D399, G399, D398, G398, D379, G379 ENGINES Caterpillar


Magneto Drive

Usage:

Magneto drive rotation (clockwise as seen from rear of engine)

(1) Diameter of drive shaft ... 1.0005-1.0015 in.(25,417-25,443 mm)

Bearing bore ... 1.003-1.005 in.(25,50-25,53 mm)

(2) Diameter of drive shaft front journal ... .6232-.6238 in.(15,829-15,845 mm)

Bearing bore ... .6255-.6275 in.(15,888-15,939 mm)

(3) Torque for drive gear retaining bolt (apply 7M7456 Loctite Sealant to threads) ... 18 ± 2 lb. ft.(2,5 ± 0,3 mkg)

Position of magneto to drive tang:

(A) G399 Engine (both magnetos):

Angle from horizontal ... 30°

(B) G398 and G379 Engines (solid state magnetos):

Angle from vertical* ... 30°


*3N863 and 3N525 Magnetos for G398 Engines need 45°

(C) G398 and G379 Engines (point gap magnetos):

Angle from vertical ... 0°

Caterpillar Information System:

D399, G399, D398, G398, D379, G379 ENGINES Ignition System
D399, G399, D398, G398, D379, G379 ENGINES Starter Solenoids
D399, G399, D398, G398, D379, G379 ENGINES Starting Motors
D399, G399, D398, G398, D379, G379 ENGINES Oil Pressure Switches
D399, G399, D398, G398, D379, G379 ENGINES Alternator Regulators
D399, G399, D398, G398, D379, G379 ENGINES Generator Regulator 5L4599 (12V-35A-Delco-Remy Number 1119168)
D399, G399, D398, G398, D379, G379 ENGINES Magnetic Switch 9F3099 (24V-Delco-Remy Number 0001481)
D399, G399, D398, G398, D379, G379 ENGINES Generators 5L5750 (12V-35A-Delco-Remy Number 1105148)
D399, G399, D398, G398, D379, G379 ENGINES Alternators 5L1243 (32V-Delco-Remy Number 1117074)
D399, G399, D398, G398, D379, G379 ENGINES Turbocharger Lubrication Valve
D399, G399, D398, G398, D379, G379 ENGINES Turbocharger (Schwitzer) (4HD857, 4MD455, 4ME435, 4HD755 And 4HF845)
D399, G399, D398, G398, D379, G379 ENGINES Front Accessory Drive
D399, G399, D398, G398, D379, G379 ENGINES Differential Pressure Regulator (7S7810)
D399, G399, D398, G398, D379, G379 ENGINES Fuel Transfer Pump; (6L9697 And 1N5415)
D399, G399, D398, G398, D379, G379 ENGINES Fuel Pump And Governor Drive
D399, G399, D398, G398, D379, G379 ENGINES Governor Control Linkage (Hydra-Mechanical)
D399, G399, D398, G398, D379, G379 ENGINES Engine Mounted Fan
D399, G399, D398, G398, D379, G379 ENGINES Cooling System Pressure Cap
D399, G399, D398, G398, D379, G379 ENGINES Fresh And Auxiliary Water Pumps; (4L8800, 6L8983, 6L4754, 2N955 And 7L3222)
D399, G399, D398, G398, D379, G379 ENGINES Temperature Regulator
D399, G399, D398, G398, D379, G379 ENGINES Manifold
D399, G399, D398, G398, D379, G379 ENGINES Vibration Damper
D399, G399, D398, G398, D379, G379 ENGINES Prelube Oil Pump And Motor; (Early Type)
D399, G399, D398, G398, D379, G379 ENGINES Prelube Pump Motor; (Later Type)
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