EA82 runs HOT

Dinkum · Post by **Dinkum** » Sun Jan 17, 2010 3:11 am

hey my 91 L series with a carb EA82 runs hot under when ever i use it for off road use. i mean really hot. im not thrashing it eitehr.
i have checked the obvious like radiator,coolant, fan and thermo and no dramas there
so anyone got any ideas because i dont want to cook the old girl
Cheers
Dave

steptoe · Post by **steptoe** » Sun Jan 17, 2010 7:36 am

How have you checked those items? Present and accounted for? Have you had someone flush and clean radiator observing cores flowing correctly with a tank off? Reduced cores flowing can be a cause, of course. Colant level is an easy one.Electric fan cuts in when hot and off again, another no brainer. The thermostat really needs to be brought to the boil in hot water, not just dump hot water on it. Another simple, cheap and cheerful is to replace your radiator cap with a newie. New genuine might just last longer than the readily available other brands. Then there is the question of the water pump actually pumping. I disconnect a heater hose and run car to watch actual flow.

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Gannon · Post by **Gannon** » Sun Jan 17, 2010 7:37 am

Have you still got the belt driven fan or have you replaced it with an electric fan?

The original belt fan draws much more air than any electrical fan will.

Dinkum · Post by **Dinkum** » Sun Jan 17, 2010 4:41 pm

yes it still has belt driven fan with the thermo as an extra.
i have found the offender, the heater has been disconnected and the hose was kinked pretty bad restricting coolant flow, longer hose has sorted it out.
cheers fellas

phillatdarwin · Post by **phillatdarwin** » Mon Jan 18, 2010 1:30 pm

with my i find that the thermostat was not opening rip the guts out and fixed a cool day but on a hot day it runs hot as the water flows to fast just try a new thermostat first and go from there .
it not a head ??

phillatdarwin · Post by **phillatdarwin** » Mon Jan 18, 2010 1:31 pm

and i do not think it wood be the heater hose as if the heater is not turned on it wood be the same .

steptoe · Post by **steptoe** » Mon Jan 18, 2010 4:04 pm

heater hose tap has a bypaass don't it? Must have kinked the bypass function

phillatdarwin · Post by **phillatdarwin** » Mon Jan 18, 2010 10:21 pm

has it .
i do not know about the bypass, sorry

Busdriver · Post by **Busdriver** » Tue Jan 19, 2010 5:52 pm

There is no heater tap on one of those, only a flap on the heater box to turn the airflow on or off. That would mean that it circulates all the time, so if the heater core was bypassed and the hose bypassing it was kinked shut, then the coolant would not circulate properly.