Re: Fluctuating guages

From: ScottH216@aol.com
Date: Tue Jan 11 2000 - 20:24:27 EST


<< let us all remember that Mark is a fellow premagger. His fan is not
 clutched, and everything on his truck is belt driven.
 Mark, I say check that T-stat one more time.. sometimes they get stuck
 half open and weird stuff like that. >>

Fan clutches have been around since long before the Magnum engine. And
they're all belt driven, the clutch just allows the fan to free wheel when
it's not needed, reducing drag on the engine. (Although an electric fan is
even less mechanical drag, they don't pull as much air as a fan clutch
arrangment.) If the fan clutch goes bad, it'll freewheel when it's not
supposed to, and not pull the air through the radiator. If the thermostat is
stuck shut, the temp would continue to climb when you're moving, since engine
rpm goes up. If it's stuck open, the engine will take longer to warm up, but
it will run at about normal temperature.

Unless I'm overlooking something really obvious... :)

Scott
'94 318
<A HREF="http://members.aol.com/McKennaRacing/">McKennaRacing.com</A>



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