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Figure 7 Replacing rear cover oil seal
Figure 8 Fitting rear cover
3. Slacken alternator mountings and remove fan belt.
4. Unscrew four nuts and lock washers and remove the water
pump from the cylinder block.
5. Unscrew the mounting bolt and pull off the crankshaft
pulley.
6. Remove seven bolts, two nuts and lock washers and detach
the timing cover from the cylinder block.
7. Extract the oil seal from the cover using special tool no. RT
7480 and drive handle part no. 550 (Figure 9).
8. Fit new oil seal using special tool no. RT 7480 and drive
handle locating as shown in (Figure 10).
9. With the aid of centralising tool no. RT 7481 fit the timing
chain cover with a new gasket to the cylinder block, securing with the
seven bolts, two nuts and lock washers.
10. Refit crankshaft pulley, water pump and fan belt. Secure
and tighten alternator.
11. Refit the radiator, reconnect the hoses and refill the cooling
system.
Figure 9 Extracting front cover oil seal
Figure 10 Replacing front cover oil seal
Operation 7 Timing chain replacement (with front cover
removed)
1. Release locking plate, unscrew two bolts, remove camshaft
sprocket and lift off timing chain.
2. Fit new timing chain to crankshaft and camshaft sprocket
which can be secured to the camshaft with the two bolts and the
locking plate.
3. Check the valve timing, ensuring that the timing mark on
the camshaft sprocket aligns with the woodruff key on the crankshaft
(Figure 12).
4. Inspect the cam chain tensioner blade for wear and replace
if necessary.
Operation 8 Camshaft sprocket alignment
1. First ensure that the timing mark on the camshaft sprocket
aligns exactly with the woodruff key on the crankshaft to align with
either no. 1 or no. 4 piston on TDC.
2. Release the locking plate, unscrew two bolts and remove
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