1980/12/01 Caterpillar

New Front Housing Assembly And Gaskets Used{1162,1166,1151}

Usage:

All 3304 And 3306 Engines

Description of Change: A new front housing assembly, front housing gasket and front plate gasket are used in the front housing groups for all 3304 and 3306 Engines.

The new front housing assembly has a different bolt arrangement than the former housing assembly. Because of the different bolt arrangement, a new front housing gasket and a new front plate gasket are necessary.

Adaptable As: The new parts, used together, are direct replacements for the former parts as shown in the chart for all earlier 3304 and 3306, D330 and D333 Engines.

The new gaskets can be used with the former housing assembly in earlier 3304 and 3306, and D330 and D333 Engines. But, the former gaskets must not be used with the new housing assembly because there will be oil leakage. The former gaskets can still be used on engines which have the former housing assembly.

The new 8N109 Front Housing Assembly. The arrows (marks) show the locations of the bolt arrangement changes.

The former 6N8056 Front Housing Assembly.

Caterpillar Information System:

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 Larger Plug Used In The Ends Of The Rocker Arm Shaft Assembly{1102}

1980/12/01 Exhaust Manifold And Air Lines Groups Changed To Prevent Exhaust Leakage And Damage To Manifold Gaskets And Mounting Studs{1059,1061}

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 6V4008 Valve Seat Extractor Now Available{1103,0622}

1980/11/24 New Gasket Improves Operation Of Shut-Off Groups{7418,7403}

1980/11/24 Use Fluid-Type Vibration Damper To Control Vibrations{1205,3305}

1980/11/24 New Aftercooler Core Has Copper-Nickel Tubes For Increased Strength{1063,1064}

1980/11/24 New Decals Permit Easier Identification Of Fuel System Settings On Most Truck Engines{7557}

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}

1980/12/01 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}

1980/12/15 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}

1980/12/15 New Control Valve Group Used To Prevent Ratchet-Type Noise And Rough Clutch Engagement{3313}

1980/12/15 New Turbocharger, Turbocharger Oil Lines Group And Aftercooler Air Lines Group Used{1052,1058,1063,1307,1309}

1980/12/15 Replacement Timing Belts And Variable Belt For Fuel Injection Test Benches Available From Caterpillar{0652,1250}

1980/12/22 6V4019 Camshaft Pilot Group Is Available{0622,1210,1211,1201}

1980/12/22 Tires Are Filled With Nitrogen (N2){4203}

1980/12/22 Exhaust Elbow Support Improved{1059,1061}

1980/12/22 New Oil Pan Gasket Has Silicone Bead For Better Seal{1302}