Removal and Inspection
CAUTION:- After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike piston heads.
- When installing rocker arms, camshafts, chain tensioner, oil seals, or other sliding parts, lubricate contacting surfaces with new engine oil.
- Apply new engine oil to bolt threads and seat surfaces when installing cylinder head, camshaft sprockets, crankshaft pulley, and camshaft brackets.
REMOVAL
1. Release fuel pressure.
2. Remove engine under covers.
3. Remove front RH wheel and engine side cover.
4. Drain coolant by removing cylinder block drain plug and radiator drain cock.
5. Remove radiator.
6. Remove air duct to intake manifold.
7. Remove drive belts and water pump pulley.
8. Remove generator and power steering pump.
9. Disconnect the following parts:
- Vacuum hoses
- Fuel hoses
- Wires
- Harness
- Connectors
10. Remove all spark plugs.
11. Remove rocker cover bolts in numerical order.
12. Remove rocker cover and oil separator.
13. Remove intake manifold supports.
14. Remove oil filter bracket and power steering oil pump bracket.
15. Set No. 1 piston at TDC of its compression stroke.
- Rotate crankshaft until mating mark on camshaft sprocket is set at position indicated in figure.
16. Remove chain tensioner.
17. Remove distributor. Do not turn rotor with distributor removed.
18. Remove timing chain guide.
19. Remove camshaft sprockets.
- For retiming in cylinder head removal, apply paint mark to timing chain matched with mating marks of camshaft sprockets.
20. Remove oil tubes, baffle plate, camshaft brackets and camshafts.
- Mark these parts original positions for reassembly.
21. Remove starter motor.
22. Remove the following water hoses:
- Water hose for cylinder block.
- Water hoses for heater.
23. Remove knock sensor harness connector.
24. Remove EGR tube.
25. Remove cylinder head outside bolts.
26. Remove cylinder head bolts in numerical order.
- Removing bolts in incorrect order could result in a warped or cracked cylinder head.
- Loosen cylinder head bolts in two or three steps.
27. Remove cylinder head completely with intake and exhaust manifolds.
28. Remove oil pans.
29. Remove oil strainer and baffle plate.
30. Remove crankshaft pulley.
31. Set a suitable transmission jack under main bearing beam.
32. Remove RH engine mounting.
33. Remove front cover and oil pump drive spacer.
- Inspect for oil leakage at front oil seal. Replace seal if oil leak is present.
34. Remove timing chain guides and timing chain.
INSPECTION
Check for cracks and excessive wear at roller links. Replace chain if necessary.