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TAPPET CONSTRUCTION [L8, LF, L3]

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• The tappet is a shimless tappet which is integrated with the shim.
• The tappet surface is phosphate-coated to smooth the attaching surface to the cam and improve abrasion resistance.
• The valve clearance can be adjusted by replacing the tappet. There are 35 kinds of tappets depending on the thickness. The tappet kind can be determined by the engraved identification mark (3 digits).

Tappet Specification.

Discernment mark | Tappet thickness (mm {in}) | The number of jumps (mm {in})
--- | --- | ---
725-625 | 3.725-3.625 {0.1467-0.1427} | 0.025 {0.00098}
602-122 | 3.602-3.122 {0.1418-0.1229} | 0.02 {0.00078}
100-000 | 3.100-3.000 {0.1220-0.1181} | 0.025 {0.00098}

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1 | Tappet
2 | Camshaft
3 | Tappet sectional view
4 | Cam lob contact surface
5 | Valve stem contact surface
6 | Identification mark position