1996/10/01 Caterpillar

Marine Engine Reverse Rotation Harness Code{1408}

Usage:

3508B (2BM117-Up, 7SM52-Up) 3512B (7HM172-Up, 4TN71-Up),
3516B (8CN142-Up, 8KN91-Up) Marine Engines

The above reverse rotation marine propulsion engines have a unique harness code to designate reverse rotation.

Reverse rotation is enabled by connecting the 998-BR lead to pin-40 of the Electronic Control Module (ECM), 40-pin C-Key.

NOTE: Service replacement harnesses are coded for standard rotation and must be changed if installed on a reverse rotation engine.

If an engine harness is coded incorrectly, the engine may start/run but will run poorly. It may run on only one bank of cylinders.

When an engine is queried via the Electronic Technician (ET), the incorrect rotation will show on the configuration screen. It will show STANDARD instead of REVERSE or REVERSE instead of STANDARD. Diagnostic codes 190-F07 and 342-F07 should show on the active diagnostic screen.

Caterpillar Information System:

1996/10/01 Improved Oil Cooler Core Assembly{1378}

1996/10/01 Conversion Gas Valve Kits Available{1278}

1996/10/01 An Improved O-Ring Seal And Proper Use Of Adapter Locks Reduces Oil Leaks{1252}

1996/10/01 Three Ring Piston Body Assembly Available To Replace The Two Ring Piston Body Assembly{1214}

1996/10/01 Improvements To Prevent Water From Entering The Flywheel Housing{1157}

1996/10/01 Improved Marine Engine Inlet Valves{1105}

1996/10/01 Improved Breather Vent Helps Prevent Water Entry Into Altronic III Magnetos{1552}

1996/09/23 Help Available For PC Based Service Tools Used For All Electronic Engines {1902}

1996/09/23 Recommended Customer Communications Module (CCM) Electrical Power Source {1926}

1996/09/23 Procedure To Install A Protective Fuse For Slave Relay Number 1 In The Engine Supervisory System (ESS) Panel {1900}

1996/09/23 New Clamp Assembly Used In Engine Oil Lines Groups {1307}

1996/09/23 Caterpillar High Efficiency Fuel Filters Help Provide Maximum Fuel Pump And Fuel Injector Life {1261}

1996/10/01 Increased Data Link Limit{1901,1926,1927,7490}

1996/10/01 133-5211 Information Film (Universal Symbol Reference) Available{7451}

1996/10/01 Engine Monitoring System Update{7490}

1996/10/01 Cylinder Heads Are Serialized{1101}

1996/10/01 Special Instructions Available To Provide Calibration, Testing, And Replacement Information For Temperature And Pressure Contactors On 3600 Diesel Engines{7400}

1996/11/01 Proper Procedure For Servicing And Cleaning The Fuel Injection Pump{1251}

1996/11/01 Improved Fuel Pump Plunger Helps Prevent Plunger And Sleeve Scuffing In Service 8.5 mm Fuel Injection Pump Assembly For Sleeve Metering Fuel System (SMFS) Governor And Fuel Injection Pump Groups{1251,1286}

1996/11/01 Description Of August 1996 (AUG96) Personality Module Changes{1902}

1996/11/01 New Tube Assemblies Allow Greater Movement In Air Lines Group{1059}

1996/11/01 Procedure For Installing Steel Core Gasket At The Front Housing And The Flywheel Housing{1151,1157,1162}

1996/11/01 Seal Kits For Hydraulic Unit Injector Pump Groups Available{1250,1714}

1996/11/01 Fuel Injection Pump Bushings Have New Groove Adjacent To Load Ring {1251}