New Spark Plug Provides Better Heat Resistance {1555}
Usage:
G3606 (3XF),
G3608 (4WF),
G3612 (1YG),
G3616 (4CG) Engines
Description of Change: A new spark plug is now available for use in the above G3600 Engines. The new spark plug is more reliable due to its capacity for greater heat resistance.
Adaptable To: The new 134-0976 Spark Plug replaces the former 124-7380 Spark Plug. The new 134-0976 Spark Plug is contained within the 7C-0447, 7C-0448, 7C-0449, and 7C-0450 Ignition Groups.
Caterpillar Information System:
1997/02/17 New Relay Modules Replace Relay Assembly In Junction Box Groups {1400,1408}
1997/02/17 Improved Tube Assemblies And Electronic Control Group (Pressure Module) Improves Reliability {1058,1285}
1997/02/17 New Rod Ends Used In Exhaust Bypass Groups {1057,1250}
1997/02/17 New Harness Assembly For 3500B Engines {1408}
1997/02/17 Installation Of Piston Pin Retainer {1215}
1997/02/17 Premachined Valve Seat Inserts And Precision Valve Guide Increase Valve Life {1103,1104}
1997/02/17 New Exhaust Manifold Sections Contain A Port To Install Temperature Sensors {1059,1921}
1997/02/17 Basic Electronic Control Group (3408 Hi Performance Marine-E Rating) Improvement {1920}
1997/02/17 New Auxiliary Oil Filter Groups Reduce The Amount Of Air Accumulating In The Auxiliary Oil Filter Tank {1318}
1997/02/17 New IMPCO 400 Single Varifuel Carburetor Replaces Former IMPCO 200D Double Carburetor {1266}
1997/01/22 Recommendation For Connecting Rod Bearing Replacement{1219}
1997/01/22 Guidelines For Reusability Of Cylinder Head Studs, Main Bearing Cap Studs, Main Bearing Cap Cross Tie Bolts, And Connecting Rod Cap Bolts And Nuts{1100,1218,1230}
1997/03/01 New Turbocharger Group And Air Cleaner Mounting Group Provide Improved Reliability{1051,1052}
1997/03/01 New O-Ring Seal Used In Hydraulically Actuated Electronic Unit Injector (HEUI) Pump Group{1714}
1997/03/01 Diode Removed From Junction Box Group{1400,1417}
1997/03/01 Caterpillar Part Numbers Are Used For XQ Rental, Generator Set Circuit Breakers{4461}
1997/03/01 Product Support Literature Available{0374,1000}
1997/03/01 Marine Transmission Oil Pressure Sensor Location{3323}
1997/03/01 4C-8180 Timing Tool Group Required For Checking And Adjusting Fuel Injection Timing On 3408C And 3412C High Performance Marine Engines{1250}
1997/03/01 Improved Bushing O-Ring Seal Available For Injection Pump Groups{1251}
1997/03/01 Improvements Made To Remanufactured 0R-3008 Fuel Transfer Pump{1256}
1997/03/01 The Components Of The 7C-5001, 100-8227, And 104-6775 Gas Pressure Regulator Groups Are Available For Parts Service{1270}
1997/03/01 New Terminal-Mounted Resistor Assembly Allows Proper Loading Of Digital Diagnostic Tool Data Line{1417}
1997/03/01 New "E" Rating Of 1350 Horsepower Available For 3412C High Performance Marine Engine{1902}