Improved Valve Cover Seal{1107}
Usage:
D379, D398, D399 Industrial And Generator Set Engines;
G379, G398, G399 Natural Gas Engines With Ebullient Cooling
Description of Change: The above engines now have an improved valve cover seal. The new seal is made of a silicone material that is more heat resistance than the material used in the former gasket.
Adaptable To: The new 2W7134 Seal is a direct replacement for the former 2N3597 Seal in ebullient cooled engines. The new seal is in effect with the serial numbers shown in the chart.
Caterpillar Information System:
1982/10/18 Changes In Engine RPM; Governor Does Not Operate Correctly{1264}
1982/10/18 New Coolant Level Switch Used{7470,1354}
1982/10/11 New Main And Connecting Rod Bearings Have A Thicker Layer Of Lead-Tin Overlay (Surface Material){1230,1203,1219}
1982/10/11 Wider Crankshaft Gear Used{1202,1204,1206}
1982/10/11 Hose Presses Can Now Be Used To Service 9.52 mm (.375") JIC Couplings{0623,0624,7554}
1982/10/11 Improvement To 1N4679 Control Rod Assembly Increases Range Of Adjustment For Rack{1257}
1982/10/11 Extended Storage Procedures{1000,3300}
1982/10/11 New Fasteners Used For Fuel Injection Lines{1252}
1982/10/11 Engine Slobbering; New Piston And Rings Used{1214,1215,1000,1225,1104,1052}
1982/10/11 Altronic III Ignition Systems Available{1560}
1982/10/11 Bulged Capsule-Type Fuel Nozzles{1254}
1982/10/11 Field Conversion Procedure For EPA Certified On-Highway Truck And On-Highway Vehicle Engines{0374,0375,7557,1250}
1982/10/18 Tools For Use With 7S1100 Hydraulic Press To Assemble Couplings On 31.8 mm (1.25") I.D. XT-6 Hose{0624,7554}
1982/10/18 New Crankshaft Seal Group Has Assembled Rear Seal And Wear Sleeve{1161}
1982/10/18 Fuel In The Cooling System Or Coolant In The Engine Oil Can Result From Cracked Fuel Nozzle Adapter{1106}
1982/10/18 Additional 3208 Remanufactured Truck Engines Available{1000,1200}
1982/10/18 FT1698 Driver Can Be Used For Reconditioning Of Governor Housing{0626,0665,1264,1286}
1982/10/25 Resurfaced Cylinder BlocksAnd Heads{1201,1101,1000}
1982/10/25 New 6V6080 Torque Multiplier Available{0614}
1982/10/25 Reference Chart for Engine Improvements{0374,1000}
1982/10/25 Cold Weather Engine Operation{1105,1208,1355,1380}
1982/10/25 Improvements To Generator-Mounted Control Panels{4450,7400}
1982/10/25 New Guard Assemblies Used{1360,1381}
1982/10/25 Reconditioning Of Oil Pump Covers{1304}