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EM/Engine Mechanical, page 10

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Engine Mechanical — MK3 Supra Engine Mechanical, page 10
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Page text (OCR transcript)
EM-10

ENGINE MECHANICAL — Engine Tune-Up

(b) Determine the replacement shim size by using the following (Formula or Chart).
• Using a micrometer, measure the thickness of the shim which was removed.
• Calculate the thickness of the new shim so the valve clearance comes within specified value.
T ........ Thickness of shim used
A ........ Valve clearance measured
N ........ Thickness of shim new

Intake side:     N = T + (A - 0.20 mm (0.0079 in.))
Exhaust side:  N = T + (A - 0.25 mm (0.0098 in.))

• Select a new shim with a thickness as close as possible to the calculated value.

HINT: Shims are available in 17 sizes, in increments of 0.050 mm (0.0020 in.), from 2.500 mm (0.0984 in.) to 3.300 mm (0.1299 in.).

(c) Install the new adjusting shim.
• Place the new adjusting shim on the valve lifter.
• Using SST (A), press down the valve lifter and remove SST (B).
SST 09248-55010
(d) Recheck the valve clearance.

7. INSTALL CYLINDER HEAD COVERS
(See step 4 on pages EM-55, 56)

8. INSTALL AIR INTAKE CONNECTOR

(a) Install a new gasket and intake connector with the four bolts and two nuts.
Torque: 180 kg·cm (13 ft-lb, 18 N·m)

(b) Install the air intake connector bracket mounting bolts.

EM0432

EM0472

EM3439

EM3479

SST(B)
SST(A)