Dashpot System

NOTE: On Integra models, a dashpot is used only with manual transmission.

Check vacuum lines for proper connection, leaks, cracking or clogging. Disconnect vacuum hose from dashpot diaphragm and connect a vacuum pump to hose. See Fig 1 , Fig 2 , Fig 3 or Fig 4 . Apply 10 in. Hg vacuum, and check that vacuum releases slowly. If vacuum holds or releases quickly, replace dashpot check valve and retest.
Connect vacuum pump to dashpot diaphragm. Apply 10 in. Hg vacuum. Check that diaphragm rod pulls in and holds vacuum. If vacuum does not hold or diaphragm rod does not move, replace dashpot diaphragm and retest.

Fig 1: View of Air Intake Control System (Integra)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: View of Air Intake Control System (Legend - Sedan)

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Fig 3: View of Air Intake Control System (Legend - Coupe)

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Fig 4: Dashpot System Diagram

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Fig 5: View of By-Pass Control System

Courtesy of AMERICAN HONDA MOTOR CO., INC.