Cylinder Head Inspection - Mazda MX-5 Miata Sport 2007 Manual

2006-08 ENGINE Mechanical - Overhaul - 2.0L (LF) & 2.3L (L3) - Mazda6 & MX-5 Miata
INSPECTION).
2. Loosen the main bearing cap bolts in two or three steps in the order shown in the figure.
Fig. 20: Loosening Main Bearing Cap Bolts
Courtesy of MAZDA MOTORS CORP.

CYLINDER HEAD INSPECTION

1. Perform color contrast penetrate examination on the cylinder head surface.
Replace the cylinder head if necessary.
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2. Inspect for the following and repair or replace if necessary.
1. Sunken valve seats
2. Excessive camshaft oil clearance and end play
3. Measure the cylinder head for distortion in six directions as shown in the figure.
If it exceeds the maximum specification, replace the cylinder head.
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Cylinder head gasket contact surface distortion (Maximum)
0.10 mm {0.004 in}
2007 Mazda MX-5 Miata Sport