RT Posted September 17, 2008 Share Posted September 17, 2008 I spent ages bleeding my brakes as well.. could never get rid of the spongy pedal and so no leaks anywhere. Turned out to be a fuct master cylinder. I got that rebuild and it was instantly mint. so perhaps your master cylinder has given up. Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 17, 2008 Author Share Posted September 17, 2008 yeah i think your right coz eveything seems fine so must be the master cylinder, how much it cost to get a rebuild ? Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 17, 2008 Author Share Posted September 17, 2008 also the seals number 11 and 12 on this link in the picture of the master cylinder http://autorepair.about.com/od/brakerel ... 91804e.htm seem to be not leaking but are wet ? Quote Link to comment Share on other sites More sharing options...
kyteler Posted September 17, 2008 Share Posted September 17, 2008 Just get a kit, do it yourself. Piece of piss. Quote Link to comment Share on other sites More sharing options...
tortron Posted September 17, 2008 Share Posted September 17, 2008 last i paid was about $35 for a kit unless the cylinder is rusty or whatever had mine resleaved in stainless and rebuilt by apex for about $115 Quote Link to comment Share on other sites More sharing options...
kyteler Posted September 17, 2008 Share Posted September 17, 2008 ^ what he said, I had the Prince, Clutch & Brake masters and clutch slave, sleeved and rebuilt cost me over $300 all up, I forget specifics, but to get them sleeved and redone by APEX is a bit over $100, and kits and doing it yourself, as long as the master isn't fucked, will be fuckall. We kitted my mates Poolude master, took a few seconds, fixed the brakes straight away. Fucking bang. Cost around $40 for the kit. Quote Link to comment Share on other sites More sharing options...
RT Posted September 19, 2008 Share Posted September 19, 2008 Since my capri is 38 years old I had to get my master re-bored and there was pitting in there which made it impossible to seal. I ended up getting another one and having a steel sleave insert installed and then bored to suit. Made it mint. Quote Link to comment Share on other sites More sharing options...
lowlancer Posted September 19, 2008 Share Posted September 19, 2008 I purchased a brand new Starion master cylinder for $36 Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 20, 2008 Author Share Posted September 20, 2008 yeah well the saga continues so far ive re kitted the cylinder was clean as inside no pitting etc well is made from alloy so it wont rust but chucked it all together bench bleed it put it all on, bleed the brakes everything looks sweet but the master still feels like its by passing, although no fluid escaping thru the back or anything everything fine but its still broke so my conclusion is the master is just stuffed for some "UNKNOWN" reason doesn't make sense but i think its time to buy a new one, i aint paying someone to do something so bloody simple, yet its being complicated new master i think was 117 and that on green card at repco so not to bad, should of done that from the start Quote Link to comment Share on other sites More sharing options...
tortron Posted September 20, 2008 Share Posted September 20, 2008 if you put in a dry m/c you should only pump it halfway or itl overshoot a washer and be a right prick Quote Link to comment Share on other sites More sharing options...
Hemi Posted September 20, 2008 Share Posted September 20, 2008 if you put in a dry m/c you should only pump it halfway or itl overshoot a washer and be a right prick shouldnt really put a master cylinder in that hasnt been bench bled , cos it can be a mightmare to do it in place sometimes Quote Link to comment Share on other sites More sharing options...
tortron Posted September 20, 2008 Share Posted September 20, 2008 true that/minor ones dont have a bleed nipple Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 20, 2008 Author Share Posted September 20, 2008 i didnt put it in dry i bench bleed it but yeah its beyound me what the hell is going on just isnt making sense hopefully new m/c will fix it Quote Link to comment Share on other sites More sharing options...
slipsittin Posted September 21, 2008 Share Posted September 21, 2008 The only way to get all the air out of your system (particuarly with ABS) is to clamp off all the brake hoses and start bleeding by cracking off your master pipes then work from the R/H front to the L/H front to the R/H rear to the L/H rear. Taking of the clamp only where you are bleeding. This way you can find a problem before you get frustrated. If anything has a leak or is bypassing it will show up straight away due to it being isolated. Its the only way the brake experts will have you do it. Make sure you don't mix brake fuids either it can be another problem. There are 3 types of brake fluid now: mineral based , vegetable based and synthetic. They all have different properties and don't mix well. Also get the same DOT rating as mixing the ratings will alter the brake fade temperatures. Any more questions ask and I may be able to help. Corey Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 23, 2008 Author Share Posted September 23, 2008 fixed! my mate came round and sussed it and it was kinda embarrassing i put the new pads in wrong like in correct but in a set they have an outer and inner pad!? who knew? not me, so it was riding on the little metal lug that was spose to be on the other side and as i was putting my foot on the brake the caliper was twisting and making it feel as if there was air in the lines! crazy but yeah simple explanation for such a headache of a problem! i'm a Muppet also when he bleed the system we cracked the bleed nipple and left it cracked open as i pumped the brake much faster way, and air cant get back in due to the bleed nipple being under fluid coz of the pipe attached, man was it faster and easier and works just the same! Quote Link to comment Share on other sites More sharing options...
fuel Posted September 23, 2008 Share Posted September 23, 2008 that pipe must have had a valve at the end (known as a one-man bleeder), as if it doesn't it will just draw the air back into the system when the pedal comes up. Good to hear it's been sorted, it's usually always the simple things haha. Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 23, 2008 Author Share Posted September 23, 2008 nope no valve was just a old fuel line but it makes sense as it cant suck air in if its submeged in fluid will just suck fluid back in, i dunno hes the mechanic and the brakes work sweet now, yeah sometimes you just need an outside view lol speically when you get blinded with fustration Quote Link to comment Share on other sites More sharing options...
slipsittin Posted September 23, 2008 Share Posted September 23, 2008 As Fuel said, to do it that way you need a valve in the end but, it will suck air past the threads in the bleed nipple if it is left open. It will be fine for a short time but then the spongy peedle will come back or the air will make its way to the callipers and wheel cylinders causing the fluid to boil prematurly. Your mate has done it right but only half the job. Please make sure you bleed the brakes again as I described before to make sure the air is all out. I would hate you to add to this or start another thread saying your car was a wreck now. The pads in a lot of cars have traps for most people and cars like the Audis can have the inside pad fall down when the rotor moves before you get the wheel back on. Another trap is not having your rear brakes (if adjustable for discs) adjusted correctly allowing the air to stay in the line due to the fluid traveling past it. Corey Quote Link to comment Share on other sites More sharing options...
WildPlumDx Posted September 23, 2008 Author Share Posted September 23, 2008 hmm maybe i should bleed them again just to be sure, cant hurt, thanks for the advice Quote Link to comment Share on other sites More sharing options...
slipsittin Posted September 23, 2008 Share Posted September 23, 2008 No worries. I learn't the hard way with a minor crash in to a bosses wall when I was 14. Lucky as I was to only cost myself 2 weeks pay after school and Saturdays it was a hard lesson and a good learning curve lol Corey Quote Link to comment Share on other sites More sharing options...
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