Dashpot Check and Adjustment
DASHPOT CHECK AND ADJUSTMENTRequired Special Tool: MB991502: Scan Tool (MOT-II)
1. Inspect the idle speed before inspection and adjustment of the dashpot.
2. Before inspection, set the vehicle in the following condition:
- Engine coolant temperature: 80 - 95°C (176 - 203°F)
- Lights and all accessories: OFF
- Transaxle: Neutral
CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
3. Connect scan tool MB991502 to the data link connector.
4. Start the engine
5. Open the throttle valve until the dashpot rod makes a fullstroke.
6. Close the throttle valve slowly to find a point where the throttle lever contacts the dashpot rod (a point where the dashpot starts to contact). Hold the throttle valve at this point.
7. Check the engine speed (at which the dashpot starts to operate).
Standard value: 2,000 + 200 r/min
8. If the engine speed is not within the specified limit, loosen the lock nut on the rod and turn the rod to make adjustment for proper dashpot starting engine speed.
9. Release the throttle valve to make sure that the engine speed slowly drops to the idle speed.