Smaller Quantity Of Oil Now Used In Engine Oil Pan; Prevents Contact Between Crankshaft And Oil{1318}
Usage:
3408 Truck Engines ( 28V)
Description of Change: A smaller quantity of lubricating oil is now used in 3408 Truck Engines, so the crankshaft will not make contact with the oil. Because of this change, use of a different oil level gauge assembly is necessary.
On the new gauge assemblies, the full mark is now equal to 44 quarts (41.6 Litres) and the low mark is equal to 37 quarts (35 Litres). On the former gauge assemblies, the full mark was equal to 48 quarts (45.4 Litres) and the low mark was equal to 39 quarts (36.9 Litres).
Caterpillar Information System:
1978/01/30 Do Not Change Factory Fuel Or Speed Settings On Truck Engines Unless New Settings Are Certified Under Applicable EPA Regulations{0336,0337,1257}
1978/01/30 Stronger Front Support Assembly{1153}
1978/01/30 New Water Pump Cover Has A Baffle And Wall To Send Coolant Flow From Bypass Line Directly Into Water Pump{1361}
1978/01/30 Oil Strainer (Screen) Added To Turbocharger Thrust Bearing{1052,1053}
1978/01/30 Valve Damage Can Be Caused By Short Intervals Of Engine Operation In Very Cold Temperatures{1105,1208}
1978/01/23 Change In Design Of Engine Governor, Fuel Injection And Transfer Pump Groups, And Fuel Ratio Control Groups{1264,1278,1286}
1978/01/23 Design Of Governor Control Linkage Changed; Less Force Is Needed To Move The Accelerator Pedal{1265,1269}
1978/01/16 Improved Gasket Prevents Oil Leakage From The Governor{1264}
1978/01/16 Turbine Housing For Turbocharger Is Stronger{1052}
1978/01/16 New Turbine Housings Are The Replacement For Three Former Turbine Housings Used On Schwitzer Turbochargers{1052}
1978/01/16 Tolerance Added To Valve Clearance Specifications{1105,0374}
1978/01/16 Improved Front Pulley And Damper Groups Use New Damper Adapter With Larger Diameter Bolt Circle For Pulley Bolts{1205}
1978/02/06 Successful Engine Service-3208 Engine Booklet Is Available{1000}
1978/02/06 Attachment Groups Put Corrosion Inhibitor Directly Into Cooling System{1350}
1978/02/06 New Water Temperature Regulator Opens At 180°F (82°C){1350,1355,7304}
1978/02/06 Probable Causes Of Low Fuel Delivery During Testing On Fuel Injection Test Benches{0650,1250}
1978/02/13 Replacement Seal Group For Water Pump Impeller Now Has All The Seal Parts Plus An Installation Tool{1361,0622}
1978/02/13 Complete Set Of Contact Points For Dial Indicators Is Now Available In One Group{0653}
1978/02/27 New Seal Assembly With Longer Ferrule Prevents Damage To Ferrule During Cylinder Head Installation{1100,1101,1300}
1978/02/27 Fabricated Adapters Permit Horizontal Mounting Of Transmissions On 1P2420 Transmission Repair Stand{0640}
1978/02/27 Replacement Seals And Wear Sleeves Now Available As A Crankshaft Seal Kit{1202,1160,1161}
1978/02/27 Stronger Exhaust Manifold Gasket Now Used{1059}
1978/02/27 Improved Fuel Priming Pump Assembly Has Better Sealing Characteristics; Repair Kit Available For Knob{1258}
1978/02/27 Modification Of Oil Pan For Installation Of Oil Sump Heater{1302}