I have to replace some of the hoses on my Sabre 28 including a bilge duct. As I understand the purpose of a bilge blower, it is to remove gas fumes from the A-4 which would suggest placement of the exhaust duct on the carburator side where the gas lines and exhaust mainfold is located.
As gas fumes are denser than air, it seems like the exhaust duct should be on the bilge floor (i.e. under the carburator).
If this is accurate, then one would think that the intake hose, which does not have a blower, would go over the engine somewhere (anywhere really).
However, I have read about folks punning the exhaust duct over the engine and the intake duct low in the bilge. The intent is to draw off heat in the engine compartment.
Where should I locate the ducts?
Steve
As gas fumes are denser than air, it seems like the exhaust duct should be on the bilge floor (i.e. under the carburator).
If this is accurate, then one would think that the intake hose, which does not have a blower, would go over the engine somewhere (anywhere really).
However, I have read about folks punning the exhaust duct over the engine and the intake duct low in the bilge. The intent is to draw off heat in the engine compartment.
Where should I locate the ducts?
Steve
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