I thought I'd give my n/s pads and callipers a quick clean yesterday as they've been squealing. The GTV is too low slung to get my dad's trolley jack underneath it, so my usual tactic is to use a scissor jack to lift the car enough to get the trolley underneath. As this was only a ten-minute job I couldn't be bothered going round and using his jack, so I got stuck in outside my flat.
Jacked the car up and took the wheel bolts out but then struggled to get the wheel off. "Strange," I thought "I could have sworn there was daylight between the wheel and the ground." So I wound the jack up a little more and took the wheel off. A moment later I heard the rear end creaking, like it does when you let the car down. Errrrr
I looked at the jack and it had started to sink in to the tarmac
It was at that point I went nuts thinking all sorts like it was going end up sitting on the brake disc or bottom out and I wouldn't be able to jack it up to get the wheel back on
I grabbed a bunch of large rocks from the rockery and piled them up under the suspension arm and could only watch as the jack slowly sank four inches in to the tarmac and the car came to rest.
So trolley jack to the rescue. I nipped round and borrowed it and another scissor jack but there was enough clearance to get the trolley in and lift the car again. I cleaned the brake out, wheel back on then let it down. The jack left a nice lump in the ground and even the wheels of the trolley jack had sunk about a centimetre!
I haven't shat myself like that for ages. One thing's for sure: that's the last time I jack a car up on that surface on a hot day!
And here's some evidence why you should never trust a scissor jack and always work on a car supported by axle stands