Replacement Valve Guides Can Be Used To Recondition Cylinder Heads{1104}
Usage:
All 1100, 3100 and 3200 Series Engines
Description of Change: Two new valve guides (one intake and one exhaust) can now be used to recondition cylinder heads on the above engines. These valve guides can be installed as a replacement for original valve guides which have worn beyond their maximum tolerances. Formerly, the only way to recondition worn valve guides was to knurl the inside diameter.
Special Instruction, Form SMHS8277, has complete information on the installation of the new valve guides.
Adaptable To: The new 4W3778 (Intake) and 4W3779 (Exhaust) Valve Guides are adaptable to all the above engines.
Caterpillar Information System:
1983/12/19 Smaller Dowel, Stronger Cover Used On Oil Pump Drive Shaft{3310}
1983/12/12 Modification Of Control Panel Gives Different Power Source For Overcrank Timer To Prevent Starter Motor Failures{7450}
1983/12/12 Cooling System Conditioner Helps Prevent Cavitation Damage{1350}
1983/12/12 Dry Exhaust Elbow and Improved Turbocharger Exhaust Seal Help Prevent Exhaust Gas Leakage{1052,1061}
1983/12/12 New Spring And Shaft Used In Governor Control Lever Have Increased Corrosion Resistance{1265}
1983/12/05 Inspect Camshaft And Lifters After A Failure In The Valve Mechanism Area{1209,1208,1210}
1983/12/05 6V4163 Bit And 6V4164 Driver Now Available For Removal Of Bolts For Flyweight Carrier{0612,1264}
1983/12/05 Mixture Of Inch And Metric Fasteners To Be Used{0683}
1983/12/05 Several Temperature Detectors Available For 6V6996 And 6V7118 Induction Bearing Heaters{0627}
1983/11/21 Crankshaft Positions For Injector Timing And Valve Clearance Settings{0374,1104,1290}
1983/11/21 Service Information For Balancers And Dampers{1205}
1983/11/21 Recommendations For Use Of Different Types Of Friction Discs In A Transmission{3155}
1983/12/19 New Monitor Groups Will Keep Water Out Of EMS Panel{7490}
1983/12/19 FT1808 Cable Permits Easier Use Of 6V2100 Multitach To Check Engine Or Alternator RPM{0651}
1984/01/09 Reference Chart For Usage Of New Electronic Components{7400,0374}
1984/01/09 Water Pump Housing Is Now Available For Parts Service{1373}
1984/01/09 Stronger Water Cooled Exhaust Manifold Used{1059}
1984/01/09 Usage Of Pistons With Rectangular Rings{1214,1215}
1984/01/09 High Levels Of Soot In The Oil; Make Sure Air Fuel Ratio Control Operates Correctly{1278}
1984/01/09 Parts Service Information For Pistons{1214,1225}
1984/01/09 Drive Block Retainer Plates Are No Longer Used{3305}
1984/01/16 New Cover And Lever Will Prevent Overtravel Of Valve Spool {3313}
1984/01/23 New Plastic Impeller Will Help Improve Service Life Of Water Pump Seal{1361}
1984/01/23 Housing Assembly Now Has Sleeve To Prevent Housing Damage{3306}