C1.5 and C2.2 Engines for Caterpillar Built Machines Caterpillar


Gear Group (Front)

Usage:

CB-22B 2B2

Table 1
Injection timing 
Engine  Maximum rated engine speed  Injection timing (BTDC)(1) 
C1.5 (Turbocharged)  2400  16° ± 1° 
C1.5 (Turbocharged)  2800  16° ± 1° 
C1.5 (Turbocharged)  3000  16° ± 1° 
C2.2 (Naturally Aspirated)  1800  14.5° ± 1° 
C2.2 (Naturally Aspirated)  2400  18° ± 1° 
C2.2 (Naturally Aspirated)  2600  17° ± 1° 
C2.2 (Naturally Aspirated)  2800  17° ± 1° 
C2.2 (Naturally Aspirated)  3000  18° ± 1° 
C2.2 (Turbocharged)  1800  15° ± 1° 
C2.2 (Turbocharged)  2600  18° ± 1° 
C2.2 (Turbocharged)  2800  19° ± 1° 
C2.2 (Turbocharged)  3000  20° ± 1° 
(1) Before Top Dead Center


Illustration 1g01335525
Typical example

(1) Feeler gauge

(2) Timing mark on the crankshaft gear

(3) Timing mark on the camshaft gear

(4) Timing mark on the idler gear

Minimum backlash for all gears ... 0.08 mm (0.003 inch)

Maximum backlash for all gears ... 0.25 mm (0.010 inch)

Note: If the backlash is greater than the maximum backlash, replace the camshaft gear, the idler gear, and the crankshaft gear.

When the idler gear is installed on the shaft of the oil pump, align a timing mark on idler gear (4) with the timing mark on crankshaft gear (2). Also, align the other timing mark on idler gear (4) with the timing mark on camshaft gear (3).

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