I just would like confirmation on the position and orientation of the master cylinder seals; new replacement seals I fitted some time ago.
I've just stripped the cylinder down, and found the piston, with the piston seal fitted in the first 'groove', behind the push rod recessed end, with its lipped edge facing into the cylinder barrel and the 'loose' seal backed up by the tapered spring facing the same way (spring into cup), with a wavey washer at its back againts the piston's end face with three little 'bleed holes.
On removing the retaining circlip and washer I found that the piston assembly didn't spring out, as I think it's supposed to do. It does now, after freeing it with a long fine screwdriver from the discharge end, and quite freely, as it did when originally overhauled. I think this explains why the bleeding bleeding efforts failed though. My son's pedal pumping effort might have been just against the clutch pedal return spring :P.
Unless the seal orientation was incorrect:shock:.
I'm hedging towards buying a replacement cylinder, I don't want to go through this pain again in a few months time. Unless someone can talk me into accepting the fact that dry storage was the issue and that now the chamber is flooded with lubricating brake fuild, and hopefully with use, the chances of seizing would be remote.
John4d
I've just stripped the cylinder down, and found the piston, with the piston seal fitted in the first 'groove', behind the push rod recessed end, with its lipped edge facing into the cylinder barrel and the 'loose' seal backed up by the tapered spring facing the same way (spring into cup), with a wavey washer at its back againts the piston's end face with three little 'bleed holes.
On removing the retaining circlip and washer I found that the piston assembly didn't spring out, as I think it's supposed to do. It does now, after freeing it with a long fine screwdriver from the discharge end, and quite freely, as it did when originally overhauled. I think this explains why the bleeding bleeding efforts failed though. My son's pedal pumping effort might have been just against the clutch pedal return spring :P.
Unless the seal orientation was incorrect:shock:.
I'm hedging towards buying a replacement cylinder, I don't want to go through this pain again in a few months time. Unless someone can talk me into accepting the fact that dry storage was the issue and that now the chamber is flooded with lubricating brake fuild, and hopefully with use, the chances of seizing would be remote.
John4d
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