Vectra front disc pad change

deepseadiver08 · Post by **deepseadiver08** » Mon Sep 22, 2008 4:05 pm

Hi,
Using my Haynes manual - it says to unscrew the guide bolts from the caliper ---------- is this a hex imperial screw. Metric sizes don't fit.

Thanks
Terry

Post by **ultimatehandyman** » Mon Sep 22, 2008 4:55 pm

I used to have a corsa based van and I'm sure it was metric.

Have you tried tapping the hex head socket/key home gently with a hammer, sometimes they are difficult to get in if residue has built up on the edges. Some WD40 may also help to clean out the hole.

deepseadiver08 · Post by **deepseadiver08** » Mon Sep 22, 2008 5:09 pm

Thanks for the prompt reply --

I have a good selection of allen keys and the nearest size to fit - spins inside the capped head -- I'll try tapping the allen screw head tomorrow, I've got WD40 to assist.

Thanks again

Terry

Post by **ultimatehandyman** » Mon Sep 22, 2008 5:50 pm

Good luck with it.

You are sure that the bolts are not torx heads aren't you?

I vaguely remember coming accross some torx head bolts on a vehicle, but can not remember which vehicle they were on

Foggy · Post by **Foggy** » Mon Sep 22, 2008 6:31 pm

Torx bolts mainly on fords

think its 7mm hex key ,you wont have one if you just have an ordinary set ,7mm doesnt come as standard

you prob have a 6mm and 8mm

think halfords sell a 7mm hex wrench socket ,gives you a bit more leverage

Hitch · Post by **Hitch** » Mon Sep 22, 2008 7:09 pm

I think quite a few of them are 7mm as mentioned.

deepseadiver08 · Post by **deepseadiver08** » Tue Sep 23, 2008 2:32 pm

Thanks folks.

The screw looks as though it is 7 mm - and you are right -- I haven't got one. however I'll get one .

Thanks again

Terry

Foggy · Post by **Foggy** » Tue Sep 23, 2008 2:55 pm