Fuel Cooler: Description and Operation

47-0005 Fuel Cooler

National versions (AUS),(J),(USA)





Example of fuel cooler fitted to engine
1, 2 Fuel return line
3, 4 Refrigerant return line
6 Outer pipe
7 Inner pipe
8 Insulating hose
9 AC compressor
75 Fuel cooler

A fuel cooler is installed to reduce the formation of vapour bubbles in the fuel system at high outside temperatures. The fuel cooler is located in the refrigerant return line between evaporator and AC compressor. When the engine is running, the excess fuel in the fuel distributor flows back pressureless through the fuel cooler into the fuel tank.

So long as the AC compressor is operating, heat is withdrawn from the fuel by the gaseous refrigerant which flows through the inner pipe of the fuel cooler.





Example model 201 up to 08/85
Fuel cooler at left wheelhouse
1 Fuel return line from fuel distributor
2 Fuel return line to fuel tank
75 Fuel cooler





Example models 107, 126 on engines 116, 117
Fuel cooler at left wheelhouse
1 Fuel return line from fuel distributor
2 Fuel return line to fuel tank
3, 4 Refrigerant return line
6 Outer pipe
7 Inner pipe
8 Insulating hose
75 Fuel cooler