Coolant temps
Author
Discussion

mgbond

Original Poster:

6,749 posts

261 months

Sunday 18th September 2011
quotequote all
Just after some advice:

I'm calibrating my ECU to my coolant sensor. I have a thermocouple in (i think) just after the thermostat by the sensor and one on the input to the rad.

On general running (idle) the temp at the engine is reading around 92 (I have the ECU reading it a bit higher at 95). I have the fans coming in at 99 and off at 97. The temp at the rad reads 95 when the fans come on and when they go off this temp has reduced to 81.

I know the MBE never tells you on the dial what temp you read but does this sound ok?

My Dial only reads general running as 80 and when fans come on its showing only just over 80. (think my dial has had it as it also sticks sometimes).

Bondy

F.C.

3,901 posts

237 months

Sunday 18th September 2011
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Sounds OK to me, water only boils circa 120 degrees in a pressurised automotive system.

andygtt

8,345 posts

293 months

Monday 19th September 2011
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i set mine to come on at 96 and off at 92 or something very similar... so you sound about right.

BTW the MBE can be programmed to show the temp guage the correct reading, thats what mine has although how acuarate the sensor is I have no idea.