I recently rebuilt the lift and tilt spools on my 2003 T190 with foot controls and 2600 hrs.. I managed to get about 3 hours work in before a new problem developed. When operating the clam shell on my 4 in 1 bucket, the cylinder lifted, but wouldn't close. I also have a tilt plate behind the 4 in 1 which operates fine. My first thought was that it might be a loose wire, but when I looked to see, I saw that there was a significant oil leak which appeared to come from the lift spool, though it's a little tough to see with the mirror. I'm wondering if it could be the auxiliary spool that's leaking and if there's a possibility that the leaking would prevent the closing of the clam shell cylinder? Also, I find it hard to believe that the lift spool would be leaking since the rebuild went very easily with absolutely no problems, since the valve was mostly out of the machine and easily worked. Also, I'm positive that I didn't install the seals backwards. Frustrated in Philo!