Exhaust Side

WARNING: This page is about a different variant/trim than selected.

CAUTION: If engine oil is spilt onto the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.

NOTE: Adjustment of valve clearance should be performed while engine is cold.

Measure all the valve clearances. Ref. to INSPECTION , Valve Clearance.
NOTE: Record each valve clearance after measurement.
Remove the camshaft. Ref. to REMOVAL , Camshaft.
Remove the valve lifter.
Measure the thickness of valve lifter using micrometer.

Fig 1: Measuring Thickness Of Valve Lifter With Micrometer
Courtesy of SUBARU OF AMERICA, INC.

Select a valve lifter of suitable thickness using the measured valve clearance and valve lifter thickness, and install it.

NOTE: Use a new valve lifter.

VALVE LIFTER THICKNESS CHART

Unit: mm (in)
S = (V + T)-0.35 (0.0138)
S: Valve lifter thickness required V: Measured valve clearance T: Valve lifter thickness to be used

Install the camshaft. Ref. to INSTALLATION , Camshaft.
Install the cam sprocket. Ref. to INSTALLATION , Cam Sprocket.
Install the timing chain assembly. Ref. to INSTALLATION , Timing Chain Assembly.
Measure all valve clearance again at this time. If the valve clearance is not correct, repeat the procedure over again from the first step.
Valve clearance (adjustment value):

0.35±0.05 mm (0.0138±0.0020 in)
After measuring, install the related parts in the reverse order of removal.
NOTE: Use a new rocker cover gasket.