We remove the timing chain and drive parts when replacing parts. This operation is usually performed during a major engine overhaul.
Procedure:
- 1. Disconnect the cable from the negative terminal of the battery.
- 2. Loosen the mounting bolts and remove the engine trim cover (A).
Models before 2009
Models since 2009
- 3. Remove the right front wheel.
- 4. Remove the right side of the engine guard.
- 5. Set the No. 1 cylinder piston to TDC on the compression stroke (see "Checking and Adjusting Valve Clearances").
- 6. Remove the side engine mount bracket.
- a) Place a trolley jack under the engine oil pan, then slightly raise the engine until the side mount is free of load.
Note: Place a wooden block between the oil pan and the support foot of the trolley jack.
b) Remove the bolts and nuts securing the side engine mount bracket (A).
- b) Loosen the bolts and nuts securing the side engine support bracket (A).
- c) Remove the side engine support bracket.
- 7. Temporarily loosen the coolant pump pulley mounting bolts.
8. Remove the accessory drive belt (A).
- 9. Remove the idler roller (A).
- 10. Remove the accessory drive belt tensioner (B).
- 11. Remove the coolant pump pulley (A).
- 12. Remove the crankshaft pulley (B).
- 13. Remove the engine mount bracket (C).
14. (2009 and later models) Disconnect the power steering fluid pressure sensor connector (A) and the CWVT (exhaust) valve connector (B).
15. Disconnect the ignition coil connectors (A).
16. Remove the ignition coils (A).
17. Disconnect the positive crankcase ventilation hose (A) and the ventilation hose from the cylinder head cover.
18. Remove the cylinder head cover (A).
19. Loosen the bolts and remove the air conditioning compressor.
20. Remove the A/C compressor bracket (A).
21. Drain the engine oil.
22. Remove the oil pan (A).
Caution: do not damage the mating surfaces of the cylinder block and oil pan.
23. Loosen the bolts and use a screwdriver to remove the timing chain cover (A).
24. Use a screwdriver to press the plunger, then insert the rod into the timing chain tensioner hole.
25. Remove the timing chain tensioner (A).
26. Remove the timing chain tensioner guide (B).
27. Remove the timing chain.
28. Remove the timing chain tensioner (A).
29. Remove the oil jet (A) and crankshaft sprocket (B).
30. Use a screwdriver to press the plunger, then insert a suitable rod into the hole in the chain tensioner.
31. Remove the chain tensioner (A), tensioner guide (B), and balancer chain guide (C).
32. (Except 2.0L models since 2009) Remove the four bolts and housing (A) and balancer drive chain (B).
Caution: Do not disassemble the balancer housing or oil pump.
33. (2.0L 2009 and later models) Remove the three bolts and oil pump housing (A) and balancer chain (B).
Caution: Do not disassemble the oil pump housing.
Checking
Checking the Tensioner
- 1. Check the chain tensioner for oil leaks. If leaks are present, replace the tensioner.
- 2. Inspect the tensioner plunger for wear or damage. Replace the tensioner if necessary.
- 3. Check that the timing chain tensioner plunger has sufficient travel and that the tensioner ratchet mechanism is in good working order.
Inspecting Tensioner Components
1. Inspect the tensioner guide for cracks, peeling, or other defects on surface "A" (the sliding contact with the timing chain) and on surface "B," which is in contact with the tensioner. Replace the tensioner guide if necessary.
2. Inspect the chain guide for cracks, delamination, or other defects on surface "A" (the sliding contact with the timing chain). Replace the chain guide if necessary.
Chain Inspection
Inspect the chain components (bushings and plates) for wear. Replace the chain if wear is excessive.
Drive Component Inspection
- 1. Inspect the camshaft sprocket teeth and crankshaft sprocket for excessive wear, cracks, or other defects. Replace the defective part if necessary.
- 2. Check the accessory drive belt idler pulley for ease and smooth rotation, and ensure there is no excessive play or abnormal noise during rotation. Replace if necessary.
- 3. Replace the accessory drive belt idler pulley if signs of grease leakage from its bearing are detected.
- 4. Check the crankshaft pulley for vibration during rotation, oil contamination, and dust deposits in the accessory drive belt groove.
- 5. Check the condition Accessory Drive Belt
Installation
1. Ensure that the TDC marks for cylinder #1 on the exhaust camshaft sprocket and on the intake camshaft CVVT clutch are aligned with each other (aligned with the top surface of the cylinder head).
Note: Ensure that the crankshaft dowel pin is facing upward (toward the cylinder head gasket) when aligning the marks.
2. Align the balance shaft marks as shown in the figure.
3. (Except 2.0L models since 2009) Install the balancer housing and chain, aligning the color marks on the chain and sprockets of the crankshaft and balancer shaft, and tighten the bolts evenly, in several passes, in the sequence shown in the figure.
