----- Original Message -----
Sent: Monday, October 06, 2003 1:26 PM
Subject: [oletrucks] T-stat, cooling system general info...
> Hi all,
> I'm trying to get some basic info regarding how my cooling system
> works, or should work.
> I have a totally new system, including motor, heater core, water pump,
> hoses and radiator.
> 1- How does a T-stat work? I have a 180 degree T-stat. Does it *start*
> to open at 180, or is it fully open at 180?
> 2- I have a factory temp gauge in the front of the motor and an
> aftermarket temp gauge in the back of the motor. My back one always
> reads a few degrees hotter then my front one, which I would expect.
> However, I start to get worried when I see it creep up around or above
> 210. Given that the system is pressurized and the boiling point of H20
> is 212 at sea level, it seems like the system should be able to operate
> at well above 212. Is this correct?
I looked this up for a friend, and it said pressurising a system to 15 PSI
raised the boiling temp 45 degrees. I don't know if this included 50/50
antifreeze/warer or not. The water/antifreeze mixture does raise the boiling
temp. But I think there must be a problem with your system if the temp goes
above 212. Bob K in PHX, AZ.
> 3- What is the ideal fan set up? I have a non-flex fan w/o a clutch.
> It is set all the way inside my shroud. I have heard that it should
> sit 1/3 out and 2/3 inside the shroud. Is this correct? if so, why?
> Should I run a clutch? Should I just ditch the engine driven fan and go
> with an electric fan?
> 4- What is the opinion on auxilliary pusher fans? Are they just a
> solution to a problem that is not being addressed?
> I know I've asked a lot of questions, but I can't seem to find a
> general concesensus on these.
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959