Reverse Delay Valve
- Connect external vacuum source to port on colored (non-White) side of delay valve. Connect 1 end of a 2' (.61 m) rubber hose to vacuum gauge and other end to port on White side of valve.
- With elapsed time device in view and a constant 10 in. Hg. vacuum applied, note time required for gauge pointer to move from 0 in. Hg. to 8 in. Hg.
- If valve fails to meet time limits, replace valve. If valve meets specifications, install with non-White side toward vacuum source.
Reverse Delay Valve Time Limits
| Valve Color |
Min. Time |
Max. Time |
| White/Purple |
0.3 |
0.7 |
| White/Gray |
0.6 |
1.6 |
| White/Gold |
0.8 |
2.3 |
| White/Brown |
1.0 |
3.0 |
| White/Yellow |
4.5 |
13.2 |
| White/Red |
14.0 |
47.2 |