Clutch master problems

[TR3driver]

Like I said, I've got a Haynes manual and all 3 suppliers catalogs (plus the net) and I haven't found a decent explanation or drawings of the internals. Sure would help.

Then the first thing you should do is download the factory workshop manual
https://docs.google.com/open?id=0B2H2NJt34OffYWZiN2VlZGMtNTkxMi00NGUzLWE4NzMtMGRkODRkYzU3MDU1
and check out page 450. Might as well get the factory parts catalog
https://docs.google.com/open?id=0B2H2NJt34OffMWQ4N2EzZGQtNjc0Ny00YmE2LWFiN2UtZWYzMjNjNGFiYzY4
while you are at it. Note that this is actually the TRF catalog; they don't publish a full TR3 catalog of their own and carry much, much more than what is shown in the "mini-catalog" or "glovebox companion". It's an odd way to do business, but actually works quite well IMO once you get used to it.

Then take a look at this page:https://i258.photobucket.com/albums...l pages/3-202MasterCylinderoperationcook2.jpg (click to zoom in). Although written for a TR4, the master cylinder is identical except the TR4 uses an integral reservoir instead of the separate reservoir on the TR3A.

 

[PKPoole]

Hey Randall,
You are right about the return connection/action. I'd forgotten that the rod just pushes and is not 'connected' to the piston. The sad part is that I just finished rebuilding my two cylinders the day before my note so I should have known. This getting old is tough.

I should mention that I always have my master & slave cylinders brass-sleaved (I use Apple Hydaulics) in every restoration. I have also switched to using silicone fluid about ten years ago. The sleaving just about eliminates any future leakage/seal failures.

 

[KVH]

If the fluid in the Master is full, and if there are no leaks, and if the clutch cross bar is moving as the slave bar moves, isn't there a problem inside the bell housing, like the taper pin as mentioned way back up top or something equally significant at the clutch or throw out bearing?

Maybe I read this too quickly, but assuming no leaks, and the slave bar doesn't move the clutch cross bar, then I could imagine some odd situation with the seals failing, but I've never seen such a situation and I'd think the problem would not have manifested itself in a sudden manner. I'm imagining the slave piston stuck or jammed forward and the fluid just going back and forth around a failed seal, but no leaks. I can't see that, but I hope it's that simple and I learn more again.

Another thought I have at this point is this: Bentley actually waived its copyright and allowed its manual to be posted on the internet! Is that true for the TR4 and TR4A? Has this been common knowledge around here?

 

[Lukens]

If the fluid in the Master is full, and if there are no leaks, and if the clutch cross bar is moving as the slave bar moves, isn't there a problem inside the bell housing, like the taper pin as mentioned way back up top or something equally significant at the clutch or throw out bearing? Clutch bar? If you mean the slave cylinder's pushrod, no it was barely moving. Maybe a 1/4"

Maybe I read this too quickly, but assuming no leaks, and the slave bar doesn't move the clutch cross bar, then I could imagine some odd situation with the seals failing, but I've never seen such a situation and I'd think the problem would not have manifested itself in a sudden manner. I'm imagining the slave piston stuck or jammed forward and the fluid just going back and forth around a failed seal, but no leaks. I can't see that, but I hope it's that simple and I learn more again. No, the slave push rod stayed retracted.


point is this: Bentley actually waived its copyright and allowed its manual to be posted on the internet! Is that true for the TR4 and TR4A? Has this been common knowledge around here?be nice. Would be nice. I've downloaded some other manuals for free. Any clues?