This is out first year using pneumatics on our robots and we are having a large issue to wear our piston clamps the goal but does not tilt the goal enough for our intake an ideas pictures will be added soon.
Yes, pictures will probably help diagnose the problems.
For starters, how many pistons are powering your clamp?
Your lever seems to be pulling inwards instead of pushing down on the Mobile Goal, If you want it to tilt, I recommend trying to lower your fulcrum and have the lever push down to make the Mobile Goal tilt.
Just 1 because of our space restrictions
I would highly suggest running a second piston. It seems like your problem is power. Tilting the goal will require large forces, so running a 2nd piston will help push the goal up. Second, or angling, I would recommend running a goal funnel that fits the hexagonal shape of the goal using plastic. This will help keep the angle and point of contact for the goal clamp consistent. Designs of this can be found online.
nobody has yet mentioned this, but your current mounting style gives the pistons 0 mechanical advantage, infact they have to work harder to tilt the goal.
Id mess with your configuration on your mogo mech, as typically you want to build your scoring mechanism around the mogo mech and not vice versa
Along with all the other suggestions in the thread, using elastic bands to aid your pneumatics also helps. When we did that with our robot it started working perfectly