   #8
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not true it is very ridgid and believe it of not it was designed by a woman engineer at Ford. I have replaced only one for breaking and that was one that hit a bridge colvert at 120klm. it broke the back out of it and took the steering rack and wrapped it around the gearbox, shorting the power wire to the starter and burning the terminal out of the battery.
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Old 08-02-2006, 10:34 PM   #9
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Thanks for the quick replies guys, I have to jack it up and check it out as I have a clunk noise in the front end when turning
cheers
Bill.
have a look under the front and see if there is a squashed Commodore parked there. they clunk real bad when they get stuck.
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Old 09-02-2006, 08:24 AM   #10
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Ok that all about the front of your car , So why do people say don't jack an AU up from the diff

I always jacked my old XR6 VCT from the diff centre
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Old 09-02-2006, 07:54 PM   #11
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Alloy is very brittle it will crack before it bends. I hit a gutter at 60kmh in one and it pulled the front end (chassis rails) down with it.
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Old 09-02-2006, 07:58 PM   #12
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Ok that all about the front of your car , So why do people say don't jack an AU up from the diff

I always jacked my old XR6 VCT from the diff centre

I have heard of the IRS diff mounting bushes being damaged when jacking under the diff but then again I have seen a lot of mechanics and tyre places jack late model IRS falcons here.
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Old 09-02-2006, 08:57 PM   #13
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i put a peice of rubber or wood between the cross member and the trolley jack, this helps and also helps raise the car a bit better if you guys know what i mean...sometimes its hard to get started
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Old 09-02-2006, 09:31 PM   #14
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some mechaniks dont know any better and or dont care
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Old 10-02-2006, 02:03 AM   #15
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Originally Posted by mik
shop manual recomend a block of wood running north south,150 mm long 75 mm wide 38mm deep, with a slot going ACROSS IT 25 mm wide 20 mm from the end and 8 mm deep ,the slot goes toward the back of car, this is recomended for trolley jack support at front. ramps might be an option.
Could you please tell me what manual you got that from? If it was the Ford AU2 workshop manual then whereabouts is it written? Just curious 'cause that's exactly the sorta info I was looking for once but buggered if I could find it in the manual (but it's a big set of books to look through ).
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Old 10-02-2006, 09:01 PM   #16
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Could you please tell me what manual you got that from? If it was the Ford AU2 workshop manual then whereabouts is it written? Just curious 'cause that's exactly the sorta info I was looking for once but buggered if I could find it in the manual (but it's a big set of books to look through ).
got it from gregorys 1998-2002 (published by haynes manuals) no.274 found it invaluable steve ,almost as good as ford forums, got it at supercheap, nearly forgot only covers 6 cylander engine.
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Old 10-02-2006, 10:28 PM   #17
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got it from gregorys 1998-2002 (published by haynes manuals) no.274 found it invaluable steve ,almost as good as ford forums, got it at supercheap, nearly forgot only covers 6 cylander engine.
Me thinks I might need one of those!

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Old 12-02-2006, 08:39 PM   #18
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Typical of a Gregory's manual - POS. The reason you will NOT find this kind of information in a Ford Workshop Manual is because it says, so I've been told by a Ford Tech, DO NOT JACK VEHICLE UNDER ALLOY CROSS-MEMBER! Ford stipulate lifting the vehicle under the side jacking points ONLY.

PS - My local dealer has seen a few cracked cross-members due to people jacking under them.
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Old 13-02-2006, 08:55 PM   #19
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t3man your probably right mate ,however not many can afford three hundred odd dollars for a ford (factory manual)
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