Do Not Use Later 9N3979 Nozzle Assemblies In Plate Of Earlier Nozzle Assemblies{1254}
Usage:
3208 Industrial, Marine, Truck And Vehicular Engines
Some engine problems have been caused by installation of wrong fuel injection nozzle assemblies. Later 9N3979 Nozzle Assemblies must not be installed in place of any earlier nozzle assemblies. The 9N3979 Nozzle Assemblies have a different design with different injection characteristics, and are specifically for use with the later 3208 Engines, as shown in the chart. Installation of these nozzles in earlier 3208 Engines can cause a reduction in engine performance, increase emissions in some conditions, and possibly cause exhaust smoke. For this reason, it is very important to use only the correct nozzle assembly when replacement becomes necessary.
Caterpillar Information System:
1979/05/21 New Flywheel Housing Corrects Clearance Problem With Cylinder Block{1157,1158,1201,1453}
1979/05/21 Shorter Mounting Bolts Used For Glow Plug Wiring{1403,1412}
1979/05/14 Two Fuel Pressure Pumps Are Available To Increase Fuel Pressure{1250,1295}
1979/05/14 New Filler Bands Give A Better Seal Between The Cylinder Liners And Cylinder Block{1201,1216}
1979/05/14 5P3519 Piston Ring Gauge Has Improved Design For Better Accuracy And Easier Use; Corrected Information For Use On Pistons That Have Two Ring Grooves{0653,1214}
1979/05/14 How To Adapt The 5P1759 Tachometer Drive Group (Dealer Tool) To D9H Tractors, 594H Pipelayers And D353 Engines Equipped With Electric Hour Meters When Engine RPM Must Be Checked{0654}
1979/05/14 New BrakeSaver Manifold Prevents Oil Leakage{1155}
1979/05/07 Serialized Attachments Added To Machine Parts Books{0375}
1979/05/07 New Oil Pump Has Improved Relief Valve For Better Pressure Control{1304}
1979/05/07 An Ammeter Calibration Group Is Now Available{0651}
1979/05/07 Change In Part Number Of Water Temperature Regulator Used In Attachment Oil Cooler Groups{1355,1378}
1979/05/07 Part Numbers Of Bearings To Use For Service Replacement In Fuel Injection Pump Housings For Sleeve Metering Fuel Systems; Correction To Special Instruction For Installation.{1253}
1979/05/21 How To Prevent Cylinder Block Failure From Cracks{1201}
1979/05/21 New Washers For Injection Valve Nozzles Must Be Added To Valve Grinding Gasket Kit When Used With Later Engines{7555,1254}
1979/05/21 Rod Bearings For Parts Service Have Reliefs (Grooves) Cut On The Outside Diameter{1219}
1979/05/28 9S8100 Tool Group Changed To Use With Fuel Transfer Pump Only{0622}
1979/05/28 A New Method To Clean And Polish Engine Valve Stems{0674,1105}
1979/05/28 Seat Belt Maintenance{7327}
1979/05/28 New Type Products Available To Clean Cooling Systems{1350}
1979/05/28 Correct Locations To Connect Gauges For Checks Of Engine Oil Temperature And/Or Pressure{7455,7450,1300}
1979/06/04 New "L-Shaped" Clutch Plates Now Used{3302}
1979/06/04 New Caterpillar Yellow Paint{0670}
1979/06/04 Check Crankshaft Seals During Installation Of Engine Overhaul Gasket Kits; Add A Wear Sleeve When Needed{7555,7558,1161}
1979/06/04 New Centering Rings For Oversized Main Bearings{0665,1230}