Mud-club

Vehicle & Technical => Discovery => Topic started by: Rob110 on February 25, 2006, 18:04:56

Title: tips for bleeding brakes
Post by: Rob110 on February 25, 2006, 18:04:56

hi,

Im fitting some extended brake hoses next weekend and have been told its a horrible job, ive already cleaned all bolts and put on some plus gas so hopefully it will all come apart.

on the front calipers there are two hoses and 3 bleeds each and on the back there are one hose and one bleed each

are there any tips for bleeding the whole system after i fit the new hoses?

ps i could only see one bleed on the rear caliper, is that right?

thanks for any help

rob

Title: tips for bleeding brakes
Post by: Rangie3.0LtrDan on February 25, 2006, 18:16:02

I will give one piece of advice.  Spend £15 and buy an EeziBleed kit from Halfrauds (its the proper eezibleed kit not the halfords clear bottle with a pipe) it will save you hours of bleeding!  It used air from your spare wheel to pressurise and push the liquid and air through, so you dont have anyone pumping brakes, just attach the eezibleed and then go round in the correct sequence undoing the bleed screws!

Title: tips for bleeding brakes
Post by: denviks on February 25, 2006, 19:43:28

gotta 100% agree. ezibleed kit is worth every penny spent. makes life soooo much ezier :wink:

Title: tips for bleeding brakes
Post by: jiffyman on February 25, 2006, 20:23:11

Heard about them, they sound the best bet!

Title: tips for bleeding brakes
Post by: Bulli on February 25, 2006, 20:25:37

They work well, but arent the best...miti vac are far better...no pumping the pedal or any of that stuff...just watch the reservoir as it drags fluid through like lightning!!

Title: tips for bleeding brakes
Post by: lrmike on February 25, 2006, 23:31:46

I've got a miti vac and works great!  Just don't loan it to your mate who doesn't pay attention to the level in the jar and sucks it through the pump  ](*,)
Thank goodness for rebuild kits!

I've had good luck with gravity bleeding and then a great wife to pump the pedal a few time to finish the job.

Title: tips for bleeding brakes
Post by: Range Rover Blues on February 26, 2006, 03:08:02

With the dual-circuit you need to bleed the nipple inboard first at the same time as the top one, then blled the outside last, if that makes sense.  the two lower nipples are joined by a tapping in the bottom of thw calliper so you can't bleed the outside piston first.  The top niple does the top pair of pistons.

if it won't start bleeding try opening up the unuion on the master cylinder and bleeding the system there first, any air in the master can stop successful bleeding.

Also, bleed the back brakes first.

Title: tips for bleeding brakes
Post by: Rob110 on February 26, 2006, 18:51:52

ok

is there any caliper i should do first? or just do back then the fronts

so i do the top one and the one nearest the engine then the one pointing out towards the wheel?

cheers again

Rob

Title: tips for bleeding brakes
Post by: Rangie3.0LtrDan on February 26, 2006, 19:12:35

You always do the furthest from the master cylinder and work to the closest, so passenger rear, drivers rear, passenger front and drivers front.

Title: tips for bleeding brakes
Post by: Range Rover Blues on February 27, 2006, 01:45:04

Quote from: "robert"

ok

is there any caliper i should do first? or just do back then the fronts

so i do the top one and the one nearest the engine then the one pointing out towards the wheel?

cheers again

Rob

Yes.

If you are using EasyBleed it's not as important but for 2 man bleeding you should bleed both circuits together, apparently :?

Always start furthest from the master cylinder, as the unbled air gets compressed so the more of it you have in a pipe the harder it is to get it all out.

IO also like to retract the pistons into the callipers with a pair of pipe-grips (or big pliers) to check the piston isn't seized and help work the air out of the calliper.