Engine body - Service procedures
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2
Apply a uniform 2 mm (0.08") bead of sealant (1161231-4) on the timing gear casing as per the figure.
Fit the tool 6772 at the front tappet. Adjust the length of the rod on the tool so that it pressures slightly on the tappet.
4 Fit the timing gear casing within 20 minutes. Tighten the screws with 40 Nm (30 lbf.ft).
3
Camshaft, checking of wear (With the camshaft fitted)
Special tool: 6772 1 Remove the valve covers. Remove the screws for the rocker arm bearing supports and remove the rocker mechanism. Lift out the push rods.
Turn the engine until the rod (tappet) is in its lower position. Check that the rod is tensioned and set the dial test indicator to zero. 4 Turn the engine round until the push rod (tappet) is in its upper position. Read off the dial test indicator and compare with the values in Workshop Manual, Technical Data for each engine concerned. 5 Fit the push rods and rocker arm bridges after all cams have been checked. Adjust the valve clearance.
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