641 Front end loader uneven lift

[Alpine Cheesehead]

I have a superior font end loader on my 641. It's got a front mounted pump off the crank shaft pulley. In general the hydraulics seem to work quite well. However, the right side lift arm raises AND falls slower than the left. The two bucket curl hydraulics work perfect.
The seal on that right side piston is a bit wet but not a gusher. I figure this is just part of the character of a 58 year old loader. Any ideas on the uneven lift?

It doesn't bother me too much but I don't want to be putting uneven stress on things either - maybe it's not a concern. What do you think?

I took some pics of my new toy I will post soon. You've all helped me so much on this rehab on the old gal. Thanks again!

 

[old]

That can be caused by a bent cylinder rod or a hose that is going bad and has a restriction in it which clogs and slows the flow of the fluid. Uneven lift can be the death of a loader because it can/will bend or crack the frame over time. You could try moving the hoses to see if the problem moves with the hose or stays with the cylinder

 

[JMOR]

A dual acting cylinder can leak inside & show absolutely no signs of fluid on the exterior.

 

[gears]

I'd swap cyls and see if the problem follows or if it stays -that way you have half as many hose connections to worry about.

 

[souNdguy]

same size cyl?

 

[Alpine Cheesehead]

Thank you gentlemen. I'll start trying swapping some things.