Outer Limits 4x4 Board

Why cant I bleed the system? I have done everything the book says and I have put 1 litre of brake fluid through the system to no avail. I have tried pumping up the brakes and then releasing the bleed nipple and repeating this until all the air bubbles dissapear starting with the one furtherest away from the master cylinder. I have also tried what the manual states by releasing the bleed nipple and pumping the brakes every 5 seconds until all air bubbles dissapear and I still have no brakes. I had to change the rear line because it was cracked that is the only reason why the brakes need to be bled so as far as I know the brakes should be fine as nothing was wrong with them beforehand. I even tried pumping the fluid through the lines using a pressurised tyre tube it worked like a treat and pushed the fluid through until it was clear but you guessed it still no brakes.

Please Help.....
Thanks.....

Front calipers on rangie have 3 bleed nipples - 2 at the back are obvious, the third is higher up on the inside. Make sure you bleed from this 3rd nipple to get all air out.

If you are using the original mastercylinder you have probably damaged the piston seals by pushing the pedal all the way to the floor when attemting to bleed the system. An old mastercylinder will operate perfectly well for many years if undisturbed because on a fully bled system the operating piston stroke is quite short. the unused portion of the cylinder bore can corrode and pit. when you try to bleed the system or after fitting new brake pads push the pedal all the way down the piston seals get damaged as they pass through the corroded, pitted cylinder. to avoid this happening you should pump the brake pedal with short strokes of about 50mm when bleeding or restoring pedal height after pad replacement.
Bill.

Cable Jockey is right, there is a total of six bleed nipples on the front of earlier rangies but you can't bleed them all seperately and expect a perfect pedal. To bleed the entire system obviously you start at the passenger side rear & work your way to the front but when you get to the passenger side front the primary & secondary screws ON THE SAME SIDE OF THE FRONT CALIPER have to be bled at the same time which means you either need a T piece in your bleeder hose or 2 seperate hoses off each nipple. Once you have bled those 2 simultaneously you then bleed the other nipple on the same caliper. Repeat the procedure for the drivers side & if you have'nt previously stuffed your master cylinder you will probably end up with a good pedal.

Thanks for the replies I new about the primary and secondary nipples on the front calipers but I didn't now about the master cylinder issue. I took the car to the mechanics today and yep the master cylinder is stuffed. Quoted between $300 to $1100 for a new one so shop around if it happens to you.

Rangiespares Les richmond motors,

RECo $220.00 inc resleeve.

just had mine done.

Michaell

I got a reco master cylinder from Range-Rov in mitcham about 12mths ago for $180

The new second hand master cylinder is in and it is good as gold. When I bled the brakes this time the pedal wasn't pressed in any further than 50mm it took forever to do and my girlfriend was sick of it after about an hour. Thanks to all for your input once again you guys have made life much easier.

Is there anywhere in Sydney that reco master cylinders as it would be handy to have spare?

Cheers Paul.....