[Healeys] Over heating and adding additional core tubes to the existing radiator
coudesluijs at chello.nl
Tue Jan 14 01:38:32 MST 2020
Check your temperature gauge first for accuracy and go from there. 212º
F (100ºC) at normal speed cannot be right so I am pretty sure the
If the radiator is still the original one have a new core installed with
max. capacity. You can never have to much. A competent radiator shop
will know what to do. Cleaning out a radiator is not really a good option.
Does your fan operate via a thermo-switch or is it manually operated?
Does the fan turn the right way.
Is your thermostat the right spec in combination with the thermo-switch
and working properly?
In principle the temperature should be within small limits of the
opening temperature of the thermostat most of the time, e.g. if you have
a 82ºC thermostat the temp. gauge should indicate something around
82-85ºC, however in stop & go traffic it can rise until the
thermo-switch lets the electric fan cut in which should be slightly less
than 100ºC. The temperature should fall than to about 87-90ºC when the
thermo-switch should cut out at about 5ºC over the opening temperature
of the thermostat..
Op 14-1-2020 om 00:36 schreef Robert Begani:
> I have added a electric push fan to the radiator and a shovel or
> deflector to direct the flow of the air to the engine. It works to
> keep the coolant temperature at or below 212 degrees when driving down
> the road at 2000 to 4000 rpms. However, the coolant temperature will
> rise if you drive slower or stop and go. While I believe there is
> nothing wrong with the radiator, I believe it needs more cooling
> capacity. How many more core or tubes can be installed in the
> standard BJ8 radiator. For those of you who have done this
> modification, how much does it cost and does it work to reduce the
> coolant temperature? I would rather not install an aluminum radiator
> because they do not seem to work or do not reduce the coolant temperature.
> Another modification I am considering is a manifold and header blanket
> to keep the heat from the exhaust from boiling the fuel in the float
> bowls. Have any of you found success with this modification?
> Bob Begani
> BJ8 67
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