Replace Valve Guide Bushings

(a) Gradually heat the cylinder head to 110 266 °F).

(b) Using SST and a hammer, tap out the guide bushing, SST 09201-01055, 09950-70010 (09951-07100)

(c) Using a caliper gauge, measure the bushing bore diameter of the cylinder head.

Select the new guide bushing (STD or O/S 0.05). if the bushing bore diameter of the cylinder head is greater than 10.306 mm (0.4057 in.), machine the bushing bore to the following dimension:

10.335 - 10.356 mm (0.4068 - 0.4077 in.) If the bushing bore diameter of the cylinder head is greater than 10.356 mm (0.4077 in.), replace the cylinder head.

Gradually heat the cylinder head to 80 - 100 °C (176 -212 °F).

Both intake and exhaust

Bushing bore diameter mm (in.)

Bushing size

10.488 - 10.506 (0.4129 - 0.4136)

Use STD

10.538 —10.556 (0.4149-0.4156)

Use O/S 0.05

Select the new guide bushing (STD or O/S 0.05). If the bushing bore diameter of the cylinder head is greater than 10.506 mm (0.4136 in.), machine the bushing bore to the following dimension:

10.538 - 10.556 mm (0.4149 - 0.4156 in.) If the bushing bore diameter of the cylinder head is greater than 10.556 mm (0.4156 in.), replace the cylinder head.

Gradually heat the cylinder head to 110- 130 °C (230 -266 °F).

(h) Using SST and a hammer, tap in a new guide bushing to the specified protrusion height. SST 09201-01055, 09950-70010 (09951-07100) Protrusion height:

1ZZ-FE 8.7 - 9.1 mm (0.342 - 0.358 in.) 2ZZ-GE 15.3 - 15.7 mm (0.602 - 0.618 in.)

(i) Using a sharp 5.5 mm reamer, ream the guide bushing to obtain the standard specified clearance (See page EM-48) between the guide bushing and valve stem.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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