Might sound silly, but is the thermostat in the right way??
-----Original Message-----
From: malcolm cooper [mailto:[EMAIL PROTECTED]]
Sent: Sunday, April 23, 2000 14:20
To: [EMAIL PROTECTED]
Subject: Re: cooling system trouble
Just thinking?
If the rad was half blocked ,and,if you have the thermostat in thats
even less water flow through the engine so it might heat up.
Half blocked rad no thermostat = more water flow thru engine,hence runs
colder.
Does the engine over heat with out the thermostat at speed?e.g 80Mhp.Or
does it run even colder??..
What type of water pump and fan do you use?
I found the visc's(what ever) fan ,the engine runs hotter at high speed
than it would if it had a 510 fan on it.
Malcolm
Chris I Dobbins wrote:
>
> Has anyone expereinced a problem like this:
> Without a thermostat, my 510 runs cold even after an hour in traffic.
> With a thermostat, it overheats in about 10 minutes. I have tested the
> thermostat in a pot of water on the stove with a thermometer and it
> works. The water pump is brand new. If I take off the radiater cap
> without the thermostat in place I can see water flowing through well, but
> with the thermostat in the water doesn't move at all. The lower radiater
> hose is not collapsing and neither are kinked. I just seem to never get
> the thermostat to open in the car. The car had 190 degree Farenheit
> thermostat when the trouble started. I replace it with a 180 and it is
> still there. So right now I am driving it without a thermostat. The car
> doesn't have any major modifications and everything else seems to be in
> excellent shape. How do I fix it?
> Thanks,
> 1969 Datsun 510 wagon
> Chris
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