Timing Chain Tensioner Replacement - Crankshaft
Removal ProcedureCaution: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the timing chain housing. Refer to Timing Chain Housing Replacement.
3. Remove the spark plugs in order to make rotating the crankshaft to line up the timing marks easier.
Important:
^ The timing marks must be correctly aligned before disassembly.
^ Do not turn the camshafts and the crankshaft once the timing chain tensioner is removed. Valve and piston damage may occur.
4. Rotate the crankshaft so that the following conditions are met:
^ The number 1 (front most) cylinder is at the Top Dead Center (TDC) position on the compression stroke.
^ The keyway on the crankshaft (5) aligns with the mark on the engine block (4).
^ The arrow (3) on the idler sprocket is pointing upward.
^ The guide pins (1) on the camshaft sprockets line up with the notches (6) on the cylinder head.
5. Remove the 2 bolts (1) and the crankshaft timing chain tensioner.
6. Inspect that the latch and teeth of the crankshaft timing chain tensioner are undamaged and that the tensioner functions correctly.
Installation Procedure
1. Hold back the latch, compress the plunger and install a retainer (a paper clip or similar tool) to hold the plunger in place.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the timing chain tensioner.
^ Tighten the 2 bolts (1) to 11 Nm (97 inch lbs.).
3. Remove the retainer.
4. Turn the crankshaft 2 revolutions realigning the keyway on the crankshaft (5) with the timing mark on the engine block (4).
5. Ensure that the guide pins on the camshafts (1) are in line with the notches on the cylinder head (6).
6. Apply engine oil to the following:
^ The timing chains
^ The tensioner
^ The guides
^ The sprockets
7. Install the spark plugs.
^ Tighten the spark plugs to 25 Nm (18 ft. lbs.).
8. Install the timing chain housing. Refer to Timing Chain Housing Replacement.
9. Connect the negative battery cable.