Dashpot: Testing and Inspection

1. Start engine and warm-up to normal operating temperature.
2. Check that idle speed is 800 rpm.
3. Remove cap, filter and separator from dash pot.

Dashpot Filter:

4. Maintain engine speed at 2,500 rpm with the throttle valve. Use your finger to plug the vacuum transmitting valve (VTV) hole inside DP housing.

Checking DP Setting Speed:

5. Release the throttle valve and check DP setting speed.

DP Setting Speed: 1,500 rpm

NOTE: All setting speeds are with the cooling fan OFF.



6. If not as specified, adjust the DP adjusting screw.

Adjusting Dashpot:

7. Repeat steps 4 and 5. Release your finger from the vacuum transmitting valve (VTV) hole.
8. The engine should return to normal idle speed in about one second.
9. If a problem is found, replace the dash pot.
10. Reinstall the separator, the filter and the cap.