TOYOTA RAV4 1996 Service Repair Manual

4. With cylinder No. 1 at TDC on compression stroke, use feeler gauge to check valve clearance between
valve lifter and camshaft on specified valves. Perform STEP 1. See Fig. 8
. Record valve clearance.
5. To check remaining valves, rotate crankshaft clockwise one full revolution (360 degrees) and realign
crankshaft pulley timing mark (groove) with "0" mark on timing chain cover. Using feeler gauge,
measure valve clearance on specified valves. Perform STEP 2. See Fig. 8
. Record valve clearance.
Fig. 8: Identifying Cylinder Numbers & Checking Valve Clearance (Corolla)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
6. Ensure valve clearance is within specification. See VALVE CLEARANCE SPECIFICATIONS
(COROLLA) table.
VALVE CLEARANCE SPECIFICATIONS (COROLLA)

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7. If valve clearance requires adjustment, camshafts must be removed for access to valve lifters. Different
thickness valve lifters are used. Manufacturer recommends placing reference mark on timing chain and
camshaft sprockets, removing timing chain tensioner and then removing camshaft sprockets and
camshafts for access to valve lifter while supporting timing chain. To remove camshafts, see appropriate
article in ENGINES.
8. Remove valve lifter from cylinder head. Using micrometer, measure thickness of valve lifter. See Fig. 9
.
Using measured clearance and valve lifter thickness, determine correct thickness of valve lifter to be used.
See Fig. 12
and Fig. 13 . Install replacement valve lifter, camshafts and timing chain. Recheck valve
clearance.
9. Before installing valve cover and gasket, apply sealant at specified areas on cylinder head. See Fig. 10
.
Install gasket, valve cover, seal washers, bolts and nuts. Tighten valve cover bolts/nuts to specification in
sequence. See Fig. 11
. See TORQUE SPECIFICATIONS . To install remaining components, reverse
removal procedure.
Fig. 9: Measuring Valve Lifter Thickness (Corolla)

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Application(1) In. (mm)
Intake.006-.010 (.15-.25)
Exhaust.010-.014 (.25-.35)
(1)Adjust valve clearance with engine cold.

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Fig. 10: Locating Valve Cover Sealant Application Areas (Corolla)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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1999 ENGINE PERFORMANCE On-Vehicle Adjustments - 4-Cylinder
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Fig. 11: Valve Cover Bolt/Nut Tightening Sequence (Corolla)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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Fig. 12: Intake Valve Lifter Selection Chart (Corolla)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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1999 ENGINE PERFORMANCE On-Vehicle Adjustments - 4-Cylinder
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Fig. 13: Exhaust Valve Lifter Selection Chart (Corolla)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Tacoma & 4Runner
1. Remove air cleaner hose along with upper cap on air cleaner and mass airflow meter. Remove intake air
connector for access to valve cover. Intake air connector fits between air cleaner hose and throttle body.
2. Disconnect spark plug wires from spark plugs. Disconnect engine wiring, clamps and PCV hose for
access to valve cover. Remove bolts, seal washers, valve cover and gasket.
3. Rotate crankshaft clockwise until crankshaft pulley timing mark (groove) aligns with "0" mark on timing
chain cover and cylinder No. 1 is at TDC on compression stroke. Cylinder No. 1 is front cylinder at
timing chain end of engine.
4. Ensure 1-dot and 2-dot timing marks on camshaft sprockets are aligned. See Fig. 14
. If timing marks are
not aligned, rotate crankshaft clockwise one full revolution (360 degrees) and realign crankshaft pulley
timin
g mark (groove) with "0" mark on timing chain cover.

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1999 ENGINE PERFORMANCE On-Vehicle Adjustments - 4-Cylinder
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Fig. 14: Aligning Camshaft Sprocket Timing Marks (Tacoma & 4Runner)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
5. With cylinder No. 1 at TDC on compression stroke, use feeler gauge to measure valve clearance between
valve lifter and camshaft on specified valves. Perform STEP 1. See Fig. 15
. Record valve clearance.
6. To check remaining valves, rotate crankshaft clockwise one full revolution (360 degrees) and realign
crankshaft pulley timing mark (groove) with "0" mark on timing chain cover. Using feeler gauge,
measure valve clearance on specified valves. Perform STEP 2. See Fig. 15
. Record valve clearance.

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Fig. 15: Identifying Cylinder Numbers & Checking Valve Clearance (Tacoma & 4Runner)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
7. Ensure valve clearance is within specification. See VALVE CLEARANCE SPECIFICATIONS
(TACOMA & 4RUNNER) table.
VALVE CLEARANCE SPECIFICATIONS (TACOMA & 4RUNNER)
8. If valve clearance requires adjustment, rotate crankshaft so camshaft lobe on valve to be adjusted is facing
upward, awa
y from valve lifter. Rotate valve lifter so notch on valve lifter is toward spark plug.
Application(1) In. (mm)
Intake.006-.010 (.15-.25)
Exhaust.010-.014 (.25-.35)
(1)Adjust valve clearance with engine cold.

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9. Valve Clearance Adjuster (SST 09248-55040) is used to remove adjusting shim. Using SST "A" of valve
clearance adjuster, press valve lifter downward. See Fig. 16
. Install SST "B" between camshaft and valve
lifter with side marked with No. 9 at designated position. See Fig. 16
. Remove SST "A".
Fig. 16: Removing & Installing Valve Clearance Adjusting Shim (Tacoma & 4Runner)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
10. Using small screwdriver and magnet, remove adjusting shim. Using micrometer, measure thickness of
adjusting shim removed. Using measured clearance and adjusting shim thickness, determine correct
thickness of adjusting shim to be used. See Fig. 17
and Fig. 18 .
11. Install replacement adjusting shim. Recheck valve clearance. To install remaining components, reverse
removal procedure.

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Fig. 17: Intake Valve Adjusting Shim Selection Chart (Tacoma & 4Runner)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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1999 ENGINE PERFORMANCE On-Vehicle Adjustments - 4-Cylinder
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