CYLINDER HEAD-E.8 E20 E21 4. Fit the push rods in their locations then carefully fit the rocker shaft assembly, noting that the valve adjusting screw ends locate in their respective push rod cups and the oil feed to the rocker shaft is located correctly. 5. Locate the oil feed pipe nut just finger tight at this stage, then evenly tighten the rocker shaft bracket securing nuts to a torque of 12 - 15 Ibf It (1,7 2 kgf m) now tighten the oil feed pipe nut. When correctly located the oil feed pipe will be as shown in Fig. E.2. NOTE: If the oil feed pipe nut is tightened before the rocker shaft bracket securing nuts, :he pipe will either be strained or the olive pulled off the feed pipe. 6.
Adjust the valve clearances to 0.012 in (0.3 mm) as follows:- Turn the engine so that the valves of No.1 cylinder are in the position of 'valve overlap', i.e. the period between the opening of the inlet valve and the closing of the exhaust valve. In this position, adjust the clearances of No. 4 cylircder valves: similarly with the valves of No. 3 cylinder in the overlap position, adjust the valves of No. 2 cylinder. With valves of No. 4 in the overlap pOSition, adjust the valves of No. 1 cylinder and finally with valves of No.2 cylinder in overlap position, adjust valves on NO.3 cylinder. 7. Replace the dynamo or alternator adjusting link and tension the fan belt (Refer to Page M.1 i. E22