Floor jack cup - what the hell?
Discussion
Consider this a newbie question.
I have a cheapish floor jack very similar to this
http://cimg3.ibsrv.net/cimg/www.doityourself.com/6...
Is has a nasty cup type thing as the actual lifting point.
I’ve seen a lot of floor jacks [more expensive ones] which are just flat.
What is the purpose of the cup style?
I used it yesterday with a hockey puck on top, it worked ok but the puck din’t look right sitting on top of an uneven cup.
Please tell me this cup is for delivery purposes only or something like that.
I have a cheapish floor jack very similar to this
http://cimg3.ibsrv.net/cimg/www.doityourself.com/6...
Is has a nasty cup type thing as the actual lifting point.
I’ve seen a lot of floor jacks [more expensive ones] which are just flat.
What is the purpose of the cup style?
I used it yesterday with a hockey puck on top, it worked ok but the puck din’t look right sitting on top of an uneven cup.
Please tell me this cup is for delivery purposes only or something like that.
I think the idea is that a cup lessens the likelihood of the vehicle rolling off the jack.
I'm with you though - a rubber pad is a more effective 'brake' IMO. I have a similar jack and I have trimmed down the puck to fit inside the cup. I also have shaped rubber inserts that I have made myself that fit into the cup and locate on the jacking points of various cars (including a deep slotted one for jacking on sills and a block that fits BMWs).
I'm with you though - a rubber pad is a more effective 'brake' IMO. I have a similar jack and I have trimmed down the puck to fit inside the cup. I also have shaped rubber inserts that I have made myself that fit into the cup and locate on the jacking points of various cars (including a deep slotted one for jacking on sills and a block that fits BMWs).
Edited by r11co on Wednesday 18th January 12:47
They're good if you're jacking a car up on a circular-section area, e.g. a differential casing, suspension arm etc, because they won't fall out of the cup. When using a trolley jack and getting towards the end of its reach, the horizontal forces to move the jack around are pretty significant.
If in doubt I use a block of wood/rubber on mine, but I prefer one with a claw per the OP for less stable components.
If in doubt I use a block of wood/rubber on mine, but I prefer one with a claw per the OP for less stable components.
Suggest you look on ebay & Machine Mart for pictures of trolley jacks & you'll see most have a cup shaped saddle.
Whilst it doesn't look ideal for jacking on completely flat surfaces, on curves & tubes etc it will stop the jack sliding around. If the top was completely flat there would be a high risk of slippage.
The cup on my big jack is easily removable by pulling an R-clip from the pin & lifting it off - I have a couple of specialised gearbox adapters that go in place - but I wouldn't consider using the flat top that's revealed.
Any number of puck-shaped rubbers or thick rubber sheet on ebay for under £5 delivered.
Whilst it doesn't look ideal for jacking on completely flat surfaces, on curves & tubes etc it will stop the jack sliding around. If the top was completely flat there would be a high risk of slippage.
The cup on my big jack is easily removable by pulling an R-clip from the pin & lifting it off - I have a couple of specialised gearbox adapters that go in place - but I wouldn't consider using the flat top that's revealed.
Any number of puck-shaped rubbers or thick rubber sheet on ebay for under £5 delivered.
Slightly off topic, there are rubber "adaptors" available for many cars.
I know for the BMW E9x chassis range (and perhaps it's the same for all modern BMW's) there is a keyed rubber puck which slots into the box shaped jacking points on the sill, as I bought one and it works very well.
I know for the BMW E9x chassis range (and perhaps it's the same for all modern BMW's) there is a keyed rubber puck which slots into the box shaped jacking points on the sill, as I bought one and it works very well.
f1nn said:
Slightly off topic, there are rubber "adaptors" available for many cars.
I know for the BMW E9x chassis range (and perhaps it's the same for all modern BMW's) there is a keyed rubber puck which slots into the box shaped jacking points on the sill, as I bought one and it works very well.
Good to know. I looked for something like this a few years ago and there wasn't much but overpriced hockey pucks.I know for the BMW E9x chassis range (and perhaps it's the same for all modern BMW's) there is a keyed rubber puck which slots into the box shaped jacking points on the sill, as I bought one and it works very well.
Riley Blue said:
The problem with all of those jackpads is that you will not find one that fits the mini cup on those mini jacks as in the OP. I used a guy on ebay called cav.mar1 who made a puck to fit one of these mini jacks. Got mine with a slit in it to fit on the sill jacking point.Toyoda said:
Riley Blue said:
The problem with all of those jackpads is that you will not find one that fits the mini cup on those mini jacks as in the OP. I used a guy on ebay called cav.mar1 who made a puck to fit one of these mini jacks. Got mine with a slit in it to fit on the sill jacking point.Toyoda said:
Riley Blue said:
The problem with all of those jackpads is that you will not find one that fits the mini cup on those mini jacks as in the OP. I used a guy on ebay called cav.mar1 who made a puck to fit one of these mini jacks. Got mine with a slit in it to fit on the sill jacking point.https://www.ebay.co.uk/str/trolleyjackingpads
Gassing Station | Home Mechanics | Top of Page | What's New | My Stuff