Using a hydraulic floor jack
07-12-2008, 03:26 PM
#21
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
RE: Using a hydraulic floor jack
ORIGINAL: GidyupGo
BS. The same force ..ie...weight of the car is on that same area when the car is on the ground.
ORIGINAL: Dragon Stang
This is exactly what I am talking about. Its not just about stressing the diff, or bending the cover. You have to look beyond the immediate area.
Here, read this:
Okay, here’s a little exercise I like to use when doing training and someone asks me if it’s okay to jack a car from under the differential carrier i.e. “pumpkin”.
Pretend your head is the pumpkin. Your body is the jack. Now, hold your arms out horizontal from your sides. Now, have someone place some weighted objects in each hand and see what happens. Hold it for a bit and you will get the message. Now, before tossing the weights off, have two friends place their shoulders under your out stretched hands. What do you feel? Relief? Now, look at your rear axle with all this in mind. Now put two 2x4s that reach to the ground under your outstretched arms near the ends like where the springs as located. Any easier to hold up the weights now? Exactly.
ORIGINAL: CliffyDeuce
There's a note in the manual to not jack on the differential, but I think it may be OK as long as you pad it and look carefully at what you're jacking on - think about where the stresses are going and make sure you're jacking on a flat area (not stressing the cover, etc).
There's a note in the manual to not jack on the differential, but I think it may be OK as long as you pad it and look carefully at what you're jacking on - think about where the stresses are going and make sure you're jacking on a flat area (not stressing the cover, etc).
Here, read this:
Okay, here’s a little exercise I like to use when doing training and someone asks me if it’s okay to jack a car from under the differential carrier i.e. “pumpkin”.
Pretend your head is the pumpkin. Your body is the jack. Now, hold your arms out horizontal from your sides. Now, have someone place some weighted objects in each hand and see what happens. Hold it for a bit and you will get the message. Now, before tossing the weights off, have two friends place their shoulders under your out stretched hands. What do you feel? Relief? Now, look at your rear axle with all this in mind. Now put two 2x4s that reach to the ground under your outstretched arms near the ends like where the springs as located. Any easier to hold up the weights now? Exactly.
There is noweight of the vehicle on the pumpkinwhen the
vehicle is on the ground. The force is transmitted down from
the springs and out to the wheel hubs. The springs are on
the ends of the axle tubes, not on the center of the axle
where the pumpkin is.
BS.
07-12-2008, 03:35 PM
#23
S197 Section Modder-ator
Join Date: Sep 2007
Location: Orlando FL
Posts: 13,373
RE: Using a hydraulic floor jack
ORIGINAL: rojizostang
okay, maybe i need to dig a pit in my garage.....seriously.....
okay, maybe i need to dig a pit in my garage.....seriously.....
How are you gonna do brakes in a pit without some kind of jack?
Just messin' with you...
07-12-2008, 03:38 PM
#24
2nd Gear Member
Join Date: Jul 2007
Location:
Posts: 273
RE: Using a hydraulic floor jack
ORIGINAL: pascal
Back to square one son.
How are you gonna do brakes in a pit without some kind of jack?
Just messin' with you...
ORIGINAL: rojizostang
okay, maybe i need to dig a pit in my garage.....seriously.....
okay, maybe i need to dig a pit in my garage.....seriously.....
How are you gonna do brakes in a pit without some kind of jack?
Just messin' with you...
07-12-2008, 03:55 PM
#26
2nd Gear Member
Join Date: Jul 2007
Location:
Posts: 273
RE: Using a hydraulic floor jack
ORIGINAL: pascal
Well, you're someone's son.
Well, you're someone's son.
aw heck no, i'm spending it on the car, DADDY! da me dinero!
07-12-2008, 04:30 PM
#27
5th Gear Member
Join Date: Apr 2007
Location: The High Country
Posts: 3,547
RE: Using a hydraulic floor jack
ORIGINAL: 157db
BS.
There is noweight of the vehicle on the pumpkinwhen the
vehicle is on the ground. The force is transmitted down from
the springs and out to the wheel hubs. The springs are on
the ends of the axle tubes, not on the center of the axle
where the pumpkin is.
BS.
ORIGINAL: GidyupGo
BS. The same force ..ie...weight of the car is on that same area when the car is on the ground.
ORIGINAL: Dragon Stang
This is exactly what I am talking about. Its not just about stressing the diff, or bending the cover. You have to look beyond the immediate area.
Here, read this:
Okay, here’s a little exercise I like to use when doing training and someone asks me if it’s okay to jack a car from under the differential carrier i.e. “pumpkin”.