Tightening torque:
- 1 pass…… 17 Nm
- 2nd pass…… 60°
- 3rd pass…… 60°
4. (2.0 models since 2009) Install the oil pump housing and drive chain.
- a) Make sure the piston of the first cylinder is at TDC on the compression stroke.
- b) Install the crankshaft sprocket.
- c) Tighten the oil pump drive chain tensioner bolts, then insert the rod into the hole in the tensioner lock plate and lock the plunger in the depressed position.
- d) Secure it to the crankshaft sprocket.
e) Install the oil pump housing and tighten the bolts evenly, in several passes, in the sequence shown in the figure.
Tightening torque;
- Pass 1…… 9 Nm
- Pass 2…… 17 Nm
- Pass 3……25 Nm
e) Set the control and remove the rod from the tensioner.
Tightening torque… 10 - 12 Nm
5. Install the balancer chain guide (C), chain tensioner guide (B), and chain tensioner (A), then remove the rod.
Tightening torque… 10 - 12 Nm
6. Install the crankshaft sprocket (B) and oil injector (A).
Tightening torque …… 8 - 10 Nm
7. Install the timing chain guide (A).
Tightening torque…… 10 - 12 Nm
8. Install the timing chain, aligning the marks on the chain and sprockets.
A - crankshaft sprocket, B - chain guide, C - CVVT sprocket, D - exhaust camshaft sprocket.
9. Install Tensioner guide (B) and timing chain tensioner (A), then remove the rod.
Tightening torque …… 10 - 12 Nm
10. Rotate the crankshaft two revolutions clockwise and ensure that the timing marks on the camshaft sprockets are positioned as shown in the illustration.
11. Install the timing chain cover.
- a) Clean the mating surfaces of the cylinder block and cylinder head under the cover, as well as the timing chain cover flange, from any remaining old sealant.
- b) Degrease the surface for applying sealant on the timing chain cover flange, as well as the mating surface on the cylinder block and cylinder head under the cover.
- c) Apply a continuous bead of sealant with a diameter of 2.5 mm along the timing chain cover flange and in the locations shown in the figure.
Caution: Do not allow sealant to squeeze out from the cover area on the timing chain side.
d) Align the dowel pin on the cylinder block with the hole in the timing chain cover and install the cover.
d) Evenly tighten the timing chain cover bolts in several steps.
Tightening torques:
- M6 bolt ……8 - 10 Nm
- M8 bolt … 19 - 23 Nm
Attention:
- - Parts must be assembled within 5 minutes after application sealant, otherwise remove the sealant and reapply it.
- - After installing the timing chain cover, wait at least half an hour before starting the engine.
12. Install the oil pan.
- a) Clean the mating surfaces of the cylinder block and oil pan from any remaining old sealant.
- b) Degrease the surface of the oil pan before applying the sealant, as well as the mating surface on the cylinder block.
Sealant……Loctite 5900
c) Apply a continuous bead of sealant 2.5 mm in diameter along the timing chain cover flange and at the locations shown in the figure.
Sealant ……Loctite 5900
d) Install the oil pan (A) and tighten the mounting bolts evenly in several passes.
Moments Tightening torque:
- M8 bolt (B) … 27 - 31 Nm
- M6 bolt (C) … 10 - 12 Nm
Caution:
- - The parts must be assembled within 5 minutes after applying the sealant; otherwise, remove the sealant and reapply it.
- - After installing the oil pan, wait at least half an hour before starting the engine.
13. Install the air conditioning compressor bracket (A).
Tightening torque ……20 - 24 Nm
14. Install the air conditioning compressor.
Tightening torque ……20 - 25 Nm
- 15. Install the cylinder head cover (see the "Checking and adjusting valve clearances" section)
- 16. Install the ignition coils and connect the connectors (A).
17. Install the engine mount bracket (C).
Tightening torques:
- M10 bolt … 39 - 44 Nm
- M8 bolt 20 - 25 Nm
18. Install the crankshaft pulley (B), first securing the flywheel.
Tightening torques… 167 - 176 Nm
19. Install the coolant pump pulley (A).
Tightening torque… 8 - 10 Nm
20. Install the accessory drive belt tensioner and tensioner pulley (B).
Caution: the connection has reverse threads.
Tightening torque… 54 - 64 Nm
21. Install the idler pulley (A) and tighten the bolt.
Tightening torque… 54 - 64 Nm
22. Install the accessory drive belt (A) in the following sequence: crankshaft pulley, air conditioning compressor pulley, alternator pulley, idler pulley, power steering pump pulley, idler pulley, coolant pump pulley, tensioner pulley.
23. Install the engine mount bracket (A).
Tightening torque…… 64 - 83 Nm
- 24. Install the right side of the engine guard.
- 25. Install the right front wheel.
26. Install the decorative engine cover (A).
Tightening torque…4-6 Nm