i replaced the rubber return hose cause it was leaking a little, there has been a puddle in the morning under the forklift. i filled the system back up, went up and down a couple of times with the forks and noticed that at the top where the return sarts, next to the piston, it spits out a nice amount out of the metal return line when going up.. only at its almost highest point to the highest point. i took a pic.. just dont know how to post one on here...

id like to fix this myself, i am a automobile mechanic so i dunno much about hydraulics but i can definately fix stuff.

its a very old propane forklift but she works great.
much appreciated if someone can help.