1999 df70 running hot

[hadaveha]

I have a 1999 df70 thats making me crazy, it started having a weak stream and the manifold felt hot to the touch so I took it out and replaced the waterpump, I normally do this once a year so I allready had one, well even with new water pump waek stream and really hot manifold, so I tok the hose loose from the bottom of them manifold cleaned everything nothing blocking the stream, so I pulled the manifold and replaced the gasket I had a very small leak I wanted to fix anyway, still the manifold is getting really hot. pulled the water valve and the themostat checked them and I even put everything back together without the water valve and themostat to see if ether one was blocking the flow, still weak stream and hot manifold, I put yet another water pump in made sure fins were going the right direction. I am stumped its now without any thermostat or water valve and I still dont seem to be moving water. Please anyone will I have a few strands of hair left

[boats.net]

Try blowing compressed air through the water system, keep the valve in because that controls the water pressure.

[hadaveha]

i will try that first of the week is it ok to leave out the thermostat i run in 75 to 80 degree water

[boats.net]

You should put them back in, but you can wait till after you find your problem.

[hadaveha]

once the water is pushed higher than the water tube comming from the water pump where does it go is it a chamber under the manifold I am loosing alot of water out of the bolts where u disconect the lower unit should there be that much water in the middle unit