love ke70 Posted October 16, 2006 Author Report Posted October 16, 2006 with gravity bleeding how do you know when there is or isnt air coming out? everytime ive opened the bleeder it just dribbles out slowly, i wouldnt know if there was air involved or not :S or do i just drain thru a metric gallon of fluid and hope that all the air came out in the process? why do you say don't pump the pedal? the way we have always done it (and did this time) is to have the pipe into the bottle and open the bleeder, push pedal down, shut bleeder bring pedal up, open bleeder, bring pedal down, and so on and so forth until you can't see anymore air coming out with the fluid into the pipe... with this master cyl. i just wacked it straight on as i didnt realise it had to be bled until after the event...i wish they would include instructions.... do you need a special master cylinder bleeding kit? ive read two docs on google about and it seems you do...I'm not sure why it has to be done anyway, and not really sure how to do it :S :D gah I'm so over these f@$king brakes ;) Quote
trd Posted October 16, 2006 Report Posted October 16, 2006 ok first thing, pull the master cyl off, put it in the vice. put a bit of a angle on it so the air will coming out of the pipe holes. next fill the master cyl then get a screw driver put it up the end of the cyl, put your fingers over the pipe holes & push on the screw driver (like your pumping the brake pedal) fliud should squit out past your fingers. do this about 5 times. make sure than you don't lift your fingers off when letting the pressure off the screw driver (if your fingers come off this will suck air back into the master cyl). you should have the same amount of fliud squiting out of both holes, if not keeping going untill you do. keep topping it up as well. when your happy with it, top it up & bolt back on the car. then go though & gravity bleed the brakes. now i don't a hose as they can give you a wrong idea. leave the hose off. crack the nipple off & look at the fliud coming out. when theres air in it, these usually a bubble (like blowing bubbles) don't know how to say it any other way. when its right it should have a stream of fliud or a constant drip from the nipple. what i would do is try the master cyl thing first. then try the pedal & see if its better, then bleed the brakes. bloodly hard to describ see how you go tony Quote
trd Posted October 16, 2006 Report Posted October 16, 2006 the way you bleed the brakes is one of the ways, but the master cyl, iam guessing is where the problem is. i found that gravity bleeding after getting the fliud to the wheels is the best way to make should you have all the air out. pumping the pedal on a new cyl is ok but not a old one as the seals run onto a area they don't usually go & that ends up stuffing them. be thankful you havn't got ABS. hope all this helps keep us up to date all to happy to help Quote
love ke70 Posted October 17, 2006 Author Report Posted October 17, 2006 alright... last night when i went to shut the shed down i stomped on the brakes a few times just with the engine off sitting still and they firmed up quite a bit so today, i did as i was told and bled the m/c, and bled hte brakes i tried doin the gravity way and they would start off dripping at a ok rate, but then would slow to like 5 drops a minute. no air tho. so i gave up and bled them the way i usually would they are pulling up quite nicely now, but the only issue left is that they still pull the to the right when you stomp on them so I'm going to call my rwc man and have a chat to him but any further suggestions would be greatly appreciated :D Quote
love ke70 Posted October 17, 2006 Author Report Posted October 17, 2006 fixed it sticky slider on the left hand front caliper can now lock the fronts...oops hehe i think my main issue was there was alot more than one issue that needed solving. looks like i got them all. think i might go out and get new brake lines now aswell, that way everything is completely brand new....god damn evil car :D Quote
love ke70 Posted October 17, 2006 Author Report Posted October 17, 2006 new calipers too? :D then its allllll new Quote
Corolla Test Pilot Posted October 20, 2006 Report Posted October 20, 2006 Good to hear you fixed what ailed ye. But the problem you initially described sounded a lot like what was wrong with mine for along time: master cylinder past its expiry date, the piston only sealing with the cylinder at random intervals. Sometimes straight to the carpet, sometimes rock solid at the top of the pedal. Replaced cylinder, bled it properly, brakes like new. Hurrah for 30 year old hydraulics. Quote
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