Car jacks, will they work underwater?

[CraigW]

yes its an odd question I appreciate..

[dirty doug]

So many questions come to mind, where to start..........

[firman]

Theoretical question or practical?

[joebongo]

The jack will work but the fluid (water) surrounding the car would also affect stability, being much thicker than air. So if it's in a moving body of water I'd expect it to be more unstable and wouldn't recommend sub-aqua oil changes or maintenance work.

[Petrolhead_Rich]

I don't understand what wouldn't work?



Even a hydraulic jack would work, there sealed units!



Unless your talking about one of these?



That may not be entirely reliable!!

[CraigW]

dirty doug said:

So many questions come to mind, where to start..........

Ha yes, i realise, relates to my thread here..

http://www.pistonheads.com/gassing/topic.asp?h=0&a... a shed on 4 jacks to raise and lower it..

[rhinochopig]

High Lift Jacks would be your best bet. But, you'd need to build some kind of frame for them to sit in as they wouldn't be stable enough on their own - balanced on four it would likely topple. That said, you'd need to do the same for other types too.

[300bhp/ton]

CraigW said:

yes its an odd question I appreciate..

Depends on the jacks, and how long they are likely to be submerged.

As in rust may well seize them. Some jacks are hydrolic, so water may ingress and deminish performance.

[teen_cerbera]

Cant you put the shed in "runners" then use buoyancy aids to "float" the shed as the flood happens, at least you wont have to worry about jacking it up etc then, and it would look after its self when you wernt there etc? Just a thought...

[CraigW]

its on grass but underneath each of the concrete blocks its currently sat on there is 20mm concrete base too

[louismchuge]

teen_cerbera said:

Cant you put the shed in "runners" then use buoyancy aids to "float" the shed as the flood happens, at least you wont have to worry about jacking it up etc then, and it would look after its self when you wernt there etc? Just a thought...

Noah, is that you?

[Thorburn]

Sounds a good idea? Stick a metal upright on each corner, concreted into the ground, to keep it upright and in position, and an inflatable surround?

I guess the main problem would be the weight of the structure plus its contents means you'd need a bit more than a re-purposed rubber dingy to lift it?

[teen_cerbera]

louismchuge said:

teen_cerbera said:

Cant you put the shed in "runners" then use buoyancy aids to "float" the shed as the flood happens, at least you wont have to worry about jacking it up etc then, and it would look after its self when you wernt there etc? Just a thought...

Noah, is that you?

HAHAH I like that!!

I work around water alot of the time and it seems a bit more viable than jacking a shed up, Probably can be done alot cheaper than jacks as well. I would manufacture a false floor in the shed, fill it with expanding foam and create a "pontoon shed", as I said I would recommend runners though, unless you dont mind knocking next door and asking "My shed has floated in to your garden again, can i recover it please?".

[rhinochopig]

The flotation idea would be far too complex. You'd need professional lifting bags, and some mechanism for inflating them - big big money.

OP, you also need to strengthen the floor of the shed as it will not support the weight of the typical crap that people put in them.

[CraigW]

yup already strengthened.

[teen_cerbera]

rhinochopig said:

The flotation idea would be far too complex. You'd need professional lifting bags, and some mechanism for inflating them - big big money.

OP, you also need to strengthen the floor of the shed as it will not support the weight of the typical crap that people put in them.

Trust me, you dont, its a garden shed

As suggested, a false floor built to a suitable size and then filled with floating foam should see you fine. We use this technique when repairing Marker buoys and some of them are a few tonne and deal with very rough tidal waters. External buoys could be added if needed.

What dimension is the shed? What are the contents, weight wise?

[williamp]

how about using one of those car exhaust inflated bags? Sjhould be big enough and strong enough, and if you can park a car close by use this exhaust to litf the shed.

A photo of this in action qwould undoubetble be the christmas special "SOTW"!!!!

[Petrolhead_Rich]

metal barrels on a steel frame, shed ontop of steel frame, steps to shed, job done!

small anchor rope to stop it floating away!

[CraigW]

its 4m x 3m, 2.4m high, has nothing of any signicant weight, bed, chest of drawers, some boxes with pictures etc but really not many, the walls are 2 x 45mm board with foam insulation between.

[Petrolhead_Rich]

williamp said:

A photo of this in action qwould undoubetble be the christmas special "SOTW"!!!!

Shed On The Water?