Oil Distribution Flanges: The oil distribution flanges are bolted to the front surface of each cylinder head. They provide amounting location for the VCC solenoids as well as the advance-retard oil ports from the solenoids to the intake camshafts. M18 0812A A B C
ENGINE MANAGEMENT SYSTEM – V 18-2-46 DESCRIPTION AND OPERATION Camshafts Each intake camshaft has two oil ports separated by three sealing rings on their forward ends. The ports direct pressurized oil from the oil distribution flange to the inner workings of the VCC transmission. Each camshaft has REVERSE threaded bores in their centres for the attachment of the timing chain sprockets on the exhaust cams and the VCC transmissions for each intake camshaft as shown.