Toyota Celica Supra 1986 Service And Repair Manual page 92

EC-8 EMISSION CONTROL SYSTEMS - Fuel Evaporative Emission Control IEVAP) System
Purge Pipe,
.!Tonk Pipe
l t11Cit
==~~Compressed
Air
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I 101
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INSPECTION OF CHARCOAL.CANISTER
1. REMOVE CHARCOAL CANISTER
2. VISUALLY INSPECT CHARCOAL CANISTER CASE
Look for cracks or damage.
3. CHECK FOR CLOGGED FILTER AND STUCK CHECK
VALVE
Ia) Using low pressure compressed air, blow into the tank
pipe and check that the air flows without resistance
f rom the other pipes.
(b) Blow into the purge pipe and check that the air does
not flow from tho other pipes.
If a problem i s found replace the charcoal canister.
4 . CLEAN CANISTER FILTER
Clean the filter by blowing 3 kg/em' 143 psi, 294 kPa) of
compressed air into the t ank pipe, while holding the other
upper canister pipe closed.
NOTE:
• Do not attempt to wash the canister.
• No activated carbon should come out.
5. INSTALL CHARCOAL CANISTER
INSPECTION OF BVSV
CHECK BVSV BY BLOWING AIR INTO PIPE
(a) Drain the coolant from the radiator into a suitable con·
tainer.
(b) Remove the BVSV from the water outlet.
lcl Cool the BVSV to below 35°C t95°F) w ith cool water.
(d) Blow air into a pipe and check that the BVSV is closed.
tel Heat the BVSV to above 54°C (129°F) w ith hot
w ater.
(I}
Blow air into a pipe and check that the BVSV is open.
tgl Apply liquid sealer to the threads of the BVSV and
install.
lhl Fill the radiator w ith coolant.
If a problem is found, replace the BVSV.