Clutch Master cylinder bleeding after repair

[Ollie]

Repaired the clutch master cylinder on Lucille yesterday with spares from Paddocks. These, not being OEM, seamed up to the job.
Repair went well, and once back together, we started bleeding, here's where the problems started;
We went through a whole pint of clutch fluid, and were still getting large amounts of air bubbling through the system
We removed the cylinder housing plate, and no fluid appears to be leaking out :?:  :?:  :?:
The only thing I can think of is slave cylinder leaking :?:  :?:  :?:

Any ideas :?:
Ollie

[hobbit]

Did you check the pipe for any poss pin holes, kinks or nicks, might be enoough to suck a bit of air in

Kev

[V8MoneyPit]

I had this problem recently. However much fluid I put through, I just couldn't get a pedal. I then made the mistake of letting the reservoir get a little low and it drew in a great gulp of extra air. This seemed to get the air flowing properly through the system though!!

I does seem that you need to follow the manual system to the letter with both brakes and clutch. Put the bleed tube under the surface of some clean fluid in a jar. Undo the bleed screw and press the pedal firmly to the floor. Hold it there for several seconds, then release and pause again. Then press, pause, release...... etc.

I had previously tried the open screw, press pedal, close screw, release pedal method without success.

[hobbit]

I had that prob with the lightweight, after an engine/box swap. Would not go right whatever we tried. Left the thing overnight and was as right as rain the next day, left well alone after that   :roll:

As an after thought though, have you tried reverse bleeding it?

Kev

[Ollie]

We removed the master again, it was all working before we took it appart, so the problem must lie there :-k
The issue lay in two things;
The spring that sits over the pushrod had not had the securing lug properly cliped into place, thus not securing it.... and, probably the cause;
We missed the fact that the circlip that holds the pistion in the cylinder, also holds the pudhrod retaining washer #-o

All back together and bleed much easier, thanks chaps.
RTFM =D>

Ollie