[Vwdiesel] Direction of coolant flow in radiator

Wade Yorke wade at carsand.com
Wed Sep 1 20:23:11 EDT 2004

I have a Vanagon converted to 1.9TD.  When I run at about 3500 rpm on 
the highway the water temperature gauge gradually increases until the 
overheat light comes on.  I checked the coolant hose arrangement and it 
seems that the hose from the head goes to the top of the radiator 
instead of the bottom as shown in the Bentley manual.  I would have 
thought that hot water entering the top would be correct as it would 
have a tendency to drop as it cooled.
If the hoses are in fact reversed, do you think it could be the reason 
for the high coolant temperatures when the engine is under load?

Wade Yorke
'84 Westy  1.9TD

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