nbenjamin said:Just thinking does anyone know what temp the heater block keep the engine at when pluged in. Its -25 c outside. Im just curious.
Let's do some estimated math. Isn't this stuff taught anymore?MichEnvoyGuy said:I thought for sure by now, an hour and 15 minutes after plugging it in, I'd be at least at 90*f especially seeing that the block heater is rated for 400w!
the roadie said:Block heaters are meant to be left on all night to make sure a 0 degree engine block is kept near 30 degrees, at which temp the fuel has a better chance to vaporize and ignite. Not to get the block up to 100 degrees where the coolant is going to heat the cabin any faster after engine start.
the roadie said:I wasn't being sarcastic. I would have used purple font for that.
I'm seriously fascinated by real-world data that makes me re-examine a mathematical model I thought was close to being right. Thx!
nbenjamin said:if its -10deg c out side shouldn't my scangauge show a water temp of -10 ? , its shows 4 deg every morning , even if i plug in my heater block .
Wyle said:Thank goodness for coolant. At -10 deg C you'd have ice in your block not liquid water. And since water starts to EXPAND below 4 deg C, you'd be blowing freeze plugs (if our engines even have them) but probably not at -10C. "Antifreeze" in the coolant system does just that. It drops the freezing point of the coolant mixture well below 0 deg C (depending on the mix).
If your coolant temp is 4 deg C every morning, either the heated coolant hasn't circulated to where the sensor is or your block heater possibly has the built in thermostat that has been mentioned.
nbenjamin said:Do you really think that I being Canadian would think that there is water in my engine ?? I used the the term water temp only because that's what it's called in the scangauge definitions for engine coolant.
My heater block does not have the thermostat and if the heated coolant has not circulated why is my scangauge showing 4 deg if it's -10 outside. That was my question Also it shows 4 even when the heater is not plugged in.
nbenjamin said:But I thnk I figured it out
Wyle said:My bad. Reading too many noob posts on the OS.