1981/08/10 Caterpillar


New Spacers Used With Larger Valve Springs{1108,1101}

Usage:


All Naturally Aspirated 3208 Engines

Reference: "Larger Valve Springs," Service Magazine, May 4, 1981, Page 1.

Description of Change: In the reference article, a new 9N5565 Spacer was shown. This 9N5565 Spacer has now been canceled. It was found that there were 9N5565 Spacers in the parts system with two different outside diameters. Some had an outside diameter of 40.0 mm (1.57"). Others had an outside diameter of 39.0 mm (1.53"). To make sure the spacer with the correct diameter is used, a new spacer with a 39.0 mm (1.53") diameter is now available.

Adaptable As: The new 1W9897 Spacer is a direct replacement for the former 9N5565 Spacer, which is canceled. The 9N5565 Spacers in the dealers parts system can still be used, but the outside diameter must be measured first. Spacers that are 40.0 mm (1.57") diameter must not be used with the 9N2362 Cylinder Head. This spacer will not fit flat on these cylinder heads and will cause a wrong preload to be put on the valve springs when assembly is made. The new 1W9897 Spacer or a 9N5565 Spacer with a 39.0 mm (1.53") diameter can be used on the 9N2362 Cylinder Head.

9N5565 Spacers with a diameter of 40.0 mm (1.57") can be used on all other cylinder heads.


NOTICE

All the new parts must be used when a replacement is made of the former parts. Also, all the former retainers, valve springs, fuel nozzle clamp assemblies, washers and spacers on a cylinder head must be changed at the same time.


Caterpillar Information System:

1981/08/10 Different O-Ring Seals Used In Exhaust Gas Recirculation Actuator Group{1080}
1981/08/10 Explanation Of Differences In Timing Advance Information{0374,1250}
1981/08/10 Use Correct Parts In Oil Pressure Relief Valve{1315,1304}
1981/08/10 New Water Temperature Regulator Improves Temperature Control{1355,1354}
1981/08/10 Certification Film Necessary On Engines Adjusted For High Altitude Operation{7557,1251,1257,1264}
1981/08/10 Voltage Converter Assembly Now Available{1400,1410,1561}
1981/08/03 FT1633 And FT1634 Return Cap Assemblies Permit Easier Installation Of Flow Meter Tools{0651,5050}
1981/08/03 New Information System For Engine Gasket Kits{7555}
1981/08/03 Delay Expected In Replacement Of Canceled Service Tools{0651}
1981/08/03 Indications Of High Oil Temperatures In BrakeSaver Circuit Can Be Caused By Wrong Gauge Connection{1155,1159,7450}
1981/07/13 Washer, Seal Added To Improve Oil Filter Assembly{1306,1318}
1981/07/13 Remove Piston Cooling Tubes Before Removal Of Pistons And Connecting Rods{1214,1218,1201,1225,1307}
1981/08/17 Standard Interval For Oil Changes Now 20,125 Kilometers (12,500 Miles) Or 250 Service Hours{1318}
1981/08/17 New Spanner Wrenches Needed To Install Bearings On Marine Transmission Shafts{0622,3300}
1981/08/17 Improvements To Optional Modification Of 5P4150 Nozzle Tester{0651,1254}
1981/08/17 Plastic Plugs Now Used To Hold Piston Pins In Bendix Air Compressors{1065}
1981/08/17 O-Ring Seal Materials And Applications: Use Only The Correct Seal For The Specific Installation{7555}
1981/08/17 Comparison And Applications Of Six And Eight Counterweight Crankshafts{1202,1156}
1981/08/24 New Idler Pulley Groups Improve Service Life Of Vee-Belt{1358}
1981/08/24 Troubleshooting The Fuel Ratio Control Group For Low Power Complaints{1278}
1981/08/24 Use Of Different Anti-Seize Compound Prevents Problems With S.O.S. Tests{0680,1203,1218,1219,1225,1226,1227,1230}
1981/08/31 FT1632 Bolt Used During Removal Of Sleeve From Sleeve Metering Fuel System{0621,1251,1253}
1981/08/31 6V3100 Diesel Timing Indicator Group Available To Check Engine/Fuel System Timing And Mechanical Advance During Operation{0653,1206,1156}
1981/08/31 Thrust Washer Used In Pump Housing For Sleeve Metering Fuel System{1253,1286}
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