BODY AS-PISTON 3882310 - Caterpillar

3306C (7RJ1-Up, 9TL1-Up)Introduction
Extremely low temperatures below 0°C (32°F) give rise to additional starting problems. This results in excessive white smoke.The 104-3180, 106-1572, and 101-9885 Intake Manifold Heaters are used to increase the air temperature, in the intake manifold, to prevent the development of excessive white smoke during and immediately after engine starting.This preheating considerably improves the engine's cold starting ability at very low temperatures and ensures smooth engine operation within the shortest possible time.
This engine is equipped with a Flammstart fuel ignited inlet manifold heater for cold weather starting. Do not use other types of starting aids such as ether. Such use could result in an explosion and/or personal injury.
The heater plug is installed in the engine's intake manifold and is activated electrically to start the preheat cycle.Once the required temperature, at the heater plug element, is reached the dash mounted indicator light will go out and the engine can be cranked to start.During the cranking mode, a fuel solenoid valve directs diesel fuel to the heater plug nozzle. The nozzle meters diesel fuel onto the heater plug where it mixes with air and ignites. The air is now heated before entering the intake manifold.By maintaining the flame for a predetermined duration after engine start, the engine can warm up much more quickly and the white smoke that normally occurs during and immediately after engine starting is reduced to a minimum.The entire temperature dependent engine starting process is preprogrammed and is controlled automatically by the microprocessor.The system provides monitoring functions which switch off the system if the engine starts before the required heater plug temperature is reached, or if the engine fails to start within a 30 8 second period of engine cranking.Reference: Service Manual, SEBR0552 .. 3306C Diesel Truck Engine (7RJ1-Up) Service Manual, SENR6495 .. 3306C Diesel Truck Engine (9TL1-Up)Parts Manual, SEBP1990 .. 3306C Diesel Truck Engine (7RJ1-Up)Parts Manual, SEBP2269 .. 3306C Diesel Truck Engine (9TL1-Up)104-3180, 106-1572, and 101-9885 Heater Group Contents
The 104-3180, 106-1572, and 101-9885 Heater Groups have the following parts mounted on the engine: water temperature sensor, fuel solenoid, oil pressure switch, fuel supply line, wiring harness, and a seven-pin connector. To install these heater groups, the parts shown in chart below must be installed. See Air Inlet Manifold Heater System and Wiring Diagram for 104-7618 Installation Group illustrations for additional reference. Installing the 104-7618 Heater Group
Installing the 101-0612 Heater Plug
The 101-0612 Heater Plug MUST be installed in the air intake elbow UPSTREAM of the inlet manifold. The intake elbow MUST be removed before installation of the heater plug. Before removing the intake elbow inspect the area of installation for sufficient clearance between the cab/hood and the heater plug when it is installed.1. Remove the air intake elbow.If the air intake elbow is not provided with a suitably positioned casting boss, an adapter plate or boss for mounting the heater plug must be fabricated and welded in place: The fabricated adapter plate must be of the same material composition as the air intake elbow.For