Trojan Throttle Controls
The throttle levers are connected to the carburetors by push-pull cables similar to those on the reverse gears. They must be so adjusted that the carburetor throttle plate opens fully, and at closed throttle position the idle adjusting screw must seat firmly against the stop.
Inertia Starter Drives - PrestoLite
The Folo-Thru type drive currently used on many starting motors has brought about difficulty due to a misunderstanding of operating and lack of information on proper servicing. This fact has been reflected by the number of drives returned for warranty which are fully operative.
The Folo-Thru drive is designed to lock and remain in the extended or engaged position until the engine starts and reaches approximately 400 to 500 RPM. The drive to flywheel ratio is fifteen to one. When the engine is turning 400 RPM the starter drive gear is turning 6,000 RPM. If the drive is locked in the extended position, it has to be reinstalled on the engine and the engine started or the drive must be turned in excess of 6,000 RPM by a wire wheel installed on an electric bench grinder to make it disengage. The illustrations below show a drive in the engaged and disengaged position.
The reason for the pinion locking in the engaged position is to assure that the starter continues to crank until the engine has started, thus preventing false starts. This is accomplished by using a spring loaded pin which rides on one of the pinion screw threads and drops into a hole when the pinion is in the fully engaged position. This locks the pinion in the engaged position. When the engine starts, the flywheel of the engine drives the starter pinion. A clutch mechanism is built into the pinion to protect the starter from excessive RPM.
The clutch allows the pinion to turn faster or overrun the armature shaft. When engine RPM reaches 400 to 500 RPM, the pinion spins fast enough to create the needed centrifugal force to throw the spring loaded pin out of the hole in the shaft and allow the pinion to disengage. Do not condemn a drive until it has been tried in actual operation and proven faulty.
LM318 Firing Order - CW / CCW
Steering Systems (typical Trojan)