Willys F134 Coolant By Pass Hose

[bmorgil]

You are correct dg, good catch! The F134 has a bypass. You need it to help keep air out of the system and to allow a small amount of water to flow around the intake valves when the thermostat is closed. I was thinking the L134. There should be a plug or a valve in the rear of the head for a heater hose and a plug in the pump. Those were used for the heater on both the L and F.