were can i find a consistant source for finding diagrams and specific motor information on toyota 20r and 22r motors, I have repair manuals however it usally takes a combination of the 2 I have to get anything acomplished, I cannot find the cooling system diagrams for a '78 20r,.
i just wish it had a pic of the exhaust side of the motor, i want to know if the coolant line coming off the timing cover under the exhaust is in or out.
I thought the early 20r didn't have any provision for the line, the later ones were capped off as the heater hose hooked to the bottom radiator hose connection on the radiator or into the metal pipe like used on the 4wd with the 2 piece hose assembly. The later engines used the pipe that routed under the manifold. I guess it would be considered an inlet as the heater return line connects to it.
