Syed Shah Posted May 29, 2004 Share Posted May 29, 2004 Probably all the stress that lardy j-spec is putting on them You could try some ducting to see if that helps, there is writeup on http://www.mkiv.com about it. Quote Link to comment Share on other sites More sharing options...
Matt Harwood Posted May 29, 2004 Share Posted May 29, 2004 LOL, Thanks, I'll have a look Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted May 29, 2004 Share Posted May 29, 2004 http://www.supraforums.com/forum/showthread.php?s=&threadid=59705 Paul, the trac pump stuff is in that thread. Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 29, 2004 Author Share Posted May 29, 2004 Cheers Syed & Matt H, seems like i have another problem with the brakes, which makes my car totally off the road.....for now! Theres a leak on the front caliper, where the hose goes to the caliper, the thread inside the caliper has been threaded slightly at the top. Theres not loads of fluid coming out but there is wet there, i don't really want a new 240 quid caliper from Toyota but oviously this needs sorting. It's got quite a good bit as most of the threads still on, it's just the top where it's not gripping, my dads out now to get some lock tight and i'm also going to try wrapping the nut in tape, not sure what the name is but that thin white tape. See if that stops the leak, problems problems problems!!! I don't know who did these brakes last time, but i think it was a Monkey! Pins were seized in all calipers, total nightmare! Paul Quote Link to comment Share on other sites More sharing options...
Syed Shah Posted May 29, 2004 Share Posted May 29, 2004 Paul, Most calipers of that age are in poor condition, while your sorting out the brake problems, order up a caliper refurb kit from Toyota, well worth it. Quote Link to comment Share on other sites More sharing options...
Whitesupraboy2 Posted May 29, 2004 Share Posted May 29, 2004 Paul, sorry but got to go against you on this one. problems with brakes you dont drive! simple!!! most little problems you can drive with but brakes are a big NO NO in my book, IMHO that is The leaking caliper may explain the pull to the left though so at least some good news. Look at that a post with some negative but helpful information On another bad news warped my disks last night,just when i want to try and get rid of the car Quote Link to comment Share on other sites More sharing options...
matt Posted May 29, 2004 Share Posted May 29, 2004 Do yourself a favour........ and don't even think about bodging it. Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted May 29, 2004 Share Posted May 29, 2004 i have still got the original jap calipers and discs on mine, got car at 35k miles and now on 70k miles only changed to some cw pads. most of time they feel fine to me, just when you get on a track you know how crap they are. paul you do seem to have troubles with your cars. my astra has had loads of things needed doing but it is an old car. Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 29, 2004 Author Share Posted May 29, 2004 We think we now know what the slight judder is, the old pads that were on, the compound didn't go all the way to the edge of the pad, which has caused rust to build up on the outside of the disk. The new Hawk pads go all the way to the edge of the pad and give more surface grip to the disk, so this could be where the judder is coming from.....as theres air between the disk and pad. Not much but enough maybe??? The pistons on each caliper are fine, and i honestly don't know how you could warp a disk, have you seen the UK disks? You could heat them up with a bloody blow torch and have difficulty warping them Also once the leak is sorted, not bodged!!! it'll hopefully be fine, and once the system has been bled which where doing tomorrow. Where going to use some copper stuff my dad got which you put into to make a new thread, not sure what it is but will do the trick! Once again, i'm not an Engineer like my dad is, which is why i might ask questions, but i'd like to learn more about the Supra. Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 29, 2004 Author Share Posted May 29, 2004 Mark, my last car i had troubles with but not this one. The only problems i've had with this is when Toyota mucked up the clutch/flywheel change by piercing the sump, and then the brakes which look like they have been put on by trained monkeys as mechanics as the pics were the wrong size, and they managed to thread a bolt but thats it......not loads of problems at all. 2 minor ones in 9 months Mines a 94, yours is a 96 so does that make us both with old cars? Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted May 29, 2004 Share Posted May 29, 2004 i was onabout the astra been an old car, its a shed so i would expect things to go. the supra is old but built loads better than a crappy old astra. just seeing all of your posts of troubles you having with cars. everybody has there fair share of trubles but you seem to have more than others. but you do drive it hard with all your kill storys. will you have it sorted for elvington? Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 29, 2004 Author Share Posted May 29, 2004 Hi Monkey, i think if somethings going to go wrong then it'll go wrong on mine, i have no luck Hopefully it'll be ok for Elvington, but i think i'll just be watching, if i can get the brakes then the boost controller in tomorrow then maybe run, but i doubt it...... Are you running your car mate? CRD's 1000bhp gold car is going, should be fun watching that like And Kevs car is running of course, hope mine will Quote Link to comment Share on other sites More sharing options...
MONKEYmark Posted May 29, 2004 Share Posted May 29, 2004 i wont be running the astra as its got a coffee machine in back Quote Link to comment Share on other sites More sharing options...
