Specifications

DFP4 2011 Operation Manual

6.4. Adjustments

The following section contains information on adjustments that should be made to your

engine at given service and maintenance periods.

6.4.1. Checking the Valve Clearance

Using the above diagram, please follow the steps below to adjust your engines valve

clearance:

1. Remove the valve cover

2. Position the crankshaft as directed by the schematic in section 6.4.2.1.

3. Before adjusting the valve clearance, allow the engine to cool down for at least 30

minutes. The oil temperature should be below 80 degrees C

4. Check the valve clearance labeled (1) between the rocker arm / tappet contact face

(2) and valve stem (3) with a feeler gage (6) (see diagram below).

NOTE: There should only be a slight amount of resistance when the feeler gage is

inserted. See section 8.1 for the permissible valve clearance.