Beaver Posted July 26, 2012 Share Posted July 26, 2012 If my front brakes (disc) are permantly on slightly, whats the best way to remedy? I cracked the bleed nipple but there was no excess pressure.... should I crack it open and slightly press the brake pedal and then do it back up to get some 'slack' in the system? Quote Link to comment Share on other sites More sharing options...
KKtrips Posted July 26, 2012 Share Posted July 26, 2012 IIRC your Triumph has twin piston callipers on the front and are not sliding type. If its one wheel sticking then its normally a semi seized component causing it. Sliding type callipers its often the slide that is seized, non sliding its mostly a seized piston. If its both wheels sticking on the same amount then its most probably a sticky seal in the master cylinder. Either way some or all of your brake components are going to need some kind of stripdown and overhaul. PS - nice loveheart faggit Quote Link to comment Share on other sites More sharing options...
Beaver Posted July 26, 2012 Author Share Posted July 26, 2012 its both sides. they are pretty stiff too, ie more than just a bit of drag lol. so track down a rekit fo rth epistons and master you rekon?> Quote Link to comment Share on other sites More sharing options...
KKtrips Posted July 26, 2012 Share Posted July 26, 2012 Yeah - if that floats ya boat - I can help with that. TBH I would track down a 2nd hand pair of callipers and master then rekit those rather than strip yours apart and find there is more than just a rekit required. Problem is with a lot of the Lucas and Girling stuff they get pitted pistons and bores - you can get the M/C sleeved and calliper pistons new still so its not all bad news - just the length of time your car may be off the road while you source them could be a PITA.. Quote Link to comment Share on other sites More sharing options...
kyteler Posted July 26, 2012 Share Posted July 26, 2012 Just pull apart your calipers, check the condition of the seals, use a little emery paper on the bores, they might come up sweetbix without spending any money at all. Quote Link to comment Share on other sites More sharing options...
Beaver Posted July 26, 2012 Author Share Posted July 26, 2012 yeh thats soudns liek a good start. thank old man(s) Quote Link to comment Share on other sites More sharing options...
KKtrips Posted July 26, 2012 Share Posted July 26, 2012 Yes you could do that but its quite likely that you will damage the seals pulling the pistons out. You'll put them back together and they'll start leaking within a couple months.. Seen it time and time again on Jags and MG's. Remember I worked on old Pommy dungers for most of my career.. Quote Link to comment Share on other sites More sharing options...
Beaver Posted July 26, 2012 Author Share Posted July 26, 2012 Remember I worked on old Pommy dungers for most of my career.. Ah thats right, you also worked on old cars as well didnt you? but yes I agree. Il do some lookign about and see what I can find Quote Link to comment Share on other sites More sharing options...
Borgweiser Posted July 26, 2012 Share Posted July 26, 2012 How much resistance are we talking when you spin the wheel you woofter? If you can spin it i'd say its normal Quote Link to comment Share on other sites More sharing options...
Beaver Posted July 26, 2012 Author Share Posted July 26, 2012 they dont spin.... you have to have a pretty good go at turning it and it doesnt spoin when you stop turning. Quote Link to comment Share on other sites More sharing options...
Borgweiser Posted July 26, 2012 Share Posted July 26, 2012 If it kept spinning i'd be more worried.. Best thing to do, whip wheels off and push pads back into the calipers, if they go in with no more than hydraulic pressure they legit. If they are stiff, remove pad, spray piston with crc, and remove crud from visible part of piston and rotate whilst forcing in. better living everyone Quote Link to comment Share on other sites More sharing options...
Unclejake Posted July 27, 2012 Share Posted July 27, 2012 I have had this problem with stuffed flexi-hoses in the past, but if both wheels are the same then you need to look at the things that are common to both wheels IMHO Quote Link to comment Share on other sites More sharing options...
Bling Posted July 27, 2012 Share Posted July 27, 2012 Yeah that would be my thinking too ^^ Unless both sides unluckily have the exact same problem, then start with what affects both of them. How does the brake system work? Diagonal wheels paired up or some other way? Rears spin freely compared to fronts? No idea about your car, so go easy but if it was a master based issue wouldn't that also affect rears or nah? Quote Link to comment Share on other sites More sharing options...
morkster Posted July 27, 2012 Share Posted July 27, 2012 Quite often this is a blocked compensating port in the master cylinder. The brake pedal needs to come back far enough for this; it's worth checking - you need some freeplay there. Otherwise like kyteler says "Just pull apart your calipers, check the condition of the seals, use a little emery paper on the bores, they might come up sweetbix without spending any money at all." I had the same problem on my old car and I have done this^ recently with 6 calipers; I was lucky with the seals, I used rust killer on the calipers and pistons to rid any corrosion. I found that the problem was most likely the pistons catching the bores between the seal and the dust seal. The 2 that were on the car are back there now and seem to be fine. I guess out of the 6, 2 are in very good condition, 2 are quite good (on the car) and 2 are average spares probly not useable. Quote Link to comment Share on other sites More sharing options...
sholdowa Posted July 27, 2012 Share Posted July 27, 2012 If it kept spinning i'd be more worried..Best thing to do, whip wheels off and push pads back into the calipers, if they go in with no more than hydraulic pressure they legit. If they are stiff, remove pad, spray piston with crc, and remove crud from visible part of piston and rotate whilst forcing in. better living everyone I just use a tyre lever to push them back, then pedal to push them back against the tyre lever, rinse and repeat until they behave themselves...bit of brake fluid on the exposed piston. Quote Link to comment Share on other sites More sharing options...
bubblegoose Posted July 27, 2012 Share Posted July 27, 2012 just reseal the calipers, its English its designed to corrode behind the seals pushing them out into the piston jamming it on so will need a good scraping out before new seals go in/the old ones you just sat in boiling water Quote Link to comment Share on other sites More sharing options...
Spencer Posted July 27, 2012 Share Posted July 27, 2012 Yea I would be keen to pop the pistons check/clean and reseal them if they aren't to bad, a master check would be on the cards aswell Quote Link to comment Share on other sites More sharing options...
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