Take it right out and make sure it is clean, might have some crap in it.
jason18,
Oct 5, 2:01pm
Right got it bleeding finally. Still spitting fluid out of the master cylinder when pressure applied.
snoopy221,
Oct 5, 2:31pm
Could be a faulty line pressure valve fitted in where the rear brake line connects. valve is inside the brass sealing piece the rear line seals on. small screw and side cutters to extract. Where is it !spitting! exactly! rear compensating port!
lookoutas,
Oct 5, 2:42pm
So now all you have to do is bleed it!
Is the bleeder an air/venturi type, or just a "homer" with a pipe going into a part full container. Never liked those venturi ones - they seem to keep bubbling. The old "homer" ones work good, but there's nothing better than getting it up hard and releasing the pressure.
snoopy221,
Oct 5, 2:49pm
Actually at this point of process . GO BACK TO GO AND COLLECT 200 -I.E. Back in the damn vise UNTIL you can get fluid from the rear circuit. After all in a tandem master the primary circuit effectivley should hydrualicy energise the secondary circuit. [Also pay to define primary and secondary rather than rear and front. I.E. rear master! or rear brakes!]
snoopy221,
Oct 5, 2:51pm
piccy time.maybe!
snoopy221,
Oct 5, 2:55pm
mmm memory is that sometimes there were slighty diferrent seals in some of them and one seal is a full seal-the other has small dent/groove (square impressions) in the back face to allow the seal to fold back and the master to recuperate. possibility here is someone may have placed the wrong seal in the wrong place.-again pics help.
jason18,
Oct 5, 3:57pm
Ok cheers guys, I have gravity feed the rear brakes now no air in lines by the look of it. Will bleed front soon and see outcome. Everything. seals etc look identical to my old one. Will post some pics soon if front wont bleed
jason18,
Oct 5, 5:06pm
Good ole gravity bleed fixed it!
snoopy221,
Oct 5, 8:08pm
All good then jase. Incedentaly ole sr2-well like moi he is well qualified in breakin thangs-if ya noes wat i mean. Basiacly had a similar problem.a while ago.
jason18,
Oct 6, 4:23am
Oh true haha man what a head scratcher it was. The master cylinder they supplied was slightly different. Had to drill out the end where the brake rod goes in to get it to work.
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