Floor jack failed
Yesterday, 03:51 PM
#1
Junior Member
Thread Starter
Floor jack failed
This was a bit of a shock. After we picked up a decent size nail, I tried to replace the wheel with the spare tire.
However, while trying to use the never-used floor jack, the thread just ripped and I could not lift the vehicle.
I know these are probably not the best quality and I would not use them at home, but not even getting a single use out of it and basically left you stranded, it a bit bizarre.
Has anybody else had a similar experience with those?
Somewhat related question: Are the spare wheels different in size for those vehicles that come standard with 22 or 23 inch wheel over those that come with 20 inch wheels?
And does anybody know what the maximum tire rolling radius difference can be for replacing one vs. all four tires?
Thanks!
However, while trying to use the never-used floor jack, the thread just ripped and I could not lift the vehicle.
I know these are probably not the best quality and I would not use them at home, but not even getting a single use out of it and basically left you stranded, it a bit bizarre.
Has anybody else had a similar experience with those?
Somewhat related question: Are the spare wheels different in size for those vehicles that come standard with 22 or 23 inch wheel over those that come with 20 inch wheels?
And does anybody know what the maximum tire rolling radius difference can be for replacing one vs. all four tires?
Thanks!
Yesterday, 04:50 PM
#2
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1922 Ford Model T / no OBD
Can you post a picture?
I've been using car jacks a lot in the past and never had them failing, even on cheap cars like Fiat or Skoda.
As for spare size, read it. Most of modern cars do have donut spare, when lot of wheels are changed by owners to different sizes.
Donuts are limited to 50 mph, what can be annoying on long drive.
Still check the pressure, as that is often overlooked.
For matching the tires, you need to find their rpm. Should not replace singe tire with different model. Do it at least in pairs/axles.
Forum experience says you can mix the tires with up to 3% difference in rpm, before red lights will start illuminate.
I've been using car jacks a lot in the past and never had them failing, even on cheap cars like Fiat or Skoda.
As for spare size, read it. Most of modern cars do have donut spare, when lot of wheels are changed by owners to different sizes.
Donuts are limited to 50 mph, what can be annoying on long drive.
Still check the pressure, as that is often overlooked.
For matching the tires, you need to find their rpm. Should not replace singe tire with different model. Do it at least in pairs/axles.
Forum experience says you can mix the tires with up to 3% difference in rpm, before red lights will start illuminate.
Last edited by kajtek1; Yesterday at 04:54 PM.
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steh-fan (Yesterday)
Yesterday, 05:23 PM
#3
Junior Member
Thread Starter
Can you post a picture?
I've been using car jacks a lot in the past and never had them failing, even on cheap cars like Fiat or Skoda.
As for spare size, read it. Most of modern cars do have donut spare, when lot of wheels are changed by owners to different sizes.
Donuts are limited to 50 mph, what can be annoying on long drive.
Still check the pressure, as that is often overlooked.
For matching the tires, you need to find their rpm. Should not replace singe tire with different model. Do it at least in pairs/axles.
Forum experience says you can mix the tires with up to 3% difference in rpm, before red lights will start illuminate.
I've been using car jacks a lot in the past and never had them failing, even on cheap cars like Fiat or Skoda.
As for spare size, read it. Most of modern cars do have donut spare, when lot of wheels are changed by owners to different sizes.
Donuts are limited to 50 mph, what can be annoying on long drive.
Still check the pressure, as that is often overlooked.
For matching the tires, you need to find their rpm. Should not replace singe tire with different model. Do it at least in pairs/axles.
Forum experience says you can mix the tires with up to 3% difference in rpm, before red lights will start illuminate.
Thanks for your fast and detailed reply.
I agree, they shouldn't fail.
This is the original Mercedes one (166 580 01 18) and it stripped the thread in the bushing.
As for the donut, it says T165/90D19 (or rim part number A 164 400 01 02), which obviously is a 19 inch, but I'm a bit doubtful it's a good idea to run it with other 22 inch wheels.
Of course, I'll replace with same manufacturer and model.
Probably check how much difference there is (they are only about one year old), but I know that each manufacturer has they own specifications/ limits.
Thanks again!
Yesterday, 06:18 PM
#5
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Yesterday, 11:49 PM
#6
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1922 Ford Model T / no OBD
Looks like it stripped at the end of the screw, means you had heavy load on it at low raise. That puts max stress on the screw. Still not suppose to fail.
Call MB USA at 1 800 FOR MERC.
This is something they should hear about.
Call MB USA at 1 800 FOR MERC.
This is something they should hear about.
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steh-fan (Yesterday)
Yesterday, 11:53 PM
#7
Junior Member
Thread Starter
I know, those GLs are heavy...
As you said, the factory-included jacks should be able to handle those loads.
As you said, the factory-included jacks should be able to handle those loads.
