Re: Replacing 156 Brake pads
OK. Two basic questions. I have really struggled to retract the rear pistons on a '99 GTV 2 litre.
1. Where to get a rear caliper piston retracting tool that will work?
2. Why isn't the piston retracting when I turn it several turns using an improvised tool?
I have done this job on multiple such installations and never failed as with the GTV, never failed at all before.
First off the pads from German and Swedish would not fit, their metal back plate is too big and the inner one fouls the caliper mounting frame before they are home, had to file those to size. Then I couldn't retract the piston using a spanner in a mole wrench - as I have done in all other such cases. I can turn the piston OK, have managed 4 or 5 turns - but it doesn't seem to move in or out at all, I measured the position with a vernier caliper.
While I know I need a tool I don't understand why the piston doesn't move in or out after several rotations.
BTW I don't know about Alfas but on my SAAB 9000 Aero bleeding the back brakes is a real high tech game. You can't do it by just pumping the brake, nothing happen, it remains hard even with the bleed valve open. You have to let the electronics do it for you, by turning on the ignition and depressing the brake pedal.
READ THE MANUAL!
I'm a bit alarmed by the lack of focus on detail and the advice given by people who are clearly logically challenged and confuse opinion with informed knowledge. Lucky to be alive and/or not have killed anyone else. One guy didn't even read the thread before suggestiung using a G clamp to retract the pistons ... not sure that sort of mail shouldn't be blocked and the user banned as dangerous
One thing I know for sure. The manual is your friend.
And finally - my mistake - ALWAYS bed the shoes carefully after fitting and allow a good few miles before driving normally. And, contrary to all the ******** , if you are doing both fronts its not criminal to change one then the other. At least you still have one good front brake while you bed down the new one and you won't have happen what did to me.. I have a horrid memory of being 4 up on the M20 with new front discs and pads which I had carefully bedded and having to stop quickly from slightly illegal motorway speed. After a bit of braking it just carried on again in spite of 100 lbs plus push and a hard pedal, presumably as the high spots got very hot and just faded. Good job there was somewhere to go, well actually good job I was able to make somewhere to go while cadence braking kinda with the handbrake on and hitting the gears as soon as I could (FWD 2.7 Vitesse)..... lesson go carefully on new brakes, do one at a time if you can, in reasonably quick succession, its more dangerous to do both as THEY tell you, particularly on worn discs with ridges and stuff! Better one full power front brake and a pull to one side than two very weak front brakes, particularly with ABS to keep the more loaded break from locking.