Rory's Dad Posted February 22, 2009 Posted February 22, 2009 Was doing a bit of 'spring cleaning' today and saw to my surprise that that there doesn't seem to be much sign of the rear disks being gripped by the calipers on the insides. Maybe that's why they squeal at low speeds. Outsides are smooth and polished and look as they should. Calipers are standard Sierra IIRC and the car seems to stop well nonetheless. S'pose I'll have to take them apart but what should I be looking for?? Rory's Dad Quote
KerryS Posted February 22, 2009 Posted February 22, 2009 Is this the old sliding callipers that don't, slide that is. There used to be a piston each side but the manufacturers in their infinite wisdom said it was better (as in cheaper?) to use one and let the calliper assy slide so as to apply the pad on the other side. Usually the slides get stiffer and stiffer (oerr missus) until they won't slide. Can they be cleaned so as to work again? Or am I on wrong track altogether? Quote
Leon B Posted February 22, 2009 Posted February 22, 2009 Hmmm never noticed that. The calipers were new when I bought the car so wouldnt have thought the were seized. Is it the same on both sides? The squeeling comes from the front brakes, seems most 4 pots do this as they dont have the anti rattle plates the standard M16's have. Quote
Rory's Dad Posted February 22, 2009 Author Posted February 22, 2009 Leon - yup, it's the same on both sides and I'm sure the squealing comes from the back near side - but it maybe my ears Assuming they are Sierra disks do I just get the Haynes manual out of the library and follow the instructions?? All advice welcome. Rory's Dad Quote
Leon B Posted February 22, 2009 Posted February 22, 2009 I'd just whip them off and make sure the calipers are sliding freely still. Wierd thing is the piston is on the inside, I'd have thought if anything the inside of the disc would have more wear. Strange. The calipers are standard sierra, discs are off the front of an escort mk3 I believe, sure its in the build manual. Just a thought, might be worth winding the handbrake on a bit, maybe there's too much travel?? Quote
perksy Posted February 22, 2009 Posted February 22, 2009 as Leon says it would be worth checking the condition of the sliders as they can stick sometimes Especially *if* the rubber boots/covers have split and some muck has got in Worth giving them a clean up and a spot of Copper ease to help them There's an Schematic drawing of the Rear Calipers on here CLICKY *If* You decide to check the Pistons be aware that they need to be 'Screwed /Turned' to retract them (Some folks use an Angle grinder Disc spanner for this) Got one of these meself and it works a treat CLICKY Quote
CedricTheBrave Posted February 22, 2009 Posted February 22, 2009 common on these calipers for the small tag on the back of the pads not to line up with the cut out in the piston. check that they are aligned correctly this will make them squeal and not contact the disk correctly if missaligned. hth Quote
Man On The Clapham Omnibus Posted February 23, 2009 Posted February 23, 2009 common on these calipers for the small tag on the back of the pads not to line up with the cut out in the piston. check that they are aligned correctly this will make them squeal and not contact the disk correctly if missaligned. hth That sounds more like it. As someone else said, the piston is on the inboard side so non-sliding would mean the outboard side of the disc would be untouched. Quote
KerryS Posted February 23, 2009 Posted February 23, 2009 common on these calipers for the small tag on the back of the pads not to line up with the cut out in the piston. check that they are aligned correctly this will make them squeal and not contact the disk correctly if missaligned. hth That sounds more like it. As someone else said, the piston is on the inboard side so non-sliding would mean the outboard side of the disc would be untouched. That's true, wasn't aware of this. Ignore my first post Quote
Paul Hurdsfield - Joint Manchester AO Posted February 23, 2009 Posted February 23, 2009 Leon - yup, it's the same on both sides and I'm sure the squealing comes from the back near side - but it maybe my ears Assuming they are Sierra disks do I just get the Haynes manual out of the library and follow the instructions?? All advice welcome. Rory's Dad Martin be aware that the discs used on the rear are from Ford Escort front end. ed to add: on a std setup Quote
DavidH83 Posted February 26, 2009 Posted February 26, 2009 I have just notice the same on my car. Inside of both rear discs are untouched! I also have a squeeling issue at low speeds. Should a clean up sort it? Quote
Rory's Dad Posted February 28, 2009 Author Posted February 28, 2009 Well I took the car along to our local Quickfit and they stripped everything down but didn't find a problem. Then they cleaned everything, greased the bits that need greasing, checked it again, checked the fluid level and then gave me the bill for a touch under £15!! No bad for about 45 mins work. Good value IMO and the car still stops brilliantly Rory's Dad Quote
nikpro Posted March 1, 2009 Posted March 1, 2009 Did they change the locking bolts on the calliper though? These are supposed to be replaced everytime you change the pads on a Golf rear calliper. Quote
Chasmon Posted March 3, 2009 Posted March 3, 2009 Locking bolts on the calliper, do you mean the ones holding them to the upright? Quote
CedricTheBrave Posted March 3, 2009 Posted March 3, 2009 QUOTE Did they change the locking bolts on the calliper though? These are supposed to be replaced everytime you change the pads on a Golf rear calliper. 1st post explains they are sierra calipers Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.