Quote:
Originally Posted by sorner
Good question George. I took the o-ring out to match it up with a new one so it's not pictured in there but the whole thing appears to be one piece and then there's a groove in the metal behind it where the o-ring goes. I'm inclined to just leave it be because there is a hard plastic (grayish) ring behind the cracked part and in front of the o-ring that seems intact and may be the actual wiper if the slit part is not a crack and is there for removal. I haven't found a good picture of any newer ones to compare it to. I have two of these cylinders and the other one on my 1864 looks like it has a crack/slit as well. It also has a bit of a leak and will be next up to rebuild if I can get this one working, but it's not nearly as bad of a leaker as this one. It just weeps a little at the shaft. This one dripped and left a puddle around the shaft even while sitting.
--edit---
I added a zoomed and cropped picture of the one I already posted. It doesn't look like a split for removal, it looks like it has cracked.
Attachment 88215 |
It does look cracked.
It could be a rod wiper but thinking it is a support to guide the rod in the bore and prevent the "O" ring from excessive wear and support the rod so the chrome does not have any contact with the metal gland.
A linear "bearing" so to speak, would make sense to me.
I'd spin one up on the lathe, made of nylon or Teflon, old days it would be brass prolly..
I'd think it should be a close tolerance on the rod.