Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage And Damage To Manifold Gaskets And Mounting Studs{1059,1061}
Usage:
988B Loaders And 3408 Industrial D.I.T. Engines
Description of Change: A new exhaust manifold group and air lines group are used on 988B Loaders and 3408 Industrial D.I.T. Engines. The new groups use manifolds and stainless steel tubes with slip-joints instead of the former flanges with gaskets. The design changes made to these groups will prevent exhaust gas leakage at manifold-to-air line connections. Also, the changes will prevent broken manifold mounting studs and give longer service life for the manifold gaskets.
Adaptable As: Direct replacement when the new parts are used together.
Caterpillar Information System:
1980/12/01 Direct Inquiry Service Information Retrieval System (SIRS) Available To U.S. And Canadian Dealers{0374}
1980/11/24 Replacement Wheel Available For Service Of 6V97 Engine Stand Group{0626}
1980/11/24 New Aftercooler Core Has Copper-Nickel Tubes For Increased Strength{1063,1064}
1980/11/17 Some Remanufactured 3406 Engines Have The Wrong Reference Serial Number On The Identification Plate{7557,1000}
1980/11/17 Use Dust Cap To Prevent Freon Leakage From Air Conditioner; Cap Is Available As Replacement Part{7320}
1980/11/17 New Exhaust Manifold Group And Air Lines Group Used To Prevent Exhaust Leakage{1059,1061}
1980/11/17 6V4021 Piston Ring Compressor Group Available{1215,1214,0622}
1980/11/17 Two Thinner Spacers Available For Use During Adjustment Of Off-Engine Timing Dimension{1251,0653}
1980/11/17 Coolant Conditioner Elements Are Now Available For 3208 Engines{1350}
1980/11/17 Check For Correct Spring Retainer On Oil Pump Bypass Valve When Oil Pan Is Removed{1315,1302}
1980/11/10 Wrong Installation Of Washers Between Bearing Cone And Bearing Retainer Nut Can Cause Directional Clutch Damage{3155,3159,3176}
1980/11/10 Different Caps And Adapters For Ball Studs On Circle Drawbars Can Be Used Without Plastic Inserts{6170,6171}
1980/12/01 Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}
1980/12/01 New Service Handle Kit Permits Cab Door To Be Opened From Inside While Locked (Fastened With Lock){7308,7301}
1980/12/01 Check Alignment Of Engine Flywheel And Torque Converter Input Shaft After Flexible Coupling Failures; Also Check Low Idle RPM{3252,1156,3101}
1980/12/01 Warning: Use Correct Seal On Seat Assembly For Valve Group In Steering Valve Group{4307,4312,4322}
1980/12/01 New Front Housing Assembly And Gaskets Used{1162,1166,1151}
1980/12/01 Different Water Temperature Regulators Used In Water Lines Groups{1355}
1980/12/01 Different O-Ring Seal Now Used On The Oil Pump Suction Tube{1307,1304}
1980/12/01 Inspect All Engine Oil And Fuel Filter Elements Before Installation{1000,1261,1318}
1980/12/01 6V4085 Torque Multiplier Group Available{0614}
1980/12/01 Oversize Brake Lining Kit Now Available For Front Wheel Brakes{4254}
1980/12/15 New Bearing Sizes And Identification Codes For AiResearch Remanufactured Turbocharger Cartridges{1053}
1980/12/15 Be Sure To Cut The Center Gasket Even With Top Surface Of Oil Pan Sections To Prevent Oil Leakage{1302}