Exhaust System - Suzuki Engine 2002 GRAND VITARA SQ420 Service Manual

6-6 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G16/J20 ENGINES)
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" in this section.
A small amount of fuel may be released after fuel line is dis-
connected.
In order to reduce the chance of personal injury, cover fitting
to be disconnected with a shop cloth. Put that cloth in an
approved container when disconnection is completed.
• Never run engine with fuel pump relay disconnected when
engine and exhaust system are hot.
• Fuel or fuel vapor hose connection varies with each type of
pipe.
When reconnecting fuel or fuel vapor hose, be sure to con-
nect and clamp each hose correctly referring to figure "Hose
Connection".
After connecting, make sure that it has no twist or kink.
• When installing fuel feed pipe union bolt or fuel delivery pipe
plug bolt, always use new gasket and tighten it to specified
torque. See "Fuel Delivery System" in Section 6 for specified
torque.
• When installing injector, fuel feed pipe or fuel pressure regu-
lator, lubricate its O-ring with spindle oil or gasoline.
[A] : With short pipe, fit hose as far as it reaches pipe joint as shown.
[B] : With following type pipe, fit hose as far as its peripheral projection as shown.
[C] : Wit bent pipe, fit hose as far as its bent part as shown or till pipe is about 20 to 30 mm
(0.79 – 1.18 in.) into the hose.
[D] : With straight pipe, fit hose till pipe is about 20 to 30 mm (0.79 –1.18 in.) into the hose.
1. Hose
2. Pipe
3. Clamp
"a" : Clamp securely at a position 3 to 7 mm (0.12 – 0.27 in.) from hose end.
"b" : 20 to 30 mm (0.79 – 1.18 in.)