How To Set Valve Clearances - Perkins 4012 Manual

4
4012/16 Diesel

How to set valve clearances

Special requirements
Special tools
Description Part number
Feeler gauges UA
1 Check the clearance using a feeler gauge (A1).
Note: The inlet and exhaust valve clearance is 0,4 mm (0.016").
2 To set the valve clearance loosen the locknut (A2).
3 Place the feeler gauge (A1) between the rocker and bridge piece.
4 Screw the adjuster (A3) up or down making the feeler gauge a slide fit.
5 Tighten the locknut to a torque of 50 Nm (35 lbf ft) without moving the adjuster.
6 Refit the rocker cover. Use a new gasket.
54 User's Handbook, TSL 4186E, Issue 2