Check For Interference Between Water Temperature Regulator And Cylinder Head Bore{1355}
Usage:
3300 Series Engines
Reports indicate that some 3300 Series Engines with 7N208 Water Temperature Regulators have experienced overcooling or cooling system pressure surges. In many cases this problem is caused by interference between the water temperature regulator guide tabs and the bore in the cylinder head. Interference occurs when the guide tabs are bent outward. When the guide tabs are bent slightly inward, there is no chance of the interference between the tabs and the cylinder head.
Location of guide tabs on 7N208 Water Temperature Regulator.
Caterpillar Information System:
1985/05/13 Improved Radiator Cores Available{1350,1353}
1985/05/13 Preventing Transmission Manual Switch Failures{3168}
1985/05/13 Hydramechanical Governor Fuel Setting Information{1289,1250}
1985/05/13 New Piston Seal For 139.7 mm (5.50") Hydraulic Cylinders{5456,5457,5104,5458}
1985/05/06 Remanufactured Fuel Ratio Controls Are Available In U.S. And Canada{1278,7754}
1985/05/06 Be Sure Correct Piston Rings Are Used On 3400 Series Engines{1215,1214}
1985/05/06 New Bolt And Seal For Brake Make-Up Oil Tank{5056}
1985/05/06 System To Find Internal Fuel Leakage{1250}
1985/05/06 Folded Core Radiators Used In Cooling Systems{1353,1350,1351}
1985/05/06 New Bearing Housings Available For Turbochargers{1052,1053,1056}
1985/05/06 New Battery Cable Crimping Die Available{0600}
1985/05/06 Installation Instructions For New Magnetic Switch{1408}
1985/05/20 New Spark Resistant Air Starting Motor Group Has Serviceable Parts{1451}
1985/05/20 Make Sure Back-Up Alarm Switch Is Correctly Installed{7406}
1985/05/20 New Temperature Recorder Group (Crayons) Indicate Surface Temperature{0776}
1985/05/27 Rebuilt Axial Piston Pumps{5070}
1985/05/27 Remanufactured Bare Cylinder Heads (U.S. And Canada){1101,7754}
1985/05/27 Identification Of Track Motor Universal Joint Assemblies{3251,3201,5058}
1985/05/27 Low Charge Indicator Added To Rear Suspension Cylinders{7213}
1985/05/27 Use Caterpillar 6V50 Engine Timing Indicator For Accurate Readings{0782,0785,0775}
1985/05/27 Obtaining Correct Bolt Torque On Ground Engaging Tools{6800,7553}
1985/05/27 Additional Repair Parts Available For Fire Suppression Actuators{7400,7401}
1985/05/27 Correct Procedure To Check Tapered Bearing End Clearances{7551,3257,3300,3000}
1985/06/03 New Line Relief Valves Have Higher Leak Pressures And Less Noise{5453,5463,5464,5550}