Rocker Arm And Rocker Arm Shaft Check - Mazda 626 MX-6 Workshop Manual

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INSPECTION AND REPAIR
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5. Measure the oil clearance of the camshaft and
camshaft caps.
(1) Remove any oil, or dirt from the journals and
bearing surface.
(2) Set the camshaft onto the cylinder head.
(3) Position plasti-gauge on top of the journals in
the axial direction.
(4) Place the camshaft caps and rocker arm shafts
in position, and tighten them to the specified
torque.
Tightening torque:
18—26 Nm (1.8—2.7 m-kg, 13—20 ft-lb)
(5) Remove the camshaft caps and measure the
oil clearance at each cap.
Oil clearance
Front and rear:
0.035—0.085 mm (0.0014—0.0033 in)
Center three journals:
0.065—0.115 mm (0.0026—0.0045 in)
Maximum: 0.15 mm (0.0059 in)
(6) If the oil clearance exceeds the maximum, re­
place the cylinder head.
86U01X-096
6. Measure the camshaft end play. If it exceeds the
maximum, replace the camshaft and/or the cylin­
der head.
End play:
0.08—0.16 mm (0.003—0.006 in)
Maximum: 0.20 mm (0.008 in)
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Rocker Arm and Rocker Arm Shaft
1. Check for wear or damage to the contact surface
of the rocker arm shaft and the rocker arm. Re­
place if necessary.
2. Check the oil clearance between the rocker arm
and shaft. Replace if necessary.
(1) Measure the rocker arm inner diameter.
Diameter:
19.000—19.033 mm (0.7480—0.7493 in)
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