If The Fuel Setting Dimension Is More Than 7.00 MM, Remove The End Play Of The Camshaft To Make The Fuel Setting{1257,1286}
Usage:
3306 Engines;
980B Loaders
On some of the models shown above, it is difficult to adjust the fuel setting if the dimension is more than 7.00 mm. If end play (free movement on the center line) of the fuel injection pump camshaft is toward the governor, the end play causes a restriction on the flyweight lever and prevents correct adjustment of the fuel setting. An easy way to make the fuel setting adjustment is to remove the service meter and push on the end of the fuel injection pump camshaft. This removes the end play during the adjustment procedure.
Caterpillar Information System:
1977/10/10 Improved Oversize And Undersize Connecting Rod And Main Bearings With Higher Strength Aluminum Alloy{1203,1219,1230}
1977/10/10 Use Only The Larger Size Inserts To Make A Repair To Cylinder Block Counterbores For Cylinder Liners{1201,1216,1217}
1977/10/10 Troubleshooting The Tachometer System Of The 4S6553 Engine Instrument Group{0651}
1977/10/10 New Front Housing Has Stronger Boss For Alternator{1151}
1977/10/10 Fuel Transfer Pump Shaft With Chromium Plate{1256}
1977/10/10 Be Sure To Drain Oil From The BrakeSaver At Every Lubricating Oil Change Period{1318,1155}
1977/10/03 Do Not Use Plastic Tubing With Brass Couplings As A Fuel Supply Line{1274}
1977/10/03 Washer Removed From Variable Timing Unit{1206,1272}
1977/10/03 Turbocharger Heat Shields Are Stronger{1073}
1977/10/03 Change Is Made to Support Beam For Front Of Engine{0643}
1977/09/26 New Special Instruction Gives General Information On The Use Of The 5P6590 Wiring Harness Tester For Electrical System Testing{0650,1400}
1977/09/26 Stronger Fan Drive Pulley Prevents Cracks During Assembly; Torque On Pulley Bolts Changed{1359}
1977/10/17 Fabricated Extension Prevents Fuel "Splash" During Injection Valve Testing{0650,1254}
1977/10/17 Preparation Of Truck Engines For Cold Weather Operation{1300,1000}
1977/10/17 Improved Main, Thrust And Connecting Rod Bearings Have Aluminum Alloy With More Strength{1230}
1977/10/17 Separate Parts Of Oil Pump Cover Now Available{1304,1314}
1977/10/17 Vent Tube Added To Jacket Water Aftercooler{1063}
1977/10/24 Assembly Procedure For The 5P4721 Tube (Part Of The 5P4149 Conversion Group And 5P4150 Nozzle Testing Group){0650}
1977/10/24 Adjust Shop Tire Pressures For Operation In Cold Temperatures{4203,4204}
1977/10/24 New Piston Group Has Improved Iron Band In The Piston Body{1214}
1977/10/24 Replacement Bearings Have Aluminum Alloy With More Strength{1203,1213,1230}
1977/10/31 New Hydraulic Flow Meter Has Many Improvements To Make It Easier, Faster And Safer To Use Than The Former Flow Meter{0651,5050}
1977/10/31 New Governor Spring Changes Speed Regulation{1264,1286}
1977/10/31 With New 5P7448 Adapter, Earlier Fuel Injection Valves And Nozzles Can Be Tested And Adjusted On The 5P4150 Nozzle Testing Group{0651,1254}