Jake Posted May 29, 2004 Share Posted May 29, 2004 Hi Paul, Are you saying that that the thread is stripped in the caliper? Is this on the caliper that you removed or the other one? The white tape you were saying about using to try to stop the leak is PTFE tape but it's no good for high temprature applications like brakes. Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 29, 2004 Share Posted May 29, 2004 I've got UK brakes. I warped the J-spec ones the first week I had the car! Since then, I've got through 2 sets of UK disks in less than 30,000 miles. Matt, how do you do that? I run my car on the track and the front discs warp a little so I ease off for a lap or two and everything is fine. I can't imagine warping UK discs on the road, and believe me I can brake hard! Quote Link to comment Share on other sites More sharing options...
TRD3000GT Posted May 29, 2004 Share Posted May 29, 2004 Originally posted by John Packham Matt, how do you do that? I run my car on the track and the front discs warp a little so I ease off for a lap or two and everything is fine. I can't imagine warping UK discs on the road, and believe me I can brake hard! Dude you need the brembo drilled disks! Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 29, 2004 Share Posted May 29, 2004 Theres not loads of fluid coming out but there is wet there, i don't really want a new 240 quid caliper from Toyota but oviously this needs sorting. Paul, you need to replace both front calipers. You can't mess about with marginal hydraulics, you'll lose all your front braking power and that's most of what the car has. The alternative is catastrophic failure and a big shunt. Quote Link to comment Share on other sites More sharing options...
dangerous brain Posted May 29, 2004 Share Posted May 29, 2004 My jaw is quite literally scraping the floor reading this thread. How can anyone be daft enough to drive a car that they know requires bleeding on the brakes?? Not wanting to be rude but that is f*cking neglegent. How would you feel if you killed someone because you didn't stop in time due to poor braking directly attributed to air in the brakes?? As an aside to my little outburst. Brake discs can very easily be warped or hot-spotted. I did a brand new pair of front discs on another car due to my tendency of holding my car on my foot brakes instead of the handbrake. After braking your discs have heat in them. If your pads stay stationary over a specific spot IE if you stop and don't release the brake then the heat in the area around the pad to disc contact cannot escape like the rest of the disc that isn't insulated by the pads. this heat can cause hotspotting. Its not as bad as warping the entire disc but it can cause vibration. Do it enough times and the vibration gets worse. Another point. When changing pads its customary to measure the discs and check to ensure even wear on it. Apparently yours has not had even wear as the new pads are contacting more surface than the old ones did. At this point the discs should have been skimmed if for no other reason than to prolong the life of the new pads. If the threads are stripped that hold the pipe into the caliper then seriously a bit of copper grease or thread lock or any form of bonding is really not sensible. If you must insist on keeping the calipers and not replacing them at least have thread inserts put in them so that you know for sure the pipe won't come out. Quote Link to comment Share on other sites More sharing options...
Keith C Posted May 30, 2004 Share Posted May 30, 2004 I warped a set of UK front discs with a single press of the brake pedal. It's easily done. I also have a judder that builds up after a few hard stops - not sure what that is, but I take it as my cue to ease off. Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 30, 2004 Author Share Posted May 30, 2004 The car is off the road, needs a new caliper on the front, i'm just going to buy one though, not two as the other one is fine, the pistons work no probs. Once again the disks are not warped, checked them today! I have never seen a UK car with warped disks so would love to see one, would take some heat to do that. On the strip at Elvington i've braked from 170 5 times one day and no sign of warping!!! Warped disks, lol Quote Link to comment Share on other sites More sharing options...
Keith C Posted May 30, 2004 Share Posted May 30, 2004 You won't be able to SEE the warping! It's not like the discs will be banana shaped... Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 30, 2004 Author Share Posted May 30, 2004 Had the disks off today, put them on a sheet of glass and there perfectly straight New caliper needed Quote Link to comment Share on other sites More sharing options...
Keith C Posted May 30, 2004 Share Posted May 30, 2004 Originally posted by Paul Laing Had the disks off today, put them on a sheet of glass and there perfectly straight New caliper needed They might be straight when *cold*. Quote Link to comment Share on other sites More sharing options...
Paul Laing Posted May 30, 2004 Author Share Posted May 30, 2004 God an answer for anything!!!!! PMSL Quote Link to comment Share on other sites More sharing options...
Need4Speed Posted May 30, 2004 Share Posted May 30, 2004 The car is off the road, needs a new caliper on the front, i'm just going to buy one though, not two as the other one is fine, the pistons work no probs. Personally I would replace both calipers or you will probably experiennce brakes pulling to one side. To check your discs, you need them in situ with a dial gauge to check run-out. When you get it all sorted you'll know what we're on about. Quote Link to comment Share on other sites More sharing options...
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.
Note: Your post will require moderator approval before it will be visible.