Dashpot: Testing and Inspection

DASHPOT INSPECTION

1. INSPECT AND ADJUST DASHPOT
A. Warm up engine
Allow the engine to warm up to normal operating temperature.
B. Check idle speed

Idle speed: 700 ± 50 rpm
(Transmission in neutral position)

C. Check and adjust dash pot setting speed
(a) Disconnect the control cables from the throttle body.
(b) Push the dashpot push rod all the way with a screw-driver.
(c) Check that the dashpot is set.

Dashpot setting speed:
M/T: 2,600 ± 400 rpm
A/T: 1,800 ± 400 rpm





(d) Adjust the dash pot setting speed by turning the dashpot adjusting screw.
(e) Reconnect the control cables to the throttle body.
D. Check VTV operation
(a) Maintain the engine at 3,500 rpm.
(b) Release the throttle valve and check that the engine returns to idle in a few seconds.