Withdrawal
Remove the chain cover Remove the flinger from the front of the crankshaft (see Figure 2A.17).
Rotate the chain tensioner cam back against the force of the spring, and remove the chain tensioner arm from the pivot pin on the front main bearing cap (see Figure 2A.18).
Unscrew the bolts and remove the chain tensioner. Bend the sprocket bolt fixing plate, then unscrew and remove the bolts. On Endura-E engines. note the position of the camshaft position sensor rotor plate.
Remove the sprocket along with the chain.
Inspection
Check the teeth on the sprockets for wear or damage.
The chain should always be replaced when the engine is overhauled.
Examine the rubber pad on the tension mechanism.
Installation
Install the chain tensioner in place and secure with bolts. Check that the front of the cam was parallel to the cylinder block. The maximum allowable difference between the two measured points of the tensioner and the cylinder block is 0.2 mm.
Rotate the crankshaft. so that the alignment mark on the sprocket is aligned with the center of the camshaft sprocket.
Install the chain on the camshaft sprocket, then install the chain on the teeth of the crankshaft sprocket. Install the camshaft sprocket onto the flange, and check that the sprocket bolt holes are aligned with the holes in the flange. Also check that the alignment marks of both sprockets are facing each other. If required, turn the camshaft to align the marks on the sprockets (see fig. 2A.19, 2A.20).
Bolt the camshaft sprocket. Secure the bolts from unscrewing by bending the fixation plate. Be mindful of rotor plate placement on Endura-E motors (see fig. 2A.21).
Depress the chain tensioner cam, and then install the tensioner lever onto the pivot pin. Release the cam so that it presses on the lever.
Install the oil slinger on the crankshaft. Install the camshaft timing chain cover.
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