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1. Remove the tappet bucket from the cylinder head.
2. Remove the shim.
1. Tappet bucket
2. Shim
The shim may withdraw with the tappet bucket.
3. Measure the original shim, using a micrometer and select the appropriate new shim as
required.
• Clearance too small - Fit a thinner shim.
• Clearance too large - Fit a thicker shim.
Shims are available ranging from 1.70 mm to 3.10 mm in increments of 0.025 mm.
4. Fit the new shim to the valve.
5. Lubricate the tappet bucket(s) with a 50/50 solution of engine oil and
molybdenum disulphide grease.
6. Refit the tappet bucket.
7. Repeat the procedure until all valves requiring adjustment have been correctly
set.
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