1980/12/15 Caterpillar

Be Sure To Cut The Center Gasket Even With Top Surface Of Oil Pan Sections To Prevent Oil Leakage{1302}

Usage:

D346, D348, D349 Off-Highway Truck Engines;
641B, 651B, 657B, 772, 776, D10 Tractors;
773, 777 Trucks;
992 Loaders

According to field reports, some customers have had problems with leakage of engine oil between the cylinder block and oil pan at the location of the center gasket between the oil pan sections. This gasket normally extends above the top surface of the oil pan sections so it can be cut even with the surface during assembly. If this is not done, the extra gasket material will prevent a good seal between the oil pan and cylinder block at this location.

For this reason, be sure to check the gasket during installation. After the two sections of the oil pan are fastened together, cut the gasket even with the top surface of the oil pan sections. Then install the oil pan on the engine.

Caterpillar Information System:

1980/12/15 New Bearing Sizes And Identification Codes For AiResearch Remanufactured Turbocharger Cartridges{1053}

1980/12/01 6V4085 Torque Multiplier Group Available{0614}

1980/12/01 Inspect All Engine Oil And Fuel Filter Elements Before Installation{1000,1261,1318}

1980/12/01 Different O-Ring Seal Now Used On The Oil Pump Suction Tube{1307,1304}

1980/12/01 New Front Housing Assembly And Gaskets Used{1162,1166,1151}

1980/12/01 New Service Handle Kit Permits Cab Door To Be Opened From Inside While Locked (Fastened With Lock){7308,7301}

1980/12/01 Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}

1980/12/01 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage And Damage To Manifold Gaskets And Mounting Studs{1059,1061}

1980/12/01 Direct Inquiry Service Information Retrieval System (SIRS) Available To U.S. And Canadian Dealers{0374}

1980/11/24 Replacement Wheel Available For Service Of 6V97 Engine Stand Group{0626}

1980/11/24 6V4008 Valve Seat Extractor Now Available{1103,0622}

1980/11/24 New Gasket Improves Operation Of Shut-Off Groups{7418,7403}

1980/12/15 New Control Valve Group Used To Prevent Ratchet-Type Noise And Rough Clutch Engagement{3313}

1980/12/15 New Turbocharger, Turbocharger Oil Lines Group And Aftercooler Air Lines Group Used{1052,1058,1063,1307,1309}

1980/12/15 Replacement Timing Belts And Variable Belt For Fuel Injection Test Benches Available From Caterpillar{0652,1250}

1980/12/22 6V4019 Camshaft Pilot Group Is Available{0622,1210,1211,1201}

1980/12/22 Tires Are Filled With Nitrogen (N2){4203}

1980/12/22 Exhaust Elbow Support Improved{1059,1061}

1980/12/22 New Oil Pan Gasket Has Silicone Bead For Better Seal{1302}

1980/12/22 Wrong Turbocharger Group Shown In Parts Book{1052,0374}

1981/01/12 Improvements Made To 5P9718 And 6V186 Disc Pads Used During Gasket Removal{0675,0670}

1981/01/19 New Connecting Rod And Main Bearings Have A Thicker Coating (Layer) Of Lead-Tin Overlay{1230,1219,1203}

1981/01/19 Thicker Layer Of Chrome Now Used On Governor Spring Guide To Extend Its Service Life{1264}

1981/01/19 6V3141 And 6V3142 Puller Plates Available For Removal Of Tube And Gland From Front Suspension Groups{7201,0621}