1999/03/01 Caterpillar

New Piston With 4 mm Wide Oil Ring Reduces Light Load Oil Consumption {1214,1215,1225}

Usage:

3304B (3TC, 1PS, 83Z),
3306B (1CZ, 1RS, 8JJ, 85Z, 9NR) Generator Set Engines;
PGDE300 (8NS) Generator Sets

Description of Change: A new piston with a 4 mm wide oil ring is now used on these engines. The 4 mm wide oil ring reduces light load oil consumption.

Adaptable To: Use the following chart to correctly identify the rod and piston group or piston body for these engines:

The rod and piston groups listed in the chart include the piston with piston rings, wrist pin and retainers, assembled to the connecting rod with rod bearing.

The piston bodies listed in the chart do not include piston rings. Part numbers for piston rings are:

* 6I-0497 Piston Oil Ring

* 2W-1708 Piston Intermediate Ring

* 2W-1707 Piston Top Ring

Both the 15.0 : 1 and 16.0 : 1 compression ratio pistons use the same piston rings.

The new pistons and oil rings were effective with 3304B (1PS00625-Up); 3306B (1CZ01219-Up, 1RS00630-Up, 8JJ00512-Up, 85Z14469-Up, 9NR03283-Up). The new pistons with 4 mm wide oil rings are adaptable to all 3304, 3304B, 3306, and 3306B generator set engines. The 4 mm wide oil ring has been used on the 3306C On-Highway Truck Engine for several years.

Caterpillar Information System:

1999/03/01 Use 170-9227 Reamer Shims To Aid In Reaming 3100 Engine Injector Sleeves {1250}

1999/03/01 New Top Piston Rings Available {1215}

1999/02/01 Use 152-7143 Cable Assembly For Flash-Programming Generator Status Control Module{4450}

1999/02/01 Caterpillar Now Has Parts Support For Previously Non-Supported Custom Parts{7567}

1999/02/01 Particle Sensor Group Improved{7430}

1999/02/01 Woodward Hand Held Programmers (Control Programmers) Available For Use With Woodward 700 Series Controllers (Governor Control Groups){1930,1908}

1999/02/01 Improvements Made On Gas Engine Wiring Groups{1900,1907}

1999/02/01 New Woodward EGB13P Reverse Acting Actuator Assembly{1716}

1999/02/01 New Valve Improves Fuel Pressure Regulator Adjustment On 3600 Diesel Engines{1715}

1999/02/01 New Relief Valves Used In Prelube Lines Groups And Starting Motor Air Pressure Regulator Groups{1451,1469}

1999/02/01 Extended Life Coolant (ELC) Now Preferred For 3600 Diesel Engines{1395}

1999/02/01 New Intermittent Prelube Basic Pump Group And Bracket Assembly Used{1319}

1999/03/01 Use 145-5247 And 147-2675 Wear Sleeve Installer To Install Crankshaft Wear Sleeves {1202}

1999/03/01 New Flywheel Housing Gasket For 3406 Engines {1157}

1999/03/01 Use 132-8263 Spanner Wrench To Remove And Install Terminal Assembly In Electronic Ignition System (EIS) Transformer Group {0712,1409}

1999/03/01 New Engine Pressure Sensors Available {1916,1917,1922,1923,1924}

1999/03/01 Use 146-2727 Tool Group To Monitor And Check Engine Performance On 3600 Engines {1000}

1999/03/01 New "Long Core" Aftercooler Provides Improved High Ambient Temperature Performance {1064}

1999/03/01 New O-Ring Seals Help Prevent Coolant Leaks In High Jacket Water Temperature Applications {1100,7555}

1999/03/01 Special Instructions For Converting To Hydraulic Actuator System (Hydrax) Now Available {1716}

1999/03/01 10W Hydraulic Oil Recommended For G3600 Hydraulic Actuators (HYDRAX) {5050,5095}

1999/04/01 New Caterpillar High Efficiency Fuel Filters With STAY CLEAN VALVES® Replace All Standard Fuel Filters In February Of 1999{1261}

1999/04/01 New 153-9630 Sensor Test Group Adapter Kit For DataView Now Available{1000}

1999/04/01 Use 156-1060 Gas And 156-1070 Gas And Diesel Engine Analyzer To Check Emissions{1088,0781}