Originally Posted by seeker333
i don't think this pump is user servicable. i couldnt even open mine.
yes, it sounds like the seal has become unseated and is binding.
fortunately these pumps are inexpensive.
The black plastic piece on top of the barrel unscrews. Gives you access to the guts.
jcwitte: Heating of the barrel is normal. You get that anytime you compress air. The other problems are unrelated to it. You probably need a new o-ring like Bekologist says.