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Component Testing: Canister

  1. Remove 4 hoses from canister and mark them for reinstallation. Blow air into canister "TANK" port and check that air flows out of bottom canister port.
  2. Blow air into canister "PURGE" port and check that air does not flow out of any of the other 4 ports.
  3. Using a vacuum pump, slowly apply vacuum to canister "CARB" port while blowing air into canister "PURGE" port. When vacuum increases above 3.1 in. Hg, check that air flows out of "TANK" port, "C BOWL" port, and canister bottom port. Replace canister if it does not operate as outlined.
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