11-30-2016, 11:55 AM
My coach has had weak heat coming front the engine coolantpowered heater at the dash. The dash coolant temp gage has consistently read around 183 or so degrees. I've been through the whole system and everything seem to be properly hooked up and operating as designed. So what gives?
Using an IR temp gun, it seems my coach has 160 degree thermostats rather than the usual 180 degree ones. So, I've ordered the 180 ones. I have installed a new temp sensor for the dash gauge that seems to have dropped the indicated temp into the range of the IR indication.
I was originally concerned that changing thermostats would make any engine overheating issues worse, it won't because once the thermostat is wide open cooling is only limited by the effectiveness of the radiator and fans and willhave nothing to do with the thermostat temp setting. Also, all the information I found states that the engine is expected to run better at the higher temp. So hopefully I get a two-fer; more dash heat and a better running engine. That's just plain hot.
Using an IR temp gun, it seems my coach has 160 degree thermostats rather than the usual 180 degree ones. So, I've ordered the 180 ones. I have installed a new temp sensor for the dash gauge that seems to have dropped the indicated temp into the range of the IR indication.
I was originally concerned that changing thermostats would make any engine overheating issues worse, it won't because once the thermostat is wide open cooling is only limited by the effectiveness of the radiator and fans and willhave nothing to do with the thermostat temp setting. Also, all the information I found states that the engine is expected to run better at the higher temp. So hopefully I get a two-fer; more dash heat and a better running engine. That's just plain hot.
Jon Kabbe
1993 coach 337 with Civic towed