Quote:
Originally Posted by Derek UK
Use of the auto cooler for oil not advised. You'd need an adaptor to go behind the filter and the rad isn't designed to take engine oil pressure.
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I agree not advised officially but....
you would need an oil take off adaptor behind the filter.
As for the radiator is not capable of withstanding engine oil pressure is pure fantasy.
The engine oil pressure in a B30 engine varies between 37 and 85 PSI, that's genuine Volvo figures from factory literature.
The Borg Warner BW 35 transmission fitted to the 164 has the oil feed to the cooler in the radiator taken from the line pressure and this pressure varies between 55 and 160psi, that said there is a cooler bypass valve which limits the oil pressure to the cooler so its not subject to the 160 psi.
55 psi at idle speed
160psi at kickdown before the line pressure cut back
75 psi at kickdown after the line pressure cutback
the burst pressure for the pipe used in the radiator is way above 85psi (standard 8mm copper pipe burst pressure is around 3045 psi and 2030 psi for 10mm pipe)
Also the temperatures involved in the transmission fluid are much higher than the engine oil
So the cooler is more than capable than handling the engine oil circuit because the pressure is a lot less and at lower temperatures.
I have also used the in radiator oil cooler to cool the engine oil in the past with no problems ever occurring.