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Old 21st October 2019, 12:56   #39
SD1too
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

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Quote:
Originally Posted by racing green rover View Post
... a drip from the bypass i put on to bypass the oil cooler ...
Pete, unless you have oil and coolant mixing in the cooler, you should reconnect it.
Quote:
Can even really tiny weeps create airlocks in the cooling system
They will prevent the system from pressurising properly which results in unstable and high running temperatures. That is what you're experiencing.

Simon
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