1.Set the No.1 and No.5 journals of the camshaft on V-blocks.
2.Measure the camshaft runout using the dial gauge.
• If it is not within the specification, replace the camshaft.
B3E0110E074
Maximum camshaft runout
0.03 mm {0.0012 in}
3.Measure the cam height using the micrometer as shown in the figure.
• If it is less than the minimum specification, replace the camshaft.
B3E0110E0762
Cam height
Standard
IN: 42.44 mm {1.671 in}
EX: 41.18 mm {1.622 in}
Minimum
IN: 42.34 mm {1.667 in}
EX: 41.08 mm {1.618 in}
4.Measure the journal diameter using the micrometer. Measurement positions total four and are in the X and Y directions, at two points (A and B) as shown in the figure.
• If it is less than the minimum specification, replace the camshaft.
B3E0110E0753
Camshaft journal diameter
Standard
24.96-24.98 mm {0.9827-0.9834 in}
Minimum
24.95 mm {0.982 in}
5.Measure the camshaft journal oil clearance using the plastigauge with the tappet removed.
• If it exceeds the maximum specification, replace the cylinder head.
Note
• Clean the camshaft journal and the journal receptacle part.
• Cut the plastigauge to the same length as the journal width and position it parallel to the camshaft.
B3E0110E0774
Camshaft journal oil clearance
Standard
0.04-0.08 mm {0.002-0.003 in}
Maximum
0.09 mm {0.0035 in}
6.Measure the camshaft end play using a dial gauge.
• If it exceeds the maximum specification, replace the cylinder head or camshaft.
