Samurai 4WD L4-1324cc 1.3L SOHC 5 Carb 8V (1986)
Fig. 3 Vapor storage canister cross sectional view
This system prevents the emission of fuel vapors from the vehicle fuel system. The major components of the system are the vapor storage canister,
switch vent solenoid and liquid vapor separator, Fig. 2.
Fuel vapors from the fuel tank and carburetor float chamber are vented to the canister which contains charcoal. When the engine is running, the fuel
vapor stored in the canister is drawn into the intake manifold along with fresh air. The purge valve opens and allows the fuel vapors to be drawn into the
intake manifold through the purge line. Air is drawn in through a filter in the bottom of the canister, Fig. 3.
Fuel vapors are not purged while coolant temperature is low. The BVSV bleeds off the vacuum which would otherwise be applied to the purge valve.
As coolant temperature rises, the BVSV closes off the vacuum bleed, thus directing full manifold vacuum to the purge valve.
