La1153 Curl Cylinder

[Mman]

Hello, new to the forum.
My question is: while replacing the piston seals, I noticed that there were no o-rings or seals on the piston to rod junction. There are two beveled areas on the rod that are underneath where the piston sits, but when I disassembled it, there were no seals/o-rings present. Is this normal? It seems that oil could get by this area. The bucket was leaking off a little too much is why I did the rebuild in the first place. Thanks

 

[North Idaho Wolfman]

If the nut is tightened properly the chance of fluid bypassing that point is very minimal.
Putting any kind of flexible seal in there would fail from movement of the piston on the shaft.
If your worried about it, put a little Teflon paste on the shaft before installing the piston.

 

[Mman]

Wolfman, The nut did seem loose compared to what I have heard other folks say (500 ft Lbs). It looks like if the nut were really tight, the piston would not wiggle much. The piston seals appeared to be OK - I thought it might this union that was bypassing.
Thanks for the prompt response.