Today I was out running the old machine around moving some manure and pushing a few trees.
I always noticed that the needle on the transmission pressure gauge bounced a lot but never gave it much thought. I have noticed now that when I have it in gear (any gear) and give it throttle it will peak up to 200 psi (needle steady) then 3-4 seconds later I start to hear a sound like compressed air (thinking air in the charging pump or converter?) and the needle will drop off to 180 or so and start bouncing again. Starting to wonder as mentioned earlier if I don't have a suction leak or restriction in the suction line to the charging pump. Overall today it ran good but the air temp was 65 degrees. It was slow to move on startup again for the first few feet of movement. I think as the weather cools I will be able to get this figured out.