Mitsubishi Outlander manuals

Mitsubishi Outlander: Camshaft

REMOVAL AND INSTALLATION

Mitsubishi Outlander. Engine Overhaul

Removal steps

  1. Engine oil control valve (OCV) exhaust
  2. O-ring
  3. Engine oil control valve (OCV) intake
  4. O-ring
  5. Front camshaft bearing cap
  6. Oil feeding camshaft bearing cap
  7. Camshaft bearing cap
  8. Thrust camshaft bearing cap
  9. Bearing
  10. Camshaft intake
  11. Camshaft exhaust
  12. Bearing
  13. Valve tappet

REMOVAL SERVICE POINTS

FRONT CAMSHAFT BEARING CAP / CAMSHAFT BEARING CAP REMOVAL

CAUTION

Loosing the installation bolts for the camshaft bearing cap at the same time causes the valve spring force, which makes the installation bolts jump out, resulting in the damaged threads. Always loose them four or five times.

First remove a mounting bolt of the front camshaft bearing cap and then a mounting bolt of each camshaft bearing cap in the order shown in the illustration.

Mitsubishi Outlander. Engine Overhaul

VALVE TAPPET REMOVAL

Pick out valve tappets with fingers and store removed valve tappets with tags describing the installed position attached for reassembly.

INSTALLATION SERVICE POINTS

VALVE TAPPET INSTALLATION

Install valve tappets at the same position based on tags describing the installed position for reassembly.

CAMSHAFT / BEARING / CAMSHAFT BEARING CAP INSTALLATION

1. When replacing a camshaft bearing, select a bearing with the size corresponding to the identification mark in the table below.

2. Install camshaft bearings on the cylinder head.

Mitsubishi Outlander. Engine Overhaul

Mitsubishi Outlander. Engine Overhaul

3. The identification mark of the camshaft bearing is painted at the illustrated position.

Mitsubishi Outlander. Engine Overhaul

4. Set the dowel pins of the camshaft at the illustrated positions.

Mitsubishi Outlander. Engine Overhaul

5. Camshaft bearing caps Number 1 to Number 4 are of the same shape. Install them upon checking the identification mark so as not to misidentify cap Number and to confuse the intake side with the exhaust side.

Identification mark (stamped on front and Number 1 to Number 4 bearing caps)
I: Intake side
E: Exhaust side

6. Tighten each camshaft bearing cap mounting bolt to the specified tightening torque of 12 +- 1 N*m (107 +- 1 in-lb) in the order of number shown in the figure in two or three steps.

Mitsubishi Outlander. Engine Overhaul

7. Tighten each front camshaft bearing cap mounting bolt to the temporarily torque of 17 +- 3 N*m (14 +- 2 ft-lb) in the order of number shown (1).

8. Tighten each front camshaft bearing cap mounting bolt to the specified tightening torque of 30 +- 2 N*m (22 +- 1 ft-lb) in the order of number shown (2).

Mitsubishi Outlander. Engine Overhaul

O-RING / ENGINE OIL CONTROL VALVE INSTALLATION

CAUTION

1. Apply a small amount of engine oil to the O-ring of the oil feeder control valve.

2. Install the oil feeder control valve on the cylinder head.

3. Tighten the oil feeder control valve to the specified tightening torque of 10 +- 2 N*m (89 +- 17 in-lb).

Mitsubishi Outlander. Engine Overhaul

INSPECTION

CAMSHAFT

Measure camshaft height (camshaft major axis). If the height exceeds the limit, replace the camshaft.

Standard value:
Intake: 44.1 mm (1.736 inch)
Exhaust: 45.0 mm (1.772 inch)

Limit:
Intake: 43.6 mm (1.717 inch)
Exhaust: 44.5 mm (1.752 inch)

Mitsubishi Outlander. Engine Overhaul

CAMSHAFT OIL CLEARANCE (PLASTIGAGE METHOD)

1. Thoroughly wipe oil on the outside diameter of the camshaft and the inside diameter of the bearing.

2. Install the bearing to the camshaft.

3. Put straightly the plastigage having the length of the bearing width on the journal axis, centering the axis.

4. Carefully install the bearing cap. Tighten the bolt as instructed in >>B<< Bolt Installation Point.

5. Remove the bolt and the bearing cap carefully.

Mitsubishi Outlander. Engine Overhaul

6. Measure the plastigage whose width is most compressed using the scale printed on the plastigage bag. When the measured value deviates from the standard one, replace the bearing.

Standard value: 0 − 0.032 mm (0.0013 inch)

CAUTION

When the bearing is used again, be careful not to reverse the cylinder head side and the camshaft side at the installation.

Mitsubishi Outlander. Engine Overhaul

VALVE TAPPET

1. Check the thickness stamp.

Mitsubishi Outlander. Engine Overhaul

2. If the measured value in the table value is not in agreement with the value in the table to the thickness stamp, replace the valve tappet.

There are 47 kinds of valve tappets at intervals of 0.015 mm (0.0006 inch) in the range between 3.000 (0.1181 inch) and 3.690 mm (0.1453 inch).

Mitsubishi Outlander. Engine Overhaul

Mitsubishi Outlander. Engine Overhaul

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 Symptom Procedures

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