1993/07/19 Caterpillar

Regulator Assemblies Available To Service Thermostatic Valve Groups{1355}

Usage:

G3508 (2JF),
G3512 (4KC),
G3516 (3RC) Engines

Regulator assemblies are available to the thermostatic valve groups on these engines. The thermostatic valve group regulates the water temperature by routing flow either directly to the water pump or through the heat exchanger before the water renters the aftercooler circuit.

The chart identifies the thermostatic valve groups, the respective regulator assemblies, and the operating temperatures for the particular engine applications. Information about the specific aftercooler water temperature for an engine is included in the Fuel Setting And Related Information in the Technical Marketing Information (TMI).

Illustration 1. 7W1497 or 7W6555 Thermostatic Valve Group.

Illustration 2. 7E4711 or 9Y8070 Thermostatic Valve Group.

Illustration 3. Regulator Assembly

Caterpillar Information System:

1993/07/19 Manifold Pressure Variation at Full Load/Constant Speed{1058}

1993/07/12 The Latest "Gas Engine Installation Drawings" Are Available{0374}

1993/07/12 Preventive Maintenance To Reduce Risk Of Stator Failure{1404,4453}

1993/07/12 Improved Voltmeters Available{7450}

1993/07/12 Magnetic Switches (Relays) May Be Intermittent{1400}

1993/07/05 New Cast Iron Inlet Adapter And Impeller For Water Pumps {1361}

1993/07/05 New Water Pump Groups Use Tapered Roller Bearing {1361}

1993/07/05 New Stronger Elbow Used In Marine And Fire Pump Engine Water Lines Groups {1380}

1993/07/05 False Logging Of 100-01 Low Oil Pressure, And 100-11 Very Low Oil Pressure Diagnostic Codes {1902}

1993/06/21 New Cylinder Head Assembly Provides Improved Valve Seat Retention{1100,1103}

1993/06/21 New G3500 Gas Engine Performance Manual Available{0376}

1993/06/21 Measuring "Dynamic Rack" Of Unit Injectors{0780}

1993/07/19 Prechamber Rust Removal{1106}

1993/07/26 Compressor Nut Torque For Schwitzer Turbochargers{1052}

1993/07/26 Engine Changes For 350 Hp{1022}

1993/07/26 Diesel Truck Engine Smoke Limits{1250}

1993/07/26 G3400 Engine Performance Manual{0376}

1993/07/26 New Exhaust Manifold End And Center Sections Used In Dry Type Exhaust Manifold Groups{1059}

1993/07/26 Improved Mounting Reduces Vibration To Liquid Level Switch{7470}

1993/07/26 New Flame Arrestor{1050}

1993/07/26 Service Life of Crankshaft Gears Can Be Extended{1204}

1993/08/02 New Tube Assemblies Used In Air Lines Group Allow Greater Movement{1058}

1993/08/02 Maintaining The Proper Coolant Level In The Radiator{1353}

1993/08/02 Battery Acid Fill Machine May Be Damaging Batteries{1401}