Valve Clearance: Adjustment

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Measure all the valve clearances. < Refer to INSPECTION , Valve Clearance. >
NOTE: Record the measured value of each valve clearance.

Fig 1: Measuring Valve Clearances
Courtesy of SUBARU OF AMERICA, INC.
Remove the camshaft. < Refer to REMOVAL , Camshaft. >
Remove the valve lifter.
Measure the thickness of valve lifter using micrometer.

Fig 2: Measuring Thickness Of Valve Lifter Using 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.

Unit: mm (in)
Intake valve: S = (V + T) - 0.19 (0.0075) Exhaust valve: S = (V + T) - 0.35 (0.0138)
S: Valve lifter thickness required V: Measured valve clearance T: Current valve lifter thickness

Install the camshaft. < Refer to INSTALLATION , Camshaft. >
Install the cam sprocket. < Refer to INSTALLATION , Cam Sprocket. >
Install the timing belt. < Refer to TIMING BELT , INSTALLATION, Timing Belt. >
Measure all valves for valve clearance again at this time. If the valve clearance is not within the adjustment value, repeat the procedure over again from step 2).
Valve clearance (adjustment value):

Intake

0.20 ^+0.01 _-0.03 mm (0.0079 ^+0.0004 _-0.0012 in)

Exhaust

0.35±0.02 mm (0.0138±0.0008 in)
After adjustment, install the related parts in the reverse order of removal.