LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Sterling >> 1987 >> 825 SL, 2.5 A >> Repair and Diagnosis >> Engine Performance >> System >> Air Intake Control System >> Testing >> Dashpot System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Dashpot System

  1. Check vacuum lines for proper connection, leaks, cracking or clogging. Disconnect vacuum hose from dashpot diaphragm and connect a vacuum pump to hose. SeeFig 1 . Apply 10 in. Hg vacuum, and check that vacuum releases slowly. If vacuum holds or releases quickly, replace dashpot check valve and retest.
  2. 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: Dashpot System Diagram
G65189Courtesy of AMERICAN HONDA MOTOR CO., INC.
Fig 2: View of By-Pass Control System
G65190Courtesy of AMERICAN HONDA MOTOR CO., INC.