Info needed: 1967 M38A1 Lubrication?

[rob love]

Temp sending unit is on the back right of the head.

I'll have to look the cap up at work today. Fours and sevens are the numbers most often mixed up by dyslexics, so you never trust either.

To adjust the fuel mixture, you have to have the engine idling at operating temperature. You turn the screw in until the engine starts to stumble (usually less than one turn left), then turn the srew slowly back out until you reach the highest RPM. If the engine does not stumble while being turned in, then you have a carb problem. DO NOT jam the screw with force all the way in, as you will damage the seat of the needle and ruin it. In the end the screw should be out about 1-1/2 turns. Ideally, it is set with an exhaust analyzer so you get the mixture right, but those are getting hard to find these days, since every new vehicle has that built in to the emissions systems.