Mazda MX-5 Miata Sport 2007 Manual page 43

2006-08 ENGINE Mechanical - Overhaul - 2.0L (LF) & 2.3L (L3) - Mazda6 & MX-5 Miata
Fig. 43: Measuring Tappet Hole Inner Diameter
Courtesy of MAZDA MOTORS CORP.
2. Measure the tappet body outer diameter in X and Y directions at the two points (A and B) shown in the
figure.
Tappet diameter (Standard)
30.970-30.980 mm {1.2193-1.2196 in}
3. Subtract the tappet body outer diameter from the tappet hole inner diameter.
If it exceeds the specification, replace the tappet or cylinder head.

Tappet-to-Tappet bore oil clearance (Standard)
0.02-0.06 mm {0.0008-0.0023 in}
Tappet-to-Tappet bore oil clearance (Maximum)
0.15 mm {0.006 in}
2007 Mazda MX-5 Miata Sport