1993 grand caravan 3.3 ltr..please help????

I have a 1993 Dodge Grande Caravan with a 3.3 Ltr engine. It developed a bad squeek in the engine I took it in to the dodge garadge here and they told me it was a water punp making the noise. So i took it home and got a water pump for it. eeven though i never heard a water pump squeel. Just for the heck of it I took off the serpentine belt and started the engine to see if it still squeeled. It still squeeled. after much searching I removed the front valve cover because there was absolutly no oil up there. I ran the motor with out the valve cover on and it did not show any signs of lubercation getting to the rockers and push rods. so i manially pored oil on them and wow what a difference it quited down like a church mouse. except there is a valve tapping noise somewhere in the middle of the head. what has me so puzzled is the fact it has awsome oil pressure on the dash gauage. and the back side is quite so at least the back side must be getting oil.. does any one know what is wrong with it and how i can fix it? how is the oil suppose to get to the rockers and rail... thew push rods? like ford and chevy.. but there is no holes in the rockers for the oil to come threw? or does the oil go into the rail? and a clogged rail???? please help thanks

Imagine that, a Dodge dealer making a bad call... Great move on the belt. I'll remember that one.

Being a driveway mechanic and never being inside an engine, the only thing I can think of is to pour a can of oil flush (Rislone or Gunk make it) into it and let it run for a while. Might get the clog out. Beyond that, once you figure out how the oil is supposed to get there, pour some directly in the port or ream it out with a stiff wire. Or...one thing I've done to try to flush metal chips out of an engine/oil pan without removing the pan is to drain the oil, then pour a couple gallons of paint thinner into the oil fill hole with the oil drain plug out. Once thats done refill it with the cheapest oil you can find, run it for ten minutes, then drain it. That should get any residual thinner out. Then refill with your normal oil. Works on the chips. Might work on a clog. I'm sure somebody will chime in with more detailed info by the end of the day. If not, see what happens. Please let us know the fix.

How about using synthetic oil for a while. I understand because it's so thin, it will leak past seales on older engines. Might "leak" past a clog and eventually dislodge it. Just a thought.

The synth trick won't work, but RIP's first procedure should do the trick. However, it's likely the van will develop some nice internal and external leaks afterward. If the van should begin smoking, avoid long trips.

sounds like you have cam bearing problems they sometimes spin on this engine and then the oil holes dont line up anymore to let the oil to the head