New Coolant Temperature Regulator Has Flat Washer-Type By-Pass Valve{1355}
Usage:
3208 Truck and Marine Engines, 613B Tractors and 225 Excavators
Description of Change: A coolant temperature regulator with a washer-type by-pass valve is now used on the above models. Formerly, a coolant temperature regulator with a hat-type by-pass valve was used. With the hat-type by-pass valve, contact between the valve and the cover can sometimes prevent correct operation of the regulator.
Adaptable As: Direct replacement.
Caterpillar Information System:
1978/11/27 New Hose Has More Resistance To Heat{1074}
1978/11/20 A Washer With Closer Tolerances Is Now Used In The Governor And Fuel Pump Drive Group{1288,7462}
1978/11/20 Sender Unit For Engine Oil Pressure Gauge Moved To New Location On Truck Cab{7455}
1978/11/20 Single Coil Shut-Off Solenoid Used In Place Of Dual (Two) Coil Shut-Off Solenoid{1259}
1978/11/13 6V106 Post, 6V107 Stop And 6V108 Cap Now Available For Parts Service Of The 7S1100 Hose Press Arrangement{0660}
1978/11/06 New Control Cover Gives Better Control Of Exhaust Gas Recirculation System{1080,1250}
1978/11/06 Improvement Made To Solenoid In Electric Shut-Off Group{1259}
1978/10/30 6V92 Plug Socket Is Available For The Removal And Installation Of Lubricant Plugs{0612}
1978/10/30 New Fuel Injection Nozzles Are Used In 3208 Truck Engines When Equipped With EGR{1254}
1978/10/23 In The Future There Will Be A Common Warning System For All Caterpillar Machines{7450,7301,7400}
1978/10/23 5P8690 Fixture Group And 5P8691 Socket Are Available For Easier Reconditioning Of 5M4169 Cam Followers{0622}
1978/10/23 Conversion Of Testers In Earlier 1P3550 Wiring Harness Tester Groups To Use Later Test Harness Assemblies With Receptacle Connections{0650,0651,1408}
1978/12/04 Stronger Fan Adjustment Bracket Used In Fan Drive Group{1358,1359}
1978/12/04 Some Force Is Needed To Turn The Drive Shaft In All Tyrone Gear-Type Pumps; New Torque Value For Body Bolts Of Tyrone Gear-Type Pumps{5073}
1978/12/04 New Design Brace Used In 4N2905 Air Cleaner Group{1051}
1978/12/04 New Exhaust Valve Has Improved Three-Piece Construction{1105}
1978/12/04 90° Elbow Added To Air Cleaner Group To Prevent Damage To The Air Filter Service Indicator{1051,7452}
1978/12/11 New Piston Groups Use Keystone-Type Piston Rings And Have Improved Design Of Valve Pockets{1214,1215}
1978/12/11 New Electric Service Meter Used{7480}
1978/12/18 Improved Cylinder Head Gasket Now Used{1101,1201}
1978/12/18 New Switch Assembly Used With Exhaust Gas Recirculation System{1080}
1978/12/18 Longer Bolts Are Now Used To Fasten The Engine Fan Assembly To The Adapter{1356}
1978/12/18 The FT530 Puller Now Can Do The Work Of Three Pullers{0621}
1978/12/18 Caution: Do Not Change Orifice In Water Outlet Of Auxiliary Pump Group{1371}