Mazda MX-5 1990 Workshop Manual page 80

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INSPECTION I REPAIR
B
05UOBX-140
05UOBX-141
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05U08X-142
05U08X-144
5. Measure the jOl1rnal diameters in X and Y directions at the
two points (A and B) shown.
Diameter:
25.940-25.965mm (1.0213-1.0222 in)
Out-of-round: 0.05mm (0.002 in) max.
6. Measure the camshaft journal oil clearances.
Caution
• Do not install the HLA when measuring the oil
clearance.
(1) Remove all foreign material and oil from the journals and
bearing surface.
(2) Set the camshaft onto the cylinder head.
(3) Position Plastigage atop the journals in the axial
direction.
(4) Install the camshaft caps according to the cap number
and arrow mark.
(5) Install the camshaft cap bolts and tighten them in two
or three steps in the order shown in the figure.
Tightening torque:
11.3-14.2 N·m (1.15-1.45 m-kg, 100-126 in-Ib)
(6) Loosen the camshaft cap bolts in two or three steps in
the order shown in the figure.
(7) Remove the camshaft caps.
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