2.4.1 Air crossover tube
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2.4.1 Air crossover tube
The early air crossover tube has no vent tube. With the addition of positive crankcase ventilation in February 1943 a vent tube was added which is connected to the late style oil filler via a rubber hose secured with two screw type band clamps. Both styles of crossover tube have a block “ F ” on the upright between the cylinder head and the tube.There is a very small script “ f ” in the flat area on the top of the tube. Finish: Early black gloss enamel, later O.D. when the PCV tube was added. The Air cleaner is connected to the crossover tube with a heavy, black accordion type air hose retained at each end with a two wire hose clamp. A rubber or felt grommet is installed in the round hole in the crossover tube upright. The ignition secondary wires pass through this grommet on their way from the distributor to the spark plugs.
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