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Old 21-02-2012, 01:35 PM   #1
James116
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Brake is getting smashed soon! Arghhh help please

As some may know I've been having problem with my front brake it's a twin pit front brake marzocchi style i CANNOT for the life of me bleed this crock of shi$

Tried new master
New calliper seal
Different hose
Ptfe tape on all the thread and copper washer where there should be
Pressure bleeding it
Reverse bleeding it
Fresh fluid
Clean bleed nipple
Clean master
Unblocked hose

Gone through about 20quid of fluid and it's still ****. Has a bite but then can right to the bar with ease!
Anyone got any help/advice/tips last resort it the smash the damn thing with a hammer

Thanks
James
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Old 21-02-2012, 02:14 PM   #2
teapot
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Re: Brake is getting smashed soon! Arghhh help please

formula brake?
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Old 21-02-2012, 02:29 PM   #3
mo/ka/nic
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Re: Brake is getting smashed soon! Arghhh help please

make sure all banjos are tite and that u have no leaks if this is all good then start all over agen..


take the caliper off the forks and push the pistens back in all the way

leave the master on the bars but tern the bar all the way to the left so the master is at the highist point ,

boult the caliper back to the forks

now fill the caliper up with good dot 3 or 4 fluid as much as u can get in, fit a pice of clear pipe over the top of the bleed nipple so u can see the air coming out on bleedin

unboult the banjo boult on the caliper and hold the banjo tite with your finger and thumb

slowley start to bleed the brake line uesing ur finger and thump as a bleed point pull in the leaver slowley ,hold it in as u let the air out. wen all the air has come out ,with ur finger hold the bajo tite agen and let the leaver out slowley ,keep doing this untill the fulid sqerts out the banjo even wen ur holding it tite

with u holding the leaver in re-fit the banjo to the caliper and start to bleed the air out of the caliper shouldnt take long as there wont be too much air in there

wen u have all the air out the caliper titen the bleed nipple

then just in case u got any air bubbles go back up the pipe wen re-fitting the banjo on to the caliper do a quick back bleed real easy to do
all u have to do id very very slowley put the leaver in but only pull in in harf way not all the way do this untill no air comes back up do this very very slow and dont put ur head right above the master as if u pull the leaver in to fast it will sqert fulid strate up

dont for get to keep topping the master up as ur going along the steps


hope this helps this is the way i bleed most brakes works a treat and not as hard as u think
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Old 21-02-2012, 03:01 PM   #4
Despise
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Re: Brake is getting smashed soon! Arghhh help please

Try another master res. If you know your res isnt the problem, then looking onto the brake caliper itself:

take it apart, clean it up and make sure the pistons move freely and evenly, lube the outer seals, copper grease the outer inside of the cal, same goes with the outer edge of the pads (very thin layer here, you dont want any on the pad surface) so it all slides nice and re-assemble
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