CYLINDER HEAD

EM-40spec table

Cam height specs differ by engine: GA14DS with catalyzer without E.G.R. (except for GA16DE), GA14DS with catalyzer and E.G.R., and GA16DE.

Continued from EM-39

Inspection (Cont'd)

CAMSHAFT VISUAL CHECK

Check camshaft for scratches, seizure and wear.

CAMSHAFT RUNOUT

1
Measure camshaft runout at the center journal. Runout (Total indicator reading): Standard: Less than 0.02 mm (0.0008 in); Limit: 0.1 mm (0.004 in).
SEM154D
2
If it exceeds the limit, replace camshaft.

Specification	Value
Camshaft runout (Total indicator reading) - Standard0.0008 in	Less than 0.02mm
Camshaft runout (Total indicator reading) - Limit0.004 in	0.1mm

Camshaft runout (Total indicator reading) - Standard0.0008 in

Less than 0.02mm

Camshaft runout (Total indicator reading) - Limit0.004 in

0.1mm

CAMSHAFT CAM HEIGHT

1. Measure camshaft cam height.

Camshaft cam height (Unit: mm (in))

Measurement	Cam lobe	GA14DS with catalyzer without E.G.R., except for GA16DE	GA14DS with catalyzer and E.G.R.	GA16DE
Standard cam height	Intake	39.880 - 40.070 (1.5701 - 1.5776)	39.380 - 39.570 (1.5504 - 1.5579)	40.600 - 40.790 (1.5984 - 1.6059)
Standard cam height	Exhaust	39.880 - 40.070 (1.5701 - 1.5776)	39.380 - 39.570 (1.5504 - 1.5579)	39.880 - 40.070 (1.5701 - 1.5776)
Cam wear limit		0.2 (0.008)	0.2 (0.008)	0.2 (0.008)

Standard cam height

Cam lobeIntake

GA14DS with catalyzer without E.G.R., except for GA16DE39.880 - 40.070 (1.5701 - 1.5776)

GA14DS with catalyzer and E.G.R.39.380 - 39.570 (1.5504 - 1.5579)

GA16DE40.600 - 40.790 (1.5984 - 1.6059)

Standard cam height

Cam lobeExhaust

GA14DS with catalyzer without E.G.R., except for GA16DE39.880 - 40.070 (1.5701 - 1.5776)

GA14DS with catalyzer and E.G.R.39.380 - 39.570 (1.5504 - 1.5579)

GA16DE39.880 - 40.070 (1.5701 - 1.5776)

Cam wear limit

Cam lobe

GA14DS with catalyzer without E.G.R., except for GA16DE0.2 (0.008)

GA14DS with catalyzer and E.G.R.0.2 (0.008)

GA16DE0.2 (0.008)

2. If wear is beyond the limit, replace camshaft.

CAMSHAFT JOURNAL CLEARANCE

1
Install camshaft bracket and tighten bolts to the specified torque.
2
Measure inner diameter of camshaft bearing. Standard inner diameter: No. 1 bearing 28.000 - 28.021 mm (1.1024 - 1.1032 in); No. 2 to No. 5 bearings 24.000 - 24.021 mm (0.9449 - 0.9457 in).
SEM155D

Specification	Value
Camshaft bearing inner diameter - No. 1 bearing1.1024 - 1.1032 in	28.000 - 28.021mm
Camshaft bearing inner diameter - No. 2 to No. 5 bearings0.9449 - 0.9457 in	24.000 - 24.021mm

Camshaft bearing inner diameter - No. 1 bearing1.1024 - 1.1032 in

28.000 - 28.021mm

Camshaft bearing inner diameter - No. 2 to No. 5 bearings0.9449 - 0.9457 in

24.000 - 24.021mm

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