Cooling Systems (Water, Oil And Driver) - Lotus Europa Twin Cam Owner's Manual

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1 ½ in. width brake shoes and still maintain the desired rear track dimension. This entailed
recessing center of plate approximately 1/8 in. so that shoes were 1/8 in. closer to center of the
car. (Same position as with standard backplates.)
Aeroquip steel braided brake lines were used throughout and routed through the cockpit
to prevent damage and facilitate inspection.
COOLING SYSTEMS
Water Cooling
The standard radiator in conjunction with the engine oil coolers used was found to be
adequate even when racing in ambient temperature as high as l15°F.
The electric fan was discarded and aluminum ducting fabricated to divert all airflow
through the radiator. Aluminum tubing was substituted for the steel water tubes running through
the chassis backbone. The 15 psi pressurized system-utilized an expansion tank and 50 percent
Ethylene Glycol coolant with inhibitors. The system was filled through a threaded cap in the
thermostat housing. The-capillary type temperature gauge sensing bulb was mounted in the top
radiator tank. Care must be taken to ensure all air is evacuated from the system.