COVER GP-AIR INLET 1473446 - Caterpillar

3T-8724 Jacket Water Heater Group
3114 ... 2ZF, 2FG, 97Z3116 ... 98Z, 4TF3126 ... 1WM3204 ... 45V, 7YJ3208 ... 03Z A 3114, 3116, or 3126 engine with a rearward facing turbocharger turbine MUST have a shield group installed to protect the jacket water heater group from excessive heat. Refer to 4P-1603 Shield Group in this instruction for the installation procedures.A 240V/1000 Watt jacket water heater is available for all the engines listed. For 3114, 3116 and 3204 engines, refer to "Installation (Inline Engines ONLY)" in this instruction, for general installation procedures. Installation (Inline Engines ONLY)
Typical view of jacket water heater group. Drain Engine Cooland and Remove Cylinder Block Core Plug(s) All reference to LEFT side or RIGHT side is made as viewed from the flywheel end of the engine.1. Remove the cylinder block core plug from the appropriate side(s) of the block depending on the engine model to drain coolant. Take care to NOT damage the core plug bore when removing the core plug. The installation of the element assembly requires a water and pressure tight seal for the correct operation of the jacket water heater group.2. Remove any rust and scale deposits from the core plug bore. The installation of the heater's element requires a compression fit of an O-ring at the core plug bore. The core plug bore must have a thirty degree inward sloping chamfer to allow the O-ring to properly seal. Inspect the core plug bore to determine if any machining is required. Remove any sharp edges from the bore to prevent damage to the O-ring. Position Element Assembly3. The position of the element assembly for installation is dependent on the engine model. 3114, 3116:Position the element assembly slightly off vertical.Refer to 3114 (Right Side), and 3116 (Right Side), in this instruction, for jacket water heater location and element orientation. 3204:Position the element assembly vertically.Refer to 3204 (Right Side), 3208 (Right Side), and 3208 (Left Side), in this instruction for jacket water heater location and element orientation.4. Apply Ethylene Glycol antifreeze on the rubber O-ring on the heater body. Use Ethylene Glycol antifreeze ONLY as an installation lubricant. Do NOT use Propylene Glycol antifreeze, silicone, grease, oil, liquid soap or any other type of lubricant.5. Orientate the heater as defined in Step 3 and insert into the block.Install a 11/4 inch socket (1/2 inch drive) over the head of the heater. The socket is used as a driver.Tap or wedge the heater into the block until the outer edge is firmly seated against the block. Be sure that the heater is started squarely, or the O-ring could be cut.6. Install cap as shown for element assembly. The cap is used as a dust cover when cord assembly is removed.7. Install cord assembly.Align the terminals in cord assembly with the terminals of element assembly.Tighten nut to a torque of 8 2 N m (72 18 lb in)8. Refill with engine coolant. Do NOT reuse heater if it is removed