Whelp, ran the boat pretty good this 4th with the new restricted push rods. Did a lot of cruising, did some tube and wake board towing, and ran it hard a couple nights.
First thing I noticed was oil temps. My oil temps seamed to climb a lot faster now, and climbed up into the 230-240* when cruising around 3K with only one other passenger. I didn't keep going, normally when it would get up that high i would just shut it down and float for a bit. I have a feeling the temp would have kept climbing. My water pressure when cruising around 3K was showing 5 PSI so I'm wondering if that could have been contributing? Normally i see closer to 10. My water temp was around 150, I looked down once and saw it closer to 160. Last year my water temps were closer to 140 and I didn't have this issue when cruising, normally it would get hot when beating on it and then i would cruise to cool it down...
Next, my oil pressure still sucks. So I'm thinking the problem has nothing to do with the grooves that were cut into the lifters. For some reason I have this gut feeling, and i've had it since the beginning of this problem, that it's the oil pump. The pump is a melling HV pump and this is my second one. The first one felt heavier, and the bolts were standard, This new one was metric and felt cheaper to me. I'm thinking it's time to pull the motor, drop the pan, and put a good pump on it... Maybe a nicer pan too.
Couple other questions... What causes excessive oil temps? I've been contemplating an oil cooler for a long time but I'm not sure if an oil cooler is really what i need or if it's going to just be something to hide another problem. I'd like to hunt down the root cause of this, figure out exactly whats happening and fix it, not hide it. If my oil temps were hot from hauling ass around all the time i could understand, but when cruising at 3K it just doesn't seam right to me.