159369-3400 ZEXEL 9 421 620 826 BOSCH COILED SPRING 9421620826 1593693400 1157235850

1. Remove cylinder head bolts (1) and (2).
When lifting cylinder head, care must be taken to keep cylinder head level to prevent damage to the two cylinder head-to-spacer block dowels.
2. Lift the cylinder head off the spacer block. The approximate weight of the cylinder head is 236 kg (520 lb). The following steps are for the installation of the cylinder head.3. Thoroughly clean cylinder head and spacer block surfaces.4. Position the head gasket and the cylinder head onto the dowels in the spacer block. Lower the cylinder head onto the spacer block.5. Put engine oil on the threads of bolts (1) and (2), then install bolts. Tighten bolts (1) and (2) as follows:
Cylinder Head Tightening Sequencea. Tighten bolts 1 thru 26 in number sequence shown to a torque of 150 15 N m (110 11 lb ft).b. Tighten bolts 1 thru 26 in number sequence shown to a torque of 275 15 N m (200 11 lb ft).c. Retorque bolts 1 thru 26 in number sequence shown to 275 15 N m (200 11 lb ft).d. Tighten bolts 27 thru 33 in number sequence show to a torque of 25 7 N m (18 5 lb ft).End By:a. install valve cover baseb. install (EUI) fuel injectorsc. install rocker arm assemblies and push rodsd. adjust all the valve rocker arm clearances.e. install water outlet manifoldf. install exhaust manifold