BIG PROBS AFTER FITTING 4 POTTS
#1
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BIG PROBS AFTER FITTING 4 POTTS
hi all hope u guys and girls can help ive just fitted 4 potts and twin to the back but we have put 5 ltrs of brake fluid thru now and still got a flat to the floor pedal sometimes hard then leave for a min then flat to floor ive fitted a new master cylinder today we done it all again and still the same what are we doing wrong or what is the problem please help it driving me nuts cheer richie
#2
hi all hope u guys and girls can help ive just fitted 4 potts and twin to the back but we have put 5 ltrs of brake fluid thru now and still got a flat to the floor pedal sometimes hard then leave for a min then flat to floor ive fitted a new master cylinder today we done it all again and still the same what are we doing wrong or what is the problem please help it driving me nuts cheer richie
Sounds like there is still air in the system somewhere?
ps. i thinnk this will be moved to general technical, but you wont find it as the search function has now been disabled lol
#3
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Have you checked the seals on the calipers? I intend to overhaul the 4 pots when I get some for my car and repaint them.
Just check all of the seals, hoses and bleed nipples. It maybe you could still have air in the system too.
Just check all of the seals, hoses and bleed nipples. It maybe you could still have air in the system too.
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yes there less in the system but ive still got a flat to the floor problem
ive got the claipers the right way up the the hoses are attached straight down do the have to be attthed so they loop from the bottom if you know what i mean
ive got the claipers the right way up the the hoses are attached straight down do the have to be attthed so they loop from the bottom if you know what i mean
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Try attaching a syringe with a tube onto the caliper nipple,fill the syringe with brake fluid and back bleed the system by forcing the fluid through the caliper and up to the master cylinder/resevouir...
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Try this technique,
Start furthest away from m/cylinder, i.e rears first. open bleed nipple push pedal down then close nipple let pedal up repeat until all air out on all calipers.
If that dont work you could have flipped the seal in the master cylinders.
Start furthest away from m/cylinder, i.e rears first. open bleed nipple push pedal down then close nipple let pedal up repeat until all air out on all calipers.
If that dont work you could have flipped the seal in the master cylinders.
#12
After the air is gone if the pedel still goes all the way to the floor you either have got a huge leak somewhere or the M.Cylinder seals have deteriorated.
Last edited by dan83590; 06 July 2007 at 08:09 AM.
#14
start furthest away from master cylinder pump pedal hard about 6 times quite fast on the last pump hold pedal down relise nipple aload of air should come out keep doing on same nipple untill just fluid comes out then start on next and so on
ive never had a problem yet
ive never had a problem yet
#15
You forgot about overcoming the load sensing at the rear. I usually use a small trolley jack on each rear tie bar just take the weight a little, but not enough to lift it off the axle stands.
#19
It is m ore difficult on your own but the kits do work well, just a oneway valve on a rubber tube. I did one recently which was fine.
try not to press the pedal all the way to the floor as it can damage the MS seals.
Dave
try not to press the pedal all the way to the floor as it can damage the MS seals.
Dave
#20
Just a quick addition to this statement: The eazibleed kit I purchased did not fit the master cylinder on a 93 WRX, I had to fashion my own adapter. Once working it did the job very well but it was a pain getting it there, I should have bought the cheapo kit which I have since done; loads easier and the end result was exactly the same.
#22
dont no if this helps but the correct order is front right ,rear left ,front left, rear right. done with a bleed kit when changed hoses and no problems. and the lines can hold more air than you think
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