Installation
TIMING CHAINNOTE Refer to "Liquid Gasket Application Procedure"
Service and Repair
Before installation, wipe off the protruding sealant.
CAUTION: After removing timing chain, do not turn crankshaft and camshaft separately, or valves will strike piston heads.
When installing camshafts, chain tensioners, 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 camshaft sprockets and crankshaft pulley
Before disconnecting fuel hose, release fuel pressure.
GBe careful not to damage sensor edges.
Do not spill engine coolant on drive belts.
TIMING CHAIN:
Front Timing Chain Case:
Rear Timing Chain Case:
Camshaft Bracket:
Installation
1. Position crankshaft so that No. 1 piston is set at TDC on compression stroke.
2. Install crankshaft sprocket on crankshaft.
Make sure that mating marks on crankshaft sprocket face front of engine.
3. Install lower chain guide on dowel pin, with front mark on the guide facing upside.
4. Press and shrink the secondary chain tensioner sleeve, and fix it using stopper pins.
Lubricate threads and seat surfaces of camshaft sprocket bolts with new engine oil.
Mating Marks:
5. Install secondary timing chain and sprocket to one of the banks (Right bank shown in the figure) as described below.
a. Align mating marks (golden links) on secondary timing chain with those (punched marks) on the intake and exhaust sprockets.
b. Align camshaft knock pins with the sprocket groove and hole.
Because camshaft sprocket mounting bolts are tightened in step 7, perform manual tightening to the extent necessary to keep camshaft knock pin from dislocating.
Matching marks of the intake sprocket are on the back side of the secondary sprockets. There are two types of the marks; round and oval types, which should be used for right and left banks respectively.
Right bank:...........Round
Left bank:............Oval
It may be difficult to visually check the dislocation of mating marks during and after installation. To make the matching easier, make a mating mark on the sprocket teeth in advance using paint.
6. Install secondary timing chain and sprocket to the other bank. Install primary timing chain at the same time.
- Installation of the secondary timing chain follows the procedure described in step 5.
- Install primary timing chain so that mating mark (punched on camshaft sprocket is aligned with that (dark blue link) on the timing chain, and mating mark (notched on crankshaft sprocket is aligned with that on the timing chain, respectively.
- When it is difficult to align mating marks of the primary timing chain with each sprocket, gradually turn the camshaft hexagonal head using a spanner so it is aligned with the mating mark.
- During alignment, be careful to prevent dislocation of mating marks on the secondary timing chain.
7. After confirming the mating marks are aligned, tighten the camshaft sprocket mounting bolts.
Secure the camshaft hexagonal head using a spanner to tighten mounting bolts.
8. Pull out the stopper pin from the secondary timing chain tensioner.
9. Install internal guide.
10. Install upper tension guide and slack guide.
11. Install timing chain tensioner, then remove the stopper pin.
When installing the timing chain tensioner, engine oil should be applied to the oil hole and tensioner.
12. Install O-rings on rear timing chain case.
13. Apply liquid gasket to front timing chain case.
Before installation, wipe off the protruding sealant.
14. Install rear case pin into dowel pin hole on front timing chain case.
15. Tighten bolts to the specified torque in order shown in the figure.
Leave the bolts unattended for 30 minutes or more after tightening.
16. Install intake valve timing control valve cover.
a. Install O-rings at front timing chain case.
b. Install seal ring at intake valve timing control valve covers.
c. Apply liquid gasket to intake valve timing control valve covers. Use genuine RTV silicone sealant or equivalent.
Being careful not to move the seal ring from the installation groove, align the dowel pins on the chain case with the holes to install the intake valve timing control valve cover.
Tighten in numerical order as shown in the figure.
17. Install RH and LH rocker covers.
Rocker cover tightening procedure:
Right Rocker Cover Bolt Torque Sequence:
Left Rocker Cover Bolt Torque Sequence:
Tighten in numerical order as shown in the figure.
a. Tighten bolts 1 to 10 in that order to 6.9 to 8.8 Nm (0.7 to 0.9 kg-m, 61 to 78 inch lbs.).
b. Then tighten bolts 1 to 10 as indicated in figure to 6.9 to 8.8 N m (0.7 to 0.9 kg-m, 61 to 78 inch lbs.).
18. Hang engine using the right and left side engine slingers with a suitable hoist.
19. Set a suitable transmission jack under the suspension member.
20. Remove right and left side engine mounting nuts.
21. Remove right and left side suspension member bolts.
22. Install aluminum oil pan.
23. Set ring gear stopper using the mounting bolt hole.
Be careful not to damage the signal plate teeth.
24. Install crankshaft pulley to crankshaft.
Align pointer with TDC mark on crankshaft pulley.
25. Install crankshaft pulley bolt.
Lubricate thread and seat surface of the bolt with new engine oil.
a. Tighten to 39 to 49 Nm (4.0 to 5.0 kg-m, 29 to 36 ft. lbs.).
b. Put a paint mark on the crankshaft pulley.
c. Again tighten by turning 60° to 66°, about the angle from one hexagon bolt head corner to another.
26. Install camshaft position sensor (PHASE), crankshaft position sensors (REF)/(POS) and intake valve timing control position sensors.
27. Reinstall removed parts in the reverse order of removal.
After starting engine, keep idling for three minutes. Then rev engine up to 3,000 rpm under no load to purge air from the high-pressure chamber of the chain tensioners. The engine may produce a rattling noise. This indicates that air still remains in the chamber and is not a matter of concern.