TM 5-3805-280-24-2
Camshaft, Balancer Shafts and Timing Gear Train
MEASURE TIMING GEAR BACKLASH
16
22
NOTE: All gears have helical cut teeth.
Measure timing gear backlash. Compare against the
following specifications.
Camshaft-to-Upper Idler (A)--Specification
Backlash ....................................................................... 0.077--0.7466 mm
(0.0030--0.0291 in.)
Injection Pump-to-Upper Idler (B)--Specification
6-Cylinder Engine
Backlash ....................................................................... 0.077--0.7466 mm
(0.0030--0.0291 in.)
Upper Idler-to-Crankshaft (C)--Specification
Backlash ....................................................................... 0.065--0.5799 mm
(0.0025--0.0226 in.)
Crankshaft-to-Lower Idler (D)--Specification
Backlash ....................................................................... 0.067--0.6062 mm
(0.0026--0.0236 in.)
Oil Pump-to-Lower Idler (E)1--Specification
4-Cylinder Engine
Backlash ....................................................................... 0.081--0.6037 mm
(0.0032--0.0235 in.)
A--Camshaft Gear-to-Upper Idler Gear
B--Injection Pump Gear-to-Upper Idler Gear
C--Upper Idler Gear-to-Crankshaft Gear
D--Crankshaft Gear-to-Lower Idler Gear
Backlash ........................................................................ 0.065--0.6521mm
E--Oil Pump Gear-to-Lower Idler Gear
(0.0025--0.0254 in.)
F--Balancer Shaft Gear-to-Oil Pump Gear
G--Lower Idler Gear-to-Balancer Shaft Gear
Lower Idler-to-Balancer Shaft (4-Cyl Only) (G)--Specification
Backlash ....................................................................... 0.071--0.6476 mm
(0.0028--0.0253 in.)
Camshaft-to-Auxiliary Drive (Not Shown)--Specification
Backlash ....................................................................... 0.053--0.6818 mm
(0.0021--0.0266 in.)
1
4-cylinder engine only
RG,16,DT7500 1914NOV971/1
13-254
