xantia rescue

[Scottculli]

Ah that link was a great find it showed all the compatibilitys it looks as though the v6 is the same as your 2.0 hdi, with those two saying it is the 60mm piston im gonna go ahead and order those. Thanks for the help Skull

[Scottculli]

Hey i just have a quick question the torx bolts that attach the calliper rail to the hub,they are extremely tight,and the torx face is sheared i was wondering is it safe to heat the calliper carrier to expand it, but if i do this will i damage it by warping it?

[admiral51]

Hey i just have a quick question the torx bolts that attach the calliper rail to the hub,they are extremely tight,and the torx face is sheared i was wondering is it safe to heat the calliper carrier to expand it, but if i do this will i damage it by warping it?

Assuming that you are going to change both disc and pads then i would soak the bolt in Plus Gas and if i understand correctly the Torx head of the bolt is rounded and will not accept the correct size Torx bit. I would use a slightly larger Torx bit and tap (hammer) it in to get a grip and take it very slowly by tightening/loosening to try and break the grip.

Colin

[white exec]

Agree. PlusGas, on both sides of the hub plate, with overnight soak, is the way to go.

[Scottculli]

Cheers Colin, I've soaked the bolt in penetrating oil over night and hit it with a hammer on the top of the bolt head to dislodge the rust connection but not much is happening, ill give the bigger torx bit a go and go from there.

[Hell Razor5543]

Try tightening them slightly first. If there is any rust in the threads this can allow it to fall away. Then it does not get wedged in the threads, causing them to bind.

[quintet]

Hey i just have a quick question the torx bolts that attach the calliper rail to the hub,they are extremely tight,and the torx face is sheared i was wondering is it safe to heat the calliper carrier to expand it, but if i do this will i damage it by warping it?

You could try brake fluid as it makes a good penetrating fluid but then not many of us xantia owners happen to have brake fluid lying around.

[Scottculli]

Hey i just have a quick question the torx bolts that attach the calliper rail to the hub,they are extremely tight,and the torx face is sheared i was wondering is it safe to heat the calliper carrier to expand it, but if i do this will i damage it by warping it?

You could try brake fluid as it makes a good penetrating fluid but then not many of us xantia owners happen to have brake fluid lying around.

Yeh i wish i had some, but there ain’t much of that around here as of now

[admiral51]

If you get the larger size Torx bit to bite i fully agree with the advice to tighten/release in small steps maybe 1/3rd of a turn at most until you get to a point where it feels safe to go to 1 quarter turn.
From experience tightening a bolt before undoing does help as it breaks the seal etc

Colin

[Scottculli]

If you get the larger size Torx bit to bite i fully agree with the advice to tighten/release in small steps maybe 1/3rd of a turn at most until you get to a point where it feels safe to go to 1 quarter turn.
From experience tightening a bolt before undoing does help as it breaks the seal etc

Colin

Yeh im gonna give that a go im currently trying to fit the t55 in and try it fromthere, out of curiosity is it a bad idea to use a tourch, just it feels like would be easiest option?

[admiral51]

If the head is rounded/sheared then until you get something to bite into the head nothing will work, yes heat will help but only if you have something to bite/grip ?
**Edit looks like you may need some new bolts if you get the old ones removed, sure someone will have the details **

Colin

[white exec]

A slightly oversized Torx might go in, hopefully.
Torx is hexagonal, so you could also try a length of hex key (hammered in) in there too, with a ratchet/wrench on its end.
After PlusGas, clouting the head a few times could help, and maybe a cold chisel dug into its side in the unscrew direction.
When out, a new bolt and copperslip a must.

[xantia_v6]

Those bolts are very tight, and I think that they are a hard grade of steel, so forcing in a bigger torx bit may not work.. I don't think that it would be a good idea to use heat unless you are intending to replace the calliper and wheel bearing.

I think my first choice would be to weld a nut (securely) onto the head of the bolt and use the nut to loosen the bolt.
My second choice would be to drill out or grind off the head of the bolt, being careful not to gouge the face on the calliper.

[Hell Razor5543]

I think the bolts are high tensile steel. Snapping one is not good news. Slow and steady is the way. Tighten slightly (to crack off any rust), then loosen a bit. As soon as it starts to bind, tighten again a touch, then loosen a bit more.

[Scottculli]

Thanks for all the ideas im just weighing up my options, xantia_v6 I definitely agree with you on the hardend steel idea, trying to hammer on a bigger torx bit was a real challenge, im gonna leave the torch idea and go with a bigger torx or hex bit, I'm definitely gonna need some new bolts so if you've got any information on that it'd be much appreciated, white exec i like the coal chisel idea but i worry that without the constant tension i might snap the bolt. I feel the perfect idea would be welding but i dont have a mig welder, but if any more ideas come feel free to let me know.
Thanks Scott.