Not sure what to do at this point.

Ok so I have a 1987 Mazda b2000 with the 2.2... bought it 6 years ago and it smoked badly when I got it and I knew it needed valve stem seals... replaced them 2 summers ago and truck smoked less but wasnt where I was happy with it and I also did a compression test on it and cylinder #1 had 145 #2 50 #3 135 and #4 had 110. So I was frustrated with the truck and ripped the head off and had all intentions to put new rings in it but due to time and some other things happening I was not able to repair it so the truck sat for almost 2 years. Now just 3 weeks ago I finally got my rings in and I noticed a few of my valves didn't seat that well so I bought some valve grinding compound and seated them in I didn't need to take much of before they was seated in. So I got the head on with new rings and I only had 60 lbs of compression through all the cylinders. I pulled the head back off and looked at my rocker arms and noticed the lifter inside the rocker arms are froze completely solid and from what I understand those are suppose to be able to move slightly. So I broke each one free so it can move up and down slightly pulled them out and cleaned them all up. Put them all back in put assembled the top end again. Did a compression test on it and all my cylinders had between 115- 120 lbs and the truck was not smoking and running somewhat on the rougher side due to the carb being another problem. But the truck started up fast every time. Now I let the truck set over night with plans for the next day to get the carb finished up on and when I tried starting it didn't want to start so I checked the spark and gas and both are good but compression was between 80 and 95 through all the cylinders again. Once again I pulled off my valve cover and pulled the rocker arms and again all the lifters are froze solid. I know the play between the lifter and the valve should be between .06 and .024 and I cant even get a .02 through them. What should I do? I am at a loss and don't want to give up on this truck but I don't want to put a lot of money out into it either. Thanks all info appreciated.

Where are u located at I have pretty much a brand new head for sale it has about 150 miles on it , it does have1 bent valve in it where I was having compression problems and had the timing off the cylinder walls were cracked so I just bought 2 more trucks another 2200 and a 2600i

Where are u located at I have pretty much a brand new head for sale it has about 150 miles on it , it does have1 bent valve in it where I was having compression problems and had the timing off the cylinder walls were cracked so I just bought 2 more trucks another 2200 and a 2600i

I would go with a thinner grade oil n replace all lifters........
Did u remember if you put the oil pressure valve the right way? It goe right i between the head n block if backwards will spit oil out the breather hose..... if all is well then check out the oil pressure usually the dash oil light will flicker.......ps be shure to soak the oil lifters in oil for a few hrs to be shure they are not running dry....

B2200's have hydraulic lifters not solid,unless someone has replaced them.Hydraulics are not adjustable.As someone already stated, change to a lighter oil like a 5w-20,add a half bottle of Seafoam to the oil and the other half to the tank, fill the truck up and run it until u are nearly out of gas,change the oil and filter and see what happens.The Seafoam will cause it to smoke a little .Also, when putting the new rings in,did u crosshatch the cylinder walls?It takes a few hundred miles for rings to seat fully so maybe u havent run it long enough.bj

ok cool thanks for the help guys I will be trying some thinner oil... yes i crosshatched the cylinders.

Just a thought too, note I am not a machinist or engine builder but if you ground out the head to seal the valves could this potentially allow the valves to seat higher in the head thus creating less clearance between the rocker and the valve? Like I said just a complete thought.

You could do that, but there is a sweet spot in the center of the valve stem, that you want the rocker to operate in. If you push the valve up higher into the head, you will achieve a tighter clearance, but it potentially moves the rocker off to the side of the sweet spot on the valve stem, and creates lateral pressure on the stem, causing excess wear to the valve and/or guide.

Geometry is a bitch, 'aint it?!