Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

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:

Inspection of valve clearance should be performed while engine is cold.

1. Remove the collector cover.

(1) Carefully pull up the rear of collector cover at two positions (A).

(2) Carefully pull up the front of collector cover at two positions (B) while moving it forward.

2. Disconnect the ground terminal from battery sensor. NOTE

3. Lift up the vehicle.

4. Remove the under cover. Front Under Cover > REMOVAL

5. Lower the vehicle.

6. When inspecting valve clearances for #1, #3 and #5

(1) Remove the air intake duct. Air Intake Duct > REMOVAL

(2) Loosen the clamp (A) securing the air intake boot.

(3) Remove the bolt (B) securing the air intake boot to the collector cover bracket.

(4) Remove the air intake boot from the throttle body and the air cleaner case (rear), and move it to the left side wheel apron.

(5) Remove the air cleaner case. Air Cleaner Case > REMOVAL

(6) Remove the fuel pipe protector (RH).

(7) Disconnect the connector of oil pressure switch.

(8) Remove the ignition coil. Ignition Coil > REMOVAL

(9) Remove the rocker cover (RH). Camshaft > REMOVAL

7. When inspecting valve clearances for #2, #4 and #6

(1) Remove the battery. Battery > REMOVAL

(2) Disconnect the connector (A) and terminal (B) from the generator.

(3) Disconnect the connector (C) and connector (D) from the A/C compressor.

(4) Remove the harness cover (E) from the collector cover bracket.

(5) Remove the clip (F) from the fuel pipe protector (LH).

(6) Slide the harness and connector to the battery side.

(7) Disconnect the PCV hose from rocker cover (LH).

(8) Remove the fuel pipe protector (LH).

(9) Remove the ignition coil. Ignition Coil > REMOVAL

(10) Remove the rocker cover (LH). Camshaft > REMOVAL

8. Turn the crankshaft clockwise until the camshaft is set to position shown in the figure.

(1)

Valve clearance (intake side)

(2)

Valve clearance (exhaust side)

9. Measure the clearance of intake valve and exhaust valve using thickness gauge (A).

NOTE:

Measure it within the range of ±30° from specified position shown in the figure.

Insert a thickness gauge in a direction as horizontal as possible with respect to the valve lifter.

Valve clearance (inspection value):

Intake

0.20+0.04 −0.06 mm (0.0079+0.0016 −0.0024 in)

Exhaust

0.35±0.05 mm (0.0138±0.0020 in)

If the measured value is not within specification, take notes of the value in order to adjust the valve clearance later on.

10. If necessary, adjust the valve clearance. Valve Clearance > ADJUSTMENT

11. Further turn the crank pulley clockwise and then measure the valve clearances again.

12. After inspection, install the related parts in the reverse order of removal. Camshaft > INSTALLATION

Valve clearance
...

Adjustment
1. INTAKE SIDE1. Remove the engine from the vehicle. Engine Assembly > REMOVAL2. Measure all the valve clearances. Valve Clearance > INSPECTIONNOTE:Record each valve clearance after measurement.3. R ...

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