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>> C << RETAINER LOCK INSTALLATION Mitsubishi Lancer Evolution IX

Overhaul - Lancer Evolution 9 illustrations ~523 words

>> C << RETAINER LOCK INSTALLATION

Using special tool MD998735 or MD998772, compress the valve spring and insert the retainer lock into position.

Note. The valve spring, if excessively compressed, causes the bottom end of retainer to be in contact with the stem seal, and damage it.

Scheme 825

Scheme 825: >> C << RETAINER LOCK INSTALLATION
Scheme 825: >> C << RETAINER LOCK INSTALLATION

Scheme 826

Scheme 826
Scheme 826

Scheme 827

Scheme 827: >> D << CYLINDER HEAD BOLT INSTALLATION
Scheme 827: >> D << CYLINDER HEAD BOLT INSTALLATION

Scheme 828

Scheme 828
Scheme 828

Scheme 829

Scheme 829
Scheme 829

Scheme 830

Scheme 830
Scheme 830
  1. When the removed cylinder head bolts are to be reused, check that the shank length of each bolt meets the limit. If it exceeds the limit, replace the bolts. Limit: 99.4 mm (3.91 inches)
  2. Apply engine oil to the thread of the bolts and to the washers.
  3. Using special tool MB991654 tighten the bolts to the specified torque 78 +/- 2 N. m (58 +/- 1 ft-lb), using the tightening sequence shown.
  4. Loosen all bolts fully in the reverse order of tightening.
  5. Retighten the loosened bolts to 20 +/- 2 N. m (15 +/- 1 ft-lb) in the tightening sequence shown. CAUTION: If the bolt is turned less than 90 degree angle, proper fastening performance may not be achieved. Be careful to turn each bolt exactly 90 degree angle. If the bolt is overtightened, loosen the bolt completely and then retighten it by repeating the tightening procedure from step 1 .
  6. Make a paint mark across each bolt head and cylinder head.
  7. Tighten the cylinder head bolts 90 degree angle in the specified order.
  8. Tighten the bolts another 90 degree angle in the same order as in step 7 , and check that the paint marks on the cylinder head bolt are aligned with the paint marks on the cylinder head.

Scheme 831

Scheme 831: CYLINDER HEAD
Scheme 831: CYLINDER HEAD
  1. Before cleaning the cylinder head, check it for water leaks, gas leaks, cracks, and other damage.
  2. Remove all oil, water scale, sealant, and carbon. After cleaning the oil passages, blow air through them to verify that they are not blocked.
  3. Check the cylinder head gasket surface for flatness by using a straight edge and feeler gauge. Standard value: 0.05 mm (0.0020 inch) Limit: 0.2 mm (0.008 inch)
  4. If flatness exceeds the specified limit, grind the gasket surface to specification. Grinding limit: *0.2 mm (0.008 inch) *Includes/combined with cylinder block grinding Cylinder head height (Specification when new): 131.9 - 132.1 mm (5.193 - 5.201 inches)

Scheme 832

Scheme 832: VALVE
Scheme 832: VALVE
  1. Check the valve face for correct contact. If contact is uneven or incomplete, reface the valve seat.
  2. If the margin is less than specified, replace the valve. Standard value: Intake: 1.0 mm (0.039 inch) Exhaust: 1.5 mm (0.059 inch) Limit: Intake: 0.5 mm (0.020 inch) Exhaust: 1.0 mm (0.039 inch)
  3. Measure the valve length. If the measurement is less than specified, replace the valve. Standard value: Intake: 109.50 mm (4.311 inches) Exhaust: 109.70 mm (4.319 inches) Limit: Intake: 109.00 mm (4.291 inches) Exhaust: 109.20 mm (4.299 inches)

Scheme 833

Scheme 833: VALVE SPRING
Scheme 833: VALVE SPRING
  1. Measure the valve spring free height. If the measurement is less than specified, replace the spring. Standard value: 50.4 mm (1.98 inches) Limit: 49.4 mm (1.94 inches)
  2. Measure the squareness of the spring. If the measurement is less than specified, replace the spring. Standard value: 2° or less Limit: 4°