1977/05/13 Caterpillar

New Fuel Nozzle Assembly Available

Usage:

All 1100 and 3100 Series Engines

Description of Change: A new fuel nozzle is available for the above engines. This new nozzle has a screw-type pressure adjustment. The nozzle used formerly had shim-type pressure adjustment. The change was made to give pressure adjustments similar to those of the fuel nozzles in 3208 engines.

Adaptable As: The 9N2366 Fuel Injection Nozzle Assembly is a direct replacement for the 9L7883 Nozzle Assembly, which is canceled. The new nozzle assembly has pressure and lift screws similar to those in the 9L6969 Nozzle Assembly used on 3208 Engines.

NOTE: The test specifications for the new nozzle are the same as for the former nozzle. Check the 3208 Service Manuals, "Testing 9L6969 Fuel Nozzles", to adjust the pressure with the new screw-type adjustment.

Caterpillar Information System:

1977/05/13 Gasket For Water Temperature Regulator Now Has Larger Vent Passage

1977/05/13 Improved Keystone Piston Assembly

1977/05/13 Improved Air Cleaner Group

1977/05/13 Guide Assembly For Dipstick (Oil Level Gauge) Now Has Thicker Walls

1977/05/13 New Crankshaft Front Seal And Wear Sleeve Permit Crankshafts With Seal Wear To Be Used Again

1977/05/13 New Information On Caterpillar Cooling System Inhibitor

1977/05/13 New 5P4185 Fuel Pump Timing Pin To Be Used Only On 3408 And 3412 Engines

1977/05/03 New Socket Assembly To Tighten The Bolts That Fasten The Sleeve Levers To The Sleeve Shaft

1977/05/03 Improved Cylinder Block With Spacer Plate Used With New Cylinder Heads, Cylinder Head Gaskets, Cylinder Liners And Timing Gear Housing

1977/05/03 Special Tools For Complete Repair Of Water Pump In Direct Injection Engines

1977/04/22 List Of Service Publications

1977/04/22 Stronger Material Used In Undersize Connecting Rod Bearings

1977/05/25 New Rotor Assembly For Engine Oil Pump Has A Drilled Passage For Better Lubrication Of Oil Pump Bearing

1977/05/25 Shorter Bolts Now Used In Exhaust Manifold Support

1977/05/25 Flare Nut Wrenches Available

1977/05/25 Self Locking Bolts Or Hardened Washers Used In Place Of Sheet Metal Locks

1977/05/25 Orifice In Oil Supply Passages Of BrakeSaver Stator Prevent Seal Leakage

1977/05/25 Correct Installation Of Valve Lifters On The Camshaft Is Very Important To Prevent Failures

1977/05/25 Parts In 1P3075 Seal Puller Group Available Separately

1977/06/08 Improvements To Fuel Injection Pump And Governor

1977/06/22 Water Pump Has Stronger Pulley

1977/06/22 New Adapter Group For Use With Fuel Injection Test Bench

1977/06/22 List Of Service Publications

1977/06/22 Fabricated Tools For Assembly And Disassembly Of 7271 Marine Transmission