TucsonHooligan
Well-known member
1964 Falcon with a stock 170 motor (pertronix ignition). Starts right up, idles smooth, basically runs like a champ for the first 10 minutes. Once it warms up, i get a rod knock at higher rpms. When cruising at about 55 on the freeway, its audible when I maintain speed. If I accelerate or cecellerate, it goes away. I've tried heavier motor oil to no avail. Its fine as an around town cruiser, but makes a helluva racket on the freeway. Also, at those speeds, it heats up and runs toward the "H" on my temp gauge. Regular driving it stays semi-cool, in the middle of the gauge, but jumps up as soon as I get on it. It stands to reason, I suppose, but what can I do, for both the rod knock and the overheating? It has been 107 degrees average here over the last few days, and will remain like that till late august I'm sure. I already put a 160 thermostat in it to no avail. Aluminum Radiator? Electric fan? Different type of coolant? Fan shroud? Help me out here guys.