[Saloon-lovers] Overheating and such

Saloons
1

Paul, thanks for the prompt reply. I remember reading somewhere that you
could place a flow restrictor in the radiator bypass hose to make sure that
more coolant passes through the radiator.
Anyone out there got specs on this?

Don Keiller,
1962 Jaguar 3.4L
Cambridge,
UK–
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2

In reply to a message from Keiller, Donald sent Wed 23 Sep 2009:

Hello Don,

Jaguar recommended a bung with a 3/16’’ hole to restrict the bypass
in the E Type Competition Manual. I use a brass NPT fitting with a
1/4’’ hole that sits on the top of the bypass intake on the early
water pump. Whatever you use, make sure it cannot fall into the
pump. On early cars with the correct manifold and thermostat, the
effect is small, it becomes a necessity with later manifold swaps
or regular thermostats. I would focus on getting your fan to run
properly and perhaps running a higher water content coolant. It is
not ‘‘overheating’’ until the coolant boils.

Paul–
The original message included these comments:

Paul, thanks for the prompt reply. I remember reading somewhere that you
could place a flow restrictor in the radiator bypass hose to make sure that
more coolant passes through the radiator.
Anyone out there got specs on this?
Don Keiller,

–
PS
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