Ok ,I know it has ben gone over before.But I can't find it. I have an IP that apears to be leaking from the 12 point plug in the hydraulic head.A little info..It will not leak at idle or high idle,only under load.it has good power in 1st thru 3rd. 4th is a struggle to 5th.about now the fuel is being sprayed all over the side and under truck from the fan.it is hard to start in cool weather.It idles at 800 and is a little rough.I installed this pump(this could be the problem) the pump that was on it would not idle and was imposable to start without ether and the governor never kicked in.it also smoked black like an old train.despite it looking brand new I pulled it.so at idle it has about 40-45 lbs fuel pressure at filters.on a less than reliable gauge.This is all I know.