RM36D0EC _51 Engine / Hybrid System _087037 M20C-FKS ENGINE MECHANICAL _0417214 CYLINDER HEAD A

M20C-FKS ENGINE MECHANICAL  CYLINDER HEAD  REPLACEMENT  


PROCEDURE

Hide 11122 1.REPLACE INTAKE VALVE GUIDE BUSH

a.

Heat the cylinder head sub-assembly to between 80 and 100°C (176 to 212°F).


b.

Place the cylinder head sub-assembly on wooden blocks.

CAUTION:

Be sure to wear protective gloves.



c.
A426813N01
1.208,0.896 0.604,1.396 0.604,1.396 1.135,1.188 true 0.458,1.427 0.802,1.656 0.344,0.229 10 true SST

Using SST and a hammer, tap out the intake valve guide bush.

SST
09201-01055  
09950-70010  (09951-07100)


d.
A426814

Using a caliper gauge, measure the intake valve guide bush bore diameter of the cylinder head sub-assembly.

Standard Intake Valve Guide Bush Bore Diameter:

10.285 to 10.306 mm (0.405 to 0.406 in.)


New Guide Bush Selection Chart:
Bush Size Specified Condition
STD 10.333 to 10.344 mm (0.40681 to 0.40724 in.)
O/S 0.05 10.383 to 10.394 mm (0.40877 to 0.40921 in.)


Standard Bush Length:

41.3 to 41.7 mm (1.63 to 1.64 in.)


HINT:
·

If the intake valve guide bush bore diameter of the cylinder head sub-assembly is more than 10.306 mm (0.406 in.), machine the intake valve guide bush bore of the cylinder head sub-assembly to a dimension of 10.335 to 10.356 mm (0.407 to 0.408 in.) to install an O/S 0.05 intake valve guide bush.

·

If the intake valve guide bush bore diameter of the cylinder head sub-assembly is more than 10.356 mm (0.408 in.), replace the cylinder head sub-assembly.




e.

Heat the cylinder head sub-assembly to between 80 and 100°C (176 to 212°F).


f.
A426815C01
1.198,0.906 0.615,1.365 0.615,1.365 1.135,1.156 true 2.427,1.385 2.635,1.563 0.208,0.177 10 true *a 0.438,1.396 0.833,1.625 0.396,0.229 10 true SST
*a Protrusion Height


Using SST and a hammer, tap in the selected intake valve guide bush.

SST
09201-10000  (09201-01050)
09950-70010  (09951-07100)

Standard Protrusion Height:

13.35 to 13.60 mm (0.526 to 0.535 in.)



g.
A426816

Using a sharp 5.5 mm reamer, ream the intake valve guide bush to obtain the standard oil clearance.

Standard Oil Clearance:

0.025 to 0.060 mm (0.000984 to 0.00236 in.)



Hide 11126 2.REPLACE EXHAUST VALVE GUIDE BUSH

a.

Heat the cylinder head sub-assembly to between 80 and 100°C (176 to 212°F).


b.

Place the cylinder head sub-assembly on wooden blocks.

CAUTION:

Be sure to wear protective gloves.



c.
A426817N01
0.927,0.99 1.542,1.073 1.542,1.073 1.052,1.208 true 1.573,0.99 2.031,1.188 0.458,0.198 10 true SST

Using SST and a hammer, tap out the exhaust valve guide bush.

SST
09201-01055  
09950-70010  (09951-07100)


d.
A426818

Using a caliper gauge, measure the exhaust valve guide bush bore diameter of the cylinder head sub-assembly.

Standard Exhaust Valve Guide Bush Bore Diameter:

10.285 to 10.306 mm (0.405 to 0.406 in.)


New Guide Bush Selection Chart:
Bush Size Specified Condition
STD 10.333 to 10.344 mm (0.40681 to 0.40724 in.)
O/S 0.05 10.383 to 10.394 mm (0.40877 to 0.40921 in.)


Standard Bush Length:

43.3 to 43.7 mm (1.70 to 1.72 in.)


HINT:
·

If the exhaust valve guide bush bore diameter of the cylinder head sub-assembly is more than 10.306 mm (0.406 in.), machine the exhaust valve guide bush bore of the cylinder head sub-assembly to a dimension of 10.335 to 10.356 mm (0.407 to 0.408 in.) to install an O/S 0.05 exhaust valve guide bush.

·

If the exhaust valve guide bush bore diameter of the cylinder head sub-assembly is more than 10.356 mm (0.408 in.), replace the cylinder head sub-assembly.




e.

Heat the cylinder head sub-assembly to between 80 and 100°C (176 to 212°F).


f.
A426819C01
0.927,0.927 1.51,0.854 1.51,0.854 1.042,1.188 true 3.083,1.333 3.281,1.51 0.198,0.177 10 true *a 1.552,0.729 2,0.948 0.448,0.219 10 true SST
*a Protrusion Height


Using SST and a hammer, tap in the selected exhaust valve guide bush.

SST
09201-10000  (09201-01050)
09950-70010  (09951-07100)

Standard Protrusion Height:

13.75 to 14.00 mm (0.541 to 0.551 in.)



g.
A426820

Using a sharp 5.5 mm reamer, ream the exhaust valve guide bush to obtain the standard oil clearance.

Standard Oil Clearance:

0.030 to 0.065 mm (0.00118 to 0.00256 in.)



Hide 11115A 3.REPLACE RING PIN

NOTICE:

It is not necessary to remove the ring pins unless they are being replaced.


a.

Remove the 2 ring pins.


b.
A426821C01
2.167,2.667 2.479,2.823 0.313,0.156 10 false *a
*a Protrusion Height


Using a plastic-faced hammer, tap in 2 new ring pins to the cylinder head sub-assembly.

Standard Protrusion Height:

6.5 to 7.5 mm (0.256 to 0.295 in.)