EMISSION
CONTROL SYSTEM
CHARCOAL CANISTER
CAUTION:
1.
Handle the charcoal canister with utmost care, for most likely it has absorbed gasoline.
2. Never attempt to disassemble the charcoal canister. The charcoal canister has been so constructed
that it is integral with the check valve.
WLI-72036
Valve
closing
pressure
1
0.28 kg/crn2 (+210 rnrntig)
I
(3.98
psi
(+210
rnmtig))
INSPECTlON
Check the charcoal canister for continuity between ports, as
follows:
I.
When you blow your breath into the canister through the
port A
(TO
CARB), there should be no continuity. Also,
when you blow you breath strongly into the canister
through the port B
(TO
TANK), there should be continuity.
2.
While blowing breath strongly into the canister through the
port C, perform the continuity check of the cheek valves
located at the ports A and B, following the procedure
VCV Characteristics
Q
,Biyl
:7
i,
I
:
f
f;?b
\
a
C
/.
\
Close
+I90 +210+230
mmHg
I
1
Fig.
12-35
'NM-7
2038
given below.
Fig.
12-34
WM-12037
...
(1) When the port A is plugged with finger, air should emit
from the port
B.
(2)
When the port
B
is plugged with finger, air should emit
from the port A.
MAIN
AIR
BLEED
In order to maintain proper air-to-fuel ratio during heavy load
operation, a VCV has been provided at the main air bleed No.
2.
When the turbocharging pressure exceeds 0.28 kg/cm2
(+210 mmHg), the VCV closes.
As a result, the air ceases flowing from the surge tank to the
main air bleed No.
2.
VCV Specifications
To
air cleaner
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