Suzuki WagonR+ RB310, Service Manual

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6-2-4 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
Precaution
Precaution on engine service
THE FOLLOWING INFORMATION ON ENGINE SERVICE
SHOULD BE NOTED CAREFULLY, AS IT IS IMPORTANT IN
PREVENTING DAMAGE, AND IN CONTRIBUTING TO RELI-
ABLE ENGINE PERFORMANCE.
• When raising or supporting engine for any reason, do not
use a jack under oil pan. Due to small clearance between oil
pan and oil pump strainer, jacking against oil pan may cause
it to be bent against strainer resulting in damaged oil pick-up
unit.
• It should be kept in mind, while working on engine, that 12-
volt electrical system is capable of violent and damaging
short circuits.
When performing any work where electrical terminals can be
grounded, ground cable of the battery should be discon-
nected at battery.
• Any time the air cleaner, throttle body or intake manifold is
removed, the intake opening should be covered. This will
protect against accidental entrance of foreign material which
could follow intake passage into cylinder and cause exten-
sive damage when engine is started.
Precaution on fuel system service
• Work must be done with no smoking, in a well-ventilated
area and away from any open flames.
• As fuel feed line (between fuel pump and fuel pressure regu-
lator) is still under high fuel pressure even after engine was
stopped, loosening or disconnecting fuel feed line directly
may cause dangerous spout of fuel to occur where loosened
or disconnected.
Before loosening or disconnecting fuel feed line, make sure
to release fuel pressure according to
“ Fuel Pressure Relief
Procedure ” . A small amount of fuel may be released after the
fuel line is disconnected. In order to reduce the possibility of
personal injury, cover the fitting to be disconnected with a
shop cloth. Put that cloth in an approved container when dis-
connection is completed.
• Never run engine with fuel pump relay disconnected when
engine and exhaust system are hot.