Timing Belt: Service and Repair

TIMING BELT REMOVAL

CAUTION:
- After removing timing belt, do not rotate crankshaft and camshaft separately because valves will hit piston heads.
- Do not bend or twist timing belt too tightly.
- Ensure timing belt, camshaft sprocket, crankshaft sprocket and belt tensioner are clean and free from oil or water.
- Before installing timing belt, confirm that No.1 cylinder is set at top dead center (T.D.C.) on compression stroke.
- Align arrow in direction of timing belt rotation.
- Adjust timing belt tension with all spark plugs removed.

1. Remove the following parts.
- Front right side splash cover
- Front right side under cover





2. Remove the following belts.
- Power steering oil pump drive belt
- Compressor drive belt
- Alternator drive belt








3. Set No. 1 cylinder at top dead center (T.D.C.) on its compression stroke.
4. Remove the water pump pulley and crankshaft pulley.

NOTE: The crankshaft pulley is accessible after removing side cover from inside R.H. wheel house.





5. Remove right side engine mounting bracket.

NOTE: Support engine by placing a jack under oil pan. Do not place jack under oil pan drain plug.





6. Remove upper and lower dust covers. Use a torx wrench.





7. Loosen timing belt tension lock nut and rotate tension clock- wise. Then tighten tensioner lock nut.
8. Mark rotating direction mark on timing belt and Remove timing belt.

CAUTION:
After removing timing belt, do not rotate crankshaft and camshaft separately because valves will hit piston heads.

9. Remove belt tensioner and return spring.
10. Inspect the condition of belt tensioner and tensioner spring.

INSTALLATION
1. Confirm that No.1 cylinder is set at T.D.C. on its compression stroke.








2. Ensure that marks on camshaft sprocket and upper front cover and marks on crankshaft sprocket and lower front cover are properly aligned.
3. Temporarily install tensioner and return spring.





4. Rotate tensioner clockwise about 70° to 80° and temporarily tighten lock nut.
5. Set timing belt.
a. Ensure that timing belt and sprockets are clean and free of oil or water. Do not bend timing belt tightly.
b. Install timing belt with rotating direction mark facing engine rotating direction.
c. Ensure that timing belt is not loose around jack shaft and camshaft sprockets.
6. Loosen tensioner lock nut so that tensioner pushes on timing belt.





7. Turn camshaft sprocket about 20° (2 cogs) clockwise.

NOTE: Ensure that all spark plugs are removed.

8. Tighten nut while preventing tensioner from turning in "free" direction.

Tensioner lock nut: 16 - 21 N.m (12 - 15 ft.lbs.)

9. Install crank sprocket plate and upper and lower dust covers.