Replacement Of Camshaft Housing Oil Seal

NOTE: There are two ways of oil seal replacement.

1. IF CAMSHAFT IS REMOVED FROM CAMSHAFT HOUSING:

(a) Remove the oil seal from the camshaft housing. • Using a screwdriver, pry out the oil seal.

(b) Install the new oil seal on the camshaft housing.

• Using SST, install the new oil seal. SST 09214-60010

2. IF CAMSHAFT HOUSING IS INSTALLED ON CYLINDER HEAD:

• As shown in the figure, cut off the oil seal lips.

(b) Remove the oil seals.

• Using a screwdriver, pry out the oil seal.

NOTE: Be careful not to damage the camshaft. Tape the screwdriver.

(c) Inspect the camshaft.

• Check the contact surface of camshaft oil seal lip for cracks or damage.

(d) Install the oil seal in the camshaft housings.

• Using SST, install the new oil seal. SST 09214-60010

3. INSTALL CAMSHAFTS IN CAMSHAFT HOUSINGS

(a) Insert the camshafts into each camshaft housing.

(b) Install the O-rings and rear end covers.

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4. BLEED LASH ADJUSTER

(a) Immerse the lash adjuster into light oil.

(b) Insert SST into the plunger hole and slide the plunger up and down several times while pushing down lightly on the check ball.

SST 09276-70010

(c) Repeat steps (a) and (b) when the plunger stroke is beyond about 0.5 mm (0.020 in.}.

(d> Replace the lash adjuster with a new one if the plunger stroke exceeds 0.5 mm (0.020 in.) even after repeating steps (a) and (b) several times.

NOTE: Do not disassemble the lash adjuster.

5. LASH ADJUSTER LEAK DOWN TEST

(a) Bleed the lash adjuster.

(b) Using a leak down tester, apply 20 kg (44.1 lb. 196 N) of pressure to the plunger and measure its slide down speed after it has slid down about 2 mm (0.08

Leak down time: 2 — 7 seconds per 1 mm (0.04 in.)

(c) Make sure that the match hole on the No. 2 journal of the camshaft housing is aligned with that of the camshaft.

6. CHECK OIL PRESSURE REGULATOR FOR LASH

ADJUSTER (See page LU-9)

Plunger

Side Match Hole

Homing Side Hole

Side Match Hole

IMOS3

7. INSTALL LASH ADJUSTERS AND ROCKER ARMS

8. INSTALL CAMSHAFT HOUSINGS WITH CAMSHAFTS

(a) Place new gaskets over dowels on the cylinder head.

(b) Position the camshaft housing over dowels on the cylinder head.

(c) Install and tighten the housing nuts and bolts gradually in three passes in the sequence shown. Torque the nuts and bolts on the final pass.

9. INSTALL CYLINDER HEAD COVERS

(a) Install the gaskets to the cylinder heads.

(b) Place head covers on the camshaft housing and install tho seals and screws.

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  • eden
    How to replace camshaft seal on celica 89?
    8 years ago

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