Salve cylinder push rod lengths

[sujitroy]

I have two rods in my box of stuff. Does anyone recall the correct length from the photo? The longer one is about 3/4" longer. I'm thinking of using this longer one as long as it doesn't push the piston all the way in the cylinder way and I have some amount of loose motion in the set up. I plan to straighten the longer rod. i will use the middle hole on the cross shaft.
Sujit

[Lingen]

Sujit.
The longer one has clearly been modified by someone who doesn't understand how the self-adjusting hydraulic system works. It will have no effect on increasing the travel of the clutch mechanism unless the piston is pushed right to the back of the cylinder. This will cause the release bearing to be in constant heavy contact with the clutch cover, and cause rapid wear of both components.
My advice is to fit the original one..
Mike.

[sujitroy]

Hello Mike,
I'm still not convinced the longer one wont work. i agree it wont increase the travel. Since the system is self adjusting all I can see is the piston will sit further up the cylinder. Anyway, I'll play with it and report back. This second Stag is my experimental car.
Regards, Sujit

[Lingen]

Sujit.
It will work ok on a new clutch, when the release bearing and carrier are at their full extent of travel, and the piston in the slave cylinder is at its furthest from the back of the cylinder. The trouble will start to arise as the centre plate becomes thinner with use. There will come a point when the over long pushrod will eventually push the piston to the very back of the cylinder. After that, the "Fingers" on the cover, and the release bearing will be constantly and increasingly brought together by the reduction in the thickness of the centre plate as it continues to wear. This will cause both to wear rapidly, and (if they last long enough!) eventually the clutch will start to slip.
Mike.

[sujitroy]

Sujit.
It will work ok on a new clutch, when the release bearing and carrier are at their full extent of travel, and the piston in the slave cylinder is at its furthest from the back of the cylinder. The trouble will start to arise as the centre plate becomes thinner with use. There will come a point when the over long pushrod will eventually push the piston to the very back of the cylinder. After that, the "Fingers" on the cover, and the release bearing will be constantly and increasingly brought together by the reduction in the thickness of the centre plate as it continues to wear. This will cause both to wear rapidly, and (if they last long enough!) eventually the clutch will start to slip.
Mike.

Mike. Thanks for the explanation. I will stick with the short one then.
Regards, Sujit