adjusting rocker arms/lifter help

[68 TT]

Originally Posted by knightowl73

ok it s doing this still with a brand new flex fan and spacer, the fan is correct rotation, and oil pressure is about 30psi at idle, maybe 40psi when revved. brand new 180 degree thermostat too. so a 88-94 waterpump will not bolt up to the stock older pulley? i was hoping to be going in the right direction but i guess i can rule that out.

My old 88 Suburban had a standard rotation water pump on it with a combination V-belt and ribbed belt accessory system so it is possible you have a standard rotation pump even being listed for an 88 vintage truck.

If your V-belt pulley fits over the fan studs on the water pump then the water pump is spinning the right direction unless somebody re-drilled the pulley or it has multiple bolt hole patterns on it.

Do you have a fan shroud on there?

How close is the fan to the radiator?

A flex fan is a huge waste of efficiency but should still cool the engine fine as long as you have a shroud and the blades are long enough to not leave a bunch of room between the ends of the blades and the fan shroud edge.