MX-5 Miata L4-2.0L (2008)
20. Loosen the camshaft cap bolts in several passes in the order shown.
Note
^
The cylinder head and the camshaft caps are numbered to make sure they are reassembled in their original position. Do not mix the caps.
21. Remove the camshafts.
22. Remove the tappet.
23. Select proper adjustment tappet.
New adjustment tappet
= Removed tappet thickness + Measured valve clearance- Standard valve clearance (IN: 0.25 mm (0.0098 in), EX: 0.30 mm (0.0118 in)
Valve clearance [Engine cold]
IN: 0.22-0.28 mm (0.0087-0.0110 in)
EX: 0.27-0.33 mm (0.0107-0.0129 in)
24. Apply the gear oil (SAE No.90 or equivalent) to each journal of the cylinder head as shown in the figure.
25. Install the camshaft with No.1 cylinder camshaft lobes aligned with the TDC position.