Tyre change

Hi, changing a tyre on my bay today I needed a jack to raise the rear of the van (obviously] and then a second jack to raise the hub and suspension arm in order to refit the tyre.
Is the hub/suspension supposed to drop or is that a symptom of failed suspension or related component. I’m just glad the puncture was on the driveway as if it had been on the road I would not have been able to change the tyre with one (bottle) jack.
Many thanks.

 

You mean you jacked the van but the tyre stayed on the ground?

 

If it’s stock height it should rest on the lower bump stop when jacked up.


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a bottle Jack is not normally high enough on its own .

 

Yes pretty much, so I used another jack the raise the hub enough to place the spare on it.

 

the bottle jack was on a decent board so should have provided enough height. I was able to get the flat off with no problems but could not fit the spare on without raising the hub. Although I’ll revisit that, what’s the lift of a stock jack?

 

I’ll have a look when I replace the spare, once the flat is repaired (valve issue, not tyre) to see if it does.

 

I have to have quite a block under mine , I carry one axle stand too so when up to full height I can slip that under fa removing wheel etc .

 

On a stock van, the rear should go up with the jack (obvs), and the rear spring plate should flop until it hits the endstop on the spring plate casting. Then the rear wheel should come off the ground. Pretty normal stuff.

Has someone been messing with your suspension?

 

With my bus I use a scissors jack on the tube to lift it first, then a bottle jack with a screw out tip to finish off so the two jacks end up sharing the weight. I have a stock jack and its lift is more like 30 or 40 cm, but it sits unloved because my jacking points used to move up without the bus moving ...

And yes unless you have horseshoe plates or hinged spring plates at the rear, the wheel should drop until the plate hits the lower stop as the bus lifts up.

 

The suspension is supposed to drop as you jack it up but if the bus has been lowered on the splines the spring plate has further downward travel before it hits the stop on the casting compared to standard height.

 

All cars as you jack the body up the wheel drops to the bottom of the suspension travel.

As the van naturally runs higher off the ground than a car you need a higher jack to get it high enough.

 

Thanks for the replies. Everything is stock, I guess I need a jack with better lift, perhaps I’ll invest in a genuine one as my jacking points are sound.
All the best

 

I'd go for a decent trolley jack myself