apoc_reg Posted January 21, 2004 Share Posted January 21, 2004 On my non turbo supra which has GS300 brakes for some reason (as standard) While fitting my new green stuff pads (front) i managed to press the brake a few times (oops) and one of the caliper pistons has come out over an inch. It doesnt seem to push back in (or move at all for that matter) even with a G clamp. Any ideas? the caliper is still attached to the car. U may have gathered im no mechanic!! Cheers for any help u can offer! Link to comment Share on other sites More sharing options...
Roy Posted January 21, 2004 Share Posted January 21, 2004 sori mate for the slight hijack but does anyone know if gs300 brakes are different than the stock UK brakes ? any idea on sizes etc ? thanks .. Link to comment Share on other sites More sharing options...
Supra ST Myster Posted January 21, 2004 Share Posted January 21, 2004 i know this may sound silly but have you tried if they screw back in as apose in pushing back in as these are a different type of brake, as when i had my integra type r i had a similar problem in pushing the piston back in even with a g clamp and all sorts, rang up honda and they said they screw in, so tried that and yep they went back in!! never heard of this! Link to comment Share on other sites More sharing options...
dude Posted January 21, 2004 Share Posted January 21, 2004 Its come right out of its housing , you will have to remove the caliper and making sure its dead straight try and reseat it back into its bore , make sure you dont damage the seal as the caliper will then leak Guess right about now you are wishing you let that mechanic do the job !!!!! Matt B are you watching this !!! Dude:flame Dev Link to comment Share on other sites More sharing options...
Steve Cargill Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by Roy sori mate for the slight hijack but does anyone know if gs300 brakes are different than the stock UK brakes ? any idea on sizes etc ? thanks .. I had a look at this last year. The MK 2 GS range front brakes look just like stock J spec brakes. I didn't measure them and have no idea about piston sizes either. I think the pads are the same size but a different material. Nothing like UK Supra brakes. Link to comment Share on other sites More sharing options...
dude Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by Steve Cargill I had a look at this last year. The MK 2 GS range front brakes look just like stock J spec brakes. I didn't measure them and have no idea about piston sizes either. I think the pads are the same size but a different material. Nothing like UK Supra brakes. Push in or screw in though ???? dude:flame Dev Link to comment Share on other sites More sharing options...
Roy Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by Steve Cargill I had a look at this last year. The MK 2 GS range front brakes look just like stock J spec brakes. I didn't measure them and have no idea about piston sizes either. I think the pads are the same size but a different material. Nothing like UK Supra brakes. thank you steve. Link to comment Share on other sites More sharing options...
dude Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by Roy thank you steve. Thank you for what big boy ???? did steve just send a midnite curry round for ya ????? Dude:flame Dev Link to comment Share on other sites More sharing options...
Roy Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by dude Thank you for what big boy ???? did steve just send a midnite curry round for ya ????? Dude:flame Dev nnnooo - just thanked him for his input on the brakes. don't you have to be somewhere baiting a UK spec owner or something ? Link to comment Share on other sites More sharing options...
dude Posted January 21, 2004 Share Posted January 21, 2004 Originally posted by Roy nnnooo - just thanked him for his input on the brakes. don't you have to be somewhere baiting a UK spec owner or something ? cant really find any that are a challenge anymore Roy , its like picking a fight with a kid you know your gonna win so whats the point of starting Dude:flame Dev Link to comment Share on other sites More sharing options...
Rob Posted January 22, 2004 Share Posted January 22, 2004 Make sure you take the cap off the reservoir. Link to comment Share on other sites More sharing options...
Steve Cargill Posted January 22, 2004 Share Posted January 22, 2004 Originally posted by dude Push in or screw in though ???? dude:flame Dev Don't know about the brakes, but I'll try those two methods when I get home tonight :D That was apoc_reg's question, not Roys. Link to comment Share on other sites More sharing options...
dangerous brain Posted January 25, 2004 Share Posted January 25, 2004 When I had the pads replaced on mine when I got it (N/A J-spec) the guy that did them said they were the same brakes as on a lexus. Spoke to steve W2 at soton meet this month and he said that these were the typical jap brakes. As far as screw or push is concerned my honda accord coupe brakes were screw backs and had big slots cut in the face of the piston to facilitate piston manual return. Take the caliper off- should only be a couple of bolts usually allen heads. Be carefull not to crush damage the pipe when you do this by twisting it. Take the pads back off and look see if there are slots cut in the face of the piston. Also check to see if the piston appears to be sitting straight inside the housing. If it isn't I would suggest you get a caliper servicing kit and replace the seals in case you have nicked the seal. You could always at this point take the calipers off clean them up and paint them (looks uber cool). One other thing did you replace the pads on both sides and have you got the problem on both sides? If one side pushed in and the other side wont then its probably not a screw back type! Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 25, 2004 Share Posted January 25, 2004 Originally posted by dude Push in or screw in though ???? dude:flame Dev They just push in, but if the pistons cocked over in its bore it will jam up, maybe even tear the seal. Link to comment Share on other sites More sharing options...
dangerous brain Posted January 25, 2004 Share Posted January 25, 2004 So it aint worth putting the thing back together with old seals and having to take it apart then when it leaks. Better off getting a caliper servicing kit. The caliper seals were probably old and swollen anyway which is probably why he had difficulty pushing them back in. Replace the seals in the caliper give it a damn good clean up and it will be as good as new. As I said previous paint the thing a natty red or green and it will stand out pukker! Link to comment Share on other sites More sharing options...
Chris Wilson Posted January 25, 2004 Share Posted January 25, 2004 Calipers are fickle and mission critical, if in doubt get a proper exchange unit or get a pro to rebuild it. If the bore (not the piston(s) which is / are easily and cheaply replaced), has any corrosion just get a rebuilt unit, rust in the bore will jusy come back to haunt you. Link to comment Share on other sites More sharing options...
dangerous brain Posted January 25, 2004 Share Posted January 25, 2004 Calipers are pretty solid. A replacement seal kit should suffice. If you have enough nouse to know how to do the job it should be all good. Link to comment Share on other sites More sharing options...
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