1987/11/01 Caterpillar


Additional Parts Required For Installation Of C-336 ® Jacobs Engine Brake

Usage:


Early 3306 and 3306B Truck Engines

As announced earlier by Caterpillar's Engine Division, the C-336 Jacobs Engine Brake is available for direct installation on 3306 Truck Engines 76R6115-Up, and 3306B Truck Engines 63Z3300-Up. It is permissible to use this exhaust brake on earlier engines of either model if the following new parts are also installed.

1-7C3863 Camshaft
1-7C7011 Rocker Arm Bracket (No. 6 cylinder)
12-7S3161 Lifter

The new camshaft has harder lobes than either of the former camshafts so it can withstand the higher loads on the push rods. All new lifters will give longer life under the higher loads than used lifters. The new rocker arm bracket has a 12.7 mm (.50 ") threaded hole to supply pressure oil to the brake, which is why it is at the No. 6 position.

Caterpillar Information System:

1987/11/01 Orifice Reverse Flow Check Valve Used In Fuel Injection Pumps
1987/11/01 Results Of High Speed And/Or Overspeeding Of 3406B Truck Engines
1987/11/01 New Water Temperature Regulator Helps Prevent Overcooling
1987/11/01 Ring Retainer And New O-Ring Seal Used In The Brakesaver Engine Oil Lines Group
1987/11/01 Improved Mounting Hardware For Electronic Control Group
1987/11/01 New 8C9705 12 Volt Converter Available To Power The 8T8697 Electronic Control Analyzer Programmer ECAP)
1987/11/01 New Air Powered Scraper Available For Gasket Removal
1987/11/01 New Service Tools Available
1987/10/01 Caterpillar Announces Ambassador Club For Dealer Personnel In The U.S.
1987/10/01 Check Plastic Water Sleeve If Engine Experience Severe Overheating
1987/10/01 Either Type Sleeve Satisfactory For Governor Servo Piston
1987/10/01 New Special Instruction, "using The PEEC Screen Map(s) "
1987/11/01 Intake Valve Seals Used
1987/12/01 Engine Oil Refill Capacity Reduced
1987/12/01 Oil Pan Size Identification
1987/12/01 Improved Valve Mechanism Cover Groups
1987/12/01 New 1U5803 Connector Repair Kit Available
1987/12/01 Earlier Flywheel Housings Can Be Modified For Use With Later Crankshafts
1987/12/01 Adjust Bosch Solenoid If Replaced Or Reinstalled
1987/12/01 List of Service Publications
1988/01/01 New Suction Bell Assemblies, Bolts, And Washers Used In Sump Oil Lines Groups
1988/01/01 Die Cast Flywheel Housing Has Less Weight
1988/01/01 8T5314 Socket Adapter Available To Correctly Install Alternator Pulley Nut
1988/01/01 New Engine Oil Coolers Have Rubber End Sheets
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