Pretend your head is the pumpkin. Your body is the jack. Now, hold your arms out horizontal from your sides. Now, have someone place some weighted objects in each hand and see what happens. Hold it for a bit and you will get the message. Now, before tossing the weights off, have two friends place their shoulders under your out stretched hands. What do you feel? Relief? Now, look at your rear axle with all this in mind. Now put two 2x4s that reach to the ground under your outstretched arms near the ends like where the springs as located. Any easier to hold up the weights now? Exactly.
ORIGINAL: CliffyDeuce
There's a note in the manual to not jack on the differential, but I think it may be OK as long as you pad it and look carefully at what you're jacking on - think about where the stresses are going and make sure you're jacking on a flat area (not stressing the cover, etc).
There's a note in the manual to not jack on the differential, but I think it may be OK as long as you pad it and look carefully at what you're jacking on - think about where the stresses are going and make sure you're jacking on a flat area (not stressing the cover, etc).
Here, read this:
Okay, here’s a little exercise I like to use when doing training and someone asks me if it’s okay to jack a car from under the differential carrier i.e. “pumpkin”.
Pretend your head is the pumpkin. Your body is the jack. Now, hold your arms out horizontal from your sides. Now, have someone place some weighted objects in each hand and see what happens. Hold it for a bit and you will get the message. Now, before tossing the weights off, have two friends place their shoulders under your out stretched hands. What do you feel? Relief? Now, look at your rear axle with all this in mind. Now put two 2x4s that reach to the ground under your outstretched arms near the ends like where the springs as located. Any easier to hold up the weights now? Exactly.
There is noweight of the vehicle on the pumpkinwhen the
vehicle is on the ground. The force is transmitted down from
the springs and out to the wheel hubs. The springs are on
the ends of the axle tubes, not on the center of the axle
where the pumpkin is.
BS.
Double BS my ***! I was referring to the weight at the conection point of the axle tubes to the pumpkin.
07-12-2008, 05:57 PM
#28
3rd Gear Member
Join Date: Sep 2007
Location: Eagle, Idaho
Posts: 578
RE: Using a hydraulic floor jack
ORIGINAL: pascal
I tell you, even with a lift, it's border line when you're lowered...
I had a FR500C on my lift and I had to jack it up so the 4 lift pads would go under there[:@].
Only then, I was able to lift it.
I know it's pure breed race car but I have customer with DD lower than that.[8D]
I tell you, even with a lift, it's border line when you're lowered...
I had a FR500C on my lift and I had to jack it up so the 4 lift pads would go under there[:@].
Only then, I was able to lift it.
I know it's pure breed race car but I have customer with DD lower than that.[8D]
Actually, the service manual clearly shows the lift points when using a lift or floor jack. I have it in printed form but not electronic or I would post the diagram.
07-12-2008, 07:16 PM
#29
5th Gear Member
Join Date: Apr 2007
Location: The High Country
Posts: 3,547
RE: Using a hydraulic floor jack
ORIGINAL: cavediver
Okay, an easy way to answer the OP's question: pascal, where did the 4 lift pads go when you raised the FR500C (or any other Mustang)? That is the point where you should use to lift the Mustang from with a floor jack. Then put a jack stand under the axle tube on that side, lower the jack and then lift the other side and then place a jack stand under that side. Now you have lifted you Mustang, it is safely supported and everyone on this thread is happy (I think).
Actually, the service manual clearly shows the lift points when using a lift or floor jack. I have it in printed form but not electronic or I would post the diagram.
ORIGINAL: pascal
I tell you, even with a lift, it's border line when you're lowered...
I had a FR500C on my lift and I had to jack it up so the 4 lift pads would go under there[:@].
Only then, I was able to lift it.
I know it's pure breed race car but I have customer with DD lower than that.[8D]
I tell you, even with a lift, it's border line when you're lowered...
I had a FR500C on my lift and I had to jack it up so the 4 lift pads would go under there[:@].
Only then, I was able to lift it.
I know it's pure breed race car but I have customer with DD lower than that.[8D]
Actually, the service manual clearly shows the lift points when using a lift or floor jack. I have it in printed form but not electronic or I would post the diagram.
That takes car of the 3rd member housing maybe getting squashed, but doesn't address the fools that thought the axle would get bent.
07-12-2008, 07:22 PM
#30
1st Gear Member
Join Date: Mar 2006
Location:
Posts: 90
RE: Using a hydraulic floor jack
My 06 Mustang Factory Workshop Manual only shows the factory hole area (same as where the factory jack goes) for the appropriate jacking and lifting points. It does not show the axle tubes, cross members or anything else (which I thought was strange).