Specifications

DFP4 2011 Operation Manual
43
6.4.2. Adjusting the Valve Clearance
Use the above diagram(s) and the steps below to properly adjust the valve clearance.
1. Release locknut (4)
2. Use an Allen key (7) to turn the set screw (5) so that the correct clearance is
attained after locknut (4) has been tightened.
3. Check and adjust the valve clearance on all cylinders.
4. Reinstall the valve cover, with a new gasket, if necessary.
6.4.2.1. Valve Clearance Adjustment Schematic
Crankshaft Position 1:
Turn the crankshaft until both valves in
cylinder 1 overlap (with the exhaust valve
about to close and the inlet valve about to
open). Adjust the clearance of the valves
(marked in black) on the schematic. After
adjusting each rocker arm, mark them with
chalk to indicate that they have been
adjusted.
Crankshaft Position 2:
Turn the crankshaft one full revolution (360
degrees). Then adjust the clearance of the
valves (marked in black) indicated on the
schematic.