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Rich
The A4 is a thermostat BYPASS engine .... meaning if the thermostat is CLOSED (bypassing the flow 'around' the engine) ... the entire flow of water is THROUGH the block. When the thermostat is OPEN, water BYPASSES the engine block.
You have that backwards NO water can flow through the block were in enters through the tee on the water jacket plate When the thermostat is closed other than a small amount through the air bleed hole in the thermostat
It ALLWAYS goes through the bypass to cool the exaust manifold
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1970 Cal 29 Sea Fever
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1981 J24 Tangent 2930
Tommays
Northport NY
If a dirty bottom slows you down what do you think it does to your boat
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Last edited by tommays; 11-11-2009 at 01:37 PM.
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