Thread: New Jack For Discovery 4

I'm still hanging out for these to come on the market - Quaddro Technologies - WORLD'S SAFEST 4x4 Off-Road Vehicle Recovery Mechanism. - but getting info out of them is like pulling teeth ... I've got my fingers crossed ...
cheers

Originally Posted by oldsalt

I'm still hanging out for these to come on the market - Quaddro Technologies - WORLD'S SAFEST 4x4 Off-Road Vehicle Recovery Mechanism. - but getting info out of them is like pulling teeth ... I've got my fingers crossed ...
cheers

Impressive lift capacity.

However I have a dislike of sissor jacks for off road use because the screw mechanism is prone to getting clogged with sand and mud. My OEM sissor jack virtually seized up when I got bogged in sand last year on our Cape York trip.

Luckily I had a back up bottle jack, which is much more resistant to sand and mud.

Hi d3syd,
what size - and brand - of bottle jack do you use ?
I'm sure others will be interested as well as me.... and where do you store it ?
cheers

I understand that the same jack is used on the Fully Fat Range Rovers and some have failed and dropped the car. The Disco series 1 jack is pretty good but does it have the range to lift a D3/4, RRS? I have a Fram for the 101 which has the lift but is still a bit too tall for a lowered RRS with a flat.

Garry

The Clarke 3 ton jpg is of a trolley jack I found on Disco3. I have a similar no name China made trolley jack, but rated at 2 ton.

It works well on a dry flat surface to lift a single wheel to get maybe an inch of clearance to change a tyre by lifting somewhere under the A arm.
I would regard the jack as too weak to lift on the frame as it would get "stretched out" and warp.

The 6 ton bottle jack is what I regard as a good size for lifting at the frame - not too tall that it will not go under and tall enough that you will get a bit of lift and take the weight off of a wheel. The air springs of the 3 have too much articulation however such that one could actually lift a wheel clear so a tyre could be changed.

As such, I have a second bottle jack, a baby 2 ton unit to place under a wheel A arm to lift the tyre assembly - or the little trolley jack could be used. Also when the 6 ton is full up and the 3 lifted, you will see that the jack body has tipped inwards - nothing is perfect. That is why a shop trolley jack has wheels, so it can shift with the vehicle and hopefully remain under the centre of lift.

The two stage bottle jack can be interesting if you can find one; note the jpg is of a 2 ton and some do not have the screw top so total lift may be no more than a single stage.

The 3 ton shop trolley jack with the lifting pin insert is what I use around the house when changing tyres.

Originally Posted by oldsalt

Hi d3syd,
what size - and brand - of bottle jack do you use ?
I'm sure others will be interested as well as me.... and where do you store it ?
cheers

It is just a cheap one from Super Cheap Auto. Made in Japan though, so quality is pretty good. The brand is "Masada" and it is rated for 2 tonnes. They had a few others with different lift capacities in the store.

I store it in plastic carry case that came with my ARB compressor which lives in the back of my car.

I find with air suspension, you virtually need 2 jacks all the time because you need to raise the car up a long way to get a wheel off the ground as the air suspension keeps dropping the wheel while the car is going up. So what I do is stick the bottle jack under the suspension arm and jack it up as well - makes things a lot easier.

When at home I use the hydraulic jack from my old RRC under the bottom shock mount to lift the wheel. The jack has a curved top so can't slip out. I don't carry that jack in the vehicle though because it leaks.

Originally Posted by d3syd

I find with air suspension, you virtually need 2 jacks all the time because you need to raise the car up a long way to get a wheel off the ground as the air suspension keeps dropping the wheel while the car is going up. So what I do is stick the bottle jack under the suspension arm and jack it up as well - makes things a lot easier.

I have experienced the same issue and the higher you jack the car the more it tries to find terrafirma. As I rotate my own tyres this means stands and jacks are very dangerous.

So I noted a few hierogliphics on the jack and it suggested raising the suspension first and using the sissor jack at specific points. I have used this to fix a puncture with success and am yet to try it with a rotation. I will try the stands under the jacking points next time and if this wors then this will be safer than trying to get grip on the lower arm.

Cheers PK