kearney
Well Known Member
Canadian builders may be pleased to learn that:
"Ottawa TCCA HQ has agreed the requirement of the exemption for a “gascolator” can be met by a device that functions OR by a system that is designed to separate water and particulate contamination from fuel. "
This means that a gascolator "device" need not be installed if the fuel system will separate water and contaminants. This is of significance for RV builders who have high pressure fuel systems.
As gascolators in RVs will always be located higher than the lowest point in the fuel system (the tank outlet), they cannot remove water from fuel (pre-flight) unless the laws of physics are repealed and water flows uphill....
Also, the filter media in gascolators is small (a few square inches) and too coarse (110+ microns)to protect injectors.
The fuel tank drain and properly sized inline filters meet the requirements and are now deemed acceptable under either the Exemption to CAR 549 or CAR 549.
For me this was quite important as most gascolators cannot withstand the fuel pressures in systems with electronic fuel injection. No can it adequately protect the injectors from sediment fouling.
"Ottawa TCCA HQ has agreed the requirement of the exemption for a “gascolator” can be met by a device that functions OR by a system that is designed to separate water and particulate contamination from fuel. "
This means that a gascolator "device" need not be installed if the fuel system will separate water and contaminants. This is of significance for RV builders who have high pressure fuel systems.
As gascolators in RVs will always be located higher than the lowest point in the fuel system (the tank outlet), they cannot remove water from fuel (pre-flight) unless the laws of physics are repealed and water flows uphill....
Also, the filter media in gascolators is small (a few square inches) and too coarse (110+ microns)to protect injectors.
The fuel tank drain and properly sized inline filters meet the requirements and are now deemed acceptable under either the Exemption to CAR 549 or CAR 549.
For me this was quite important as most gascolators cannot withstand the fuel pressures in systems with electronic fuel injection. No can it adequately protect the injectors from sediment fouling.