1977/08/22 Caterpillar

Problems With Oil Or Fuel Filters{1261,1318}

Usage:

When there is a defect or a problem with either the oil or the fuel filter, the correct procedure is to send a report with an explanation of the problem to Caterpillar. Since this information will be used to correct the problem, your report must be complete.

For the report to be complete, it must have:

1. Description of the problem or defect

2. Part number of the filter or filters in the problem

3. Date Code

4. Supplier code

The location of the last three items on some filters is shown in the illustration.

NOTE: It is possible that some filters will not have the date code or supplier code in the locations shown. For example, the 4H8792 Fuel Filter Element Assembly has the date code 180° from the Caterpillar corporate symbol.

If the filter does not show the date or Supplier code, say so in your report.

Caterpillar Information System:

1977/08/22 Be Sure To Drain Oil In BrakeSaver At Every Lubricating Oil Change Period{1155,1300}

1977/08/22 Improved Coolant Seal For Connection Between Cylinder Heads{1100,1350}

1977/08/22 Tools Now Available To Ream And/Or Hone 0.500" (12.70 mm) Diameter Valve Guides{0663}

1977/08/22 New Main And Connecting Rod Bearings Are Made Of Higher Strength Material{1230}

1977/08/15 Tools From Caterpillar To Test And Charge Air Conditioners And For Repair Of Frigidaire Compressors{7320,0651}

1977/08/08 Clean Bolt Holes In Cylinder Block Before Cylinder Heads Are Installed{1101,1201}

1977/08/08 New Air Inlet Manifold Has Longer Bolt Bosses With More Thread Depth To Keep Bolts Tight{1058}

1977/08/08 Spacers Added To Alternator Group To Improve The Mounting{1405}

1977/08/08 Larger Boss Used In Cylinder Block So Bolt Hole Will Not Be Drilled Into Coolant Passage{1201,1350}

1977/08/08 New Vickers Pump Design{5055}

1977/08/08 Correct Adjustment Of Fuel Shut-Off Solenoid Shaft Can Prevent Failures{1259}

1977/07/11 New Inserts To Repair Cylinder Liner Seats On D353 Engine Blocks{1201,1216,1217,0663,0653}

1977/08/22 Installation Of Generator Sets On Rigid Bases{4450}

1977/08/29 New Clutch Groups Used In Front Power Take-Offs; Service Kits Available{3055}

1977/08/29 Improved Cylinder Block With Spacer Plates Used With Improved Cylinder Heads And Cylinder Head Gaskets{1101,1201,1221}

1977/08/29 New Tube Assemblies For Turbocharger Oil Lines; New Base Assemblies For Oil Filters{1052,1306,1307}

1977/08/29 Engine Valve Springs Are Now Made Of Stronger Steel{1108}

1977/08/29 Anti-Corrosion And Break-In Coatings{0374,3256}

1977/08/29 More Bolts Hold Flywheel Housing Group{1157,1162}

1977/09/05 Installation Procedure For Crankshaft Wear Sleeves Changed{1202,1160,1161}

1977/09/05 Check For Extra Holes In Crankshaft Flange If Oil Leaks From Between The Flywheel And Crankshaft Flange{1156,1202}

1977/09/05 Field Repair Of Cooler Cores Made Of Aluminium{1063,1374,1375}

1977/09/12 The Discrepancy Card Has Changed{0374}

1977/09/12 New Refrigerant Compressors And Kits With Improved Seals; Conversion Of Earlier Units{7320}