27-11-17, 05:36 PM
(27-11-17, 02:56 PM)Jamieg285 link Wrote: If it makes you feel any better, I tried to do my front discs yesterday. 11 bolts fine. 1 bolt rounded out. Smacked in a slightly bigger imperial allen head socket and had a go with that, and it sheared the bolt - below the level of the wheel hub :'(
Attacked it with a drill, got the centre out and tried some bolt extracters. Got them to bite on the bolt, but it's stuck fast :'(
Drilled out out as far as I could without going into the threads, but still no joy. I've been out and bought a 6.8mm drill bit and an M8 tap to try as a last resort.
The PR4s are a toughy to fit. I've had 2 and neither wanted to seal the 'normal' way. The trick I used (borrowed from a fitter) is to fire a burst of un-restricted compressed air down the bead rather than through the valve. There's a proper tool to do it (Bead Cheater?), but that's expensive, so I just hooked up a piece of hose pipe to the compressor outlet and it worked just as well.
The bolt heads are so soft it's a joke, but I learned from before to make sure I have spares before even attempting to remove any.
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