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ZMZ-40906 ENGINE
Engine Suspension
During operation, check tightening of threaded joints of the
front and the rear engine suspensions (see Appendix 2) and condi-
tion of the mounts. No delamination and breakage of the engine
mounts is allowed.
Engine cylinder head
During operation of the engine, the cylinder head bolt tighten-
ing is not required. Perform the tightening only when the engine
is cold, if necessary. In order to provide a tight and even contact
of the cylinder head bolt with the gasket, perform the tightening
in a sequence shown in Fig. 9.1. in two steps. Tighten the bolts
evenly using a torque wrench (refer to Appendix 2).
Fig. 9.1. Sequence of
the cylinder head bolt
tightening.
Engine gas distribution mechanism
Camshaft drive is a two-stage chain. Chain tension is provided
for by hydraulic tensioners.
WARNING! Do not take the hydraulic tensioner out of the
chain cover to prevent disengagement of the piston with the casing
caused by the wrap spring.
The valves are driven from the camshafts directly via the
hydraulic pushers.Using the hydraulic pushers eliminates the need
for clearances adjustment.
Engine lubrication system
The engine should be stopped immediately when a lubrica-
tion system malfunction is registered.