Red Rallye resto

[Ben_w]

Deox-C is great for doing lots of small parts like this. Electroysis is better for bigger stuff although I've never heard it being an issue with high tensile stuff? Anyway, I'd say the Deox-C has done its job...



Next job for the Deox-C, the rear disc backing plates. I've not seen a pair of these last any kind of distance and usually, by the time people get to them, they are properly rotten and come off the car in a number of pieces. Not sure why they suffer so badly, I guess that being at the rear of the car won't help but perhaps made from cheap metal etc. A new pair from Peugeot/Citroen is circa £45 so I'll see if I can clean these up to an acceptable state first.

The worst bit about removing them is the fact they are fitted to the hub using torx head bolts, which are usually as rusty and crusty as everything else. They are a real pain and I still don't understand why Peugeot chose these over a hex head bolt for a lot of the external fittings. Still, they did.

The right size torx bit in an extension bar, hammered into the bolt head, along with the use of an impact gun made short, clean work of removing them. Only one proved stubborn and the head of that one is a little chewed up. I will probably end up replacing all of them, although at £2.09 each from Peugeot, I won't be going there for them! They appear to be, from service box, an M6 bolt with a 100-16 thread size. Does that mean anything to anyone?

I've Googled it but can't find much info. I'm not much up on screw threads. There are plenty of stainless steel M6 bolts available with a variety of heads (an M6 hex head is looking favourite at the moment) but stuck on the thread. Coarse/fine/metric/Imperial...I've no idea!

Anyhow, the pics because that's what you came here for!:

Backing plates removes. Pretty rusty. One on the left has been attacked with the grinder and wire brush, one on the right hadn't at this point, although both have now been and are happily soaking away.



The rubbish bolts I mentioned..





I shall pull them out a little later today and see what's what.