Dave_E
Senior Member
Hi All,
I have a Northern Lights M643. Recently did a complete service on it (hadn't been used in many years). The unit did not come with a coolant recovery system, just an overflow tube from the radiator cap. Anyway, starts right up, runs like a kitten, but after not even 5 minutes of running, there is coolant coming out of the overflow tube. The unit is no where near it's 180 deg thermostat range yet. If I let it run, the coolant really starts to come out. What is causing this? I replaced the cap because the old one was rusty and the rubber was looking old and weak.
Dave
I have a Northern Lights M643. Recently did a complete service on it (hadn't been used in many years). The unit did not come with a coolant recovery system, just an overflow tube from the radiator cap. Anyway, starts right up, runs like a kitten, but after not even 5 minutes of running, there is coolant coming out of the overflow tube. The unit is no where near it's 180 deg thermostat range yet. If I let it run, the coolant really starts to come out. What is causing this? I replaced the cap because the old one was rusty and the rubber was looking old and weak.
Dave