Removal
TIMING CHAIN:
COMPONENT KEY FOR TIMING CHAIN:
CAUTION: Apply new engine oil to parts marked in illustration before installation.
REMOVAL
1. Remove engine assembly from vehicle.
2. Remove the following components and related parts:
- Drive belt auto tensioner and idler pulley.
- Thermostat housing and hose.
- Oil pan and oil strainer.
- Ignition coil (When camshaft sprocket is removed).
- Rocker cover (When camshaft sprocket is removed).
3. If necessary, remove intake valve timing control position sensor (right and left) and camshaft position sensor (PHASE) from intake valve timing control cover and front cover.
CAUTION: Handle components and parts carefully to avoid dropping and shocks.
Do not disassemble.
4. If necessary, remove intake valve timing control solenoid valve from intake valve timing control cover.
CAUTION: Handle components and parts carefully to avoid dropping and shocks.
Do not disassemble.
5. Remove intake valve timing control cover as follows:
a. Loosen and remove fixing bolts in the reverse order of that shown in figure.
b. Use seal cutter or the equivalent to cut liquid gasket for removal.
CAUTION: Exercise care not to damage mating surfaces.
Pull out cover keeping levelness without an angle, as inner part of cover is engaged with the center of intake cam sprocket.
6. Obtain compression TDC of No. 1 cylinder as follows:
TIMING MARK:
a. Turn crankshaft pulley clockwise to align the TDC identification notch (without paint mark) with timing indicator on front cover.
b. At this time, check that the mating mark on camshaft sprocket is in the position as shown in the figure.
If the mating mark does not come in the position shown, turn crankshaft pulley once more to bring the mark in the position.
7. Remove crankshaft pulley as follows:
a. Lock crankshaft with a hammer handle or similar tool to loosen fixing bolts.
b. Pull crankshaft pulley with both hands to remove it.
CAUTION: Do not remove fixing bolts. Keep loosened fixing bolts in place to protect removed crankshaft pulley from dropping.
Do not remove balance weight (inner hexagon bolt) at the front of crankshaft pulley.
8. Remove front cover as follows:
a. Loosen and remove fixing bolts in the reverse order of that shown in figure.
b. Use seal cutter or the equivalent to cut liquid gasket for removal.
CAUTION: Exercise care not to damage mating surfaces.
9. If replacement of front oil seal is necessary, lift the seal with a screwdriver for removal.
10. Remove oil pump drive spacer.
Install bolts into two bolt holes [M6 x pitch 1.0 mm (0.04 inch)] on front surface. Using a small puller, pull spacer off from crank shaft.
NOTE: The center-to-center dimension between the two bolt holes is 33 mm (1.30 inch).
11. Remove oil pump.
12. Remove chain tensioner on left bank.
NOTE: To remove timing chain and associated parts, start with those on left bank. The procedure for removing parts on right bank is omitted because it is the same as that for left bank.
a. Press tab in the direction of arrow (or turn lever in the direction of arrow) to unlock the locking with the groove that stops tensioner plunger from returning.
Lightly press tensioner plunger to release the tension of spring for this operation.
b. Push in tensioner plunger to align the hole on lever and that on pump main body.
Pushing in tensioner too far does not allow the holes to align. Therefore, push in plunger to the degree at which the start of stopper groove and tab engages.
c. Insert a stopper pin [hard wire with approximately 0.5 mm (0.020 inch) diameter or a similar tool] to fix plunger. With plunger fixed, remove chain tensioner.
13. Remove chain tensioner guide and slack guide.
14. Remove timing chain and crankshaft sprocket.
15. With hexagonal part of camshaft locked with wrench, loosen bolts securing camshaft sprocket to remove camshaft sprocket.
CAUTION: To avoid interference between valves and pistons, do not turn crankshaft or camshaft with timing chain is disconnected.
16. Using the same procedure as for left bank, remove timing chain and associated parts on right side.
INSPECTION AFTER REMOVAL
Check for cracks and at link plates. Replace chain if necessary.