[MotoSook]

See my comments..additions:

Cold Test (requires a cold car):

1. Hook up gauge between WUR and Fuel distributor.
2. Disconnect electrical plug to WUR [not really necessary. From cold, you can watch the pressure climb w/ or w/o the engine running]
3. Jumper fuel pump so it runs [see #2]
4. Observe readings on pressure gauge and compare against chart for proper values.


Warm Test:
1. Leave gauge in place as it was for cold test
2. Connect electrical plug to WUR
3. Jumper fuel pum so it runs [not necessary..see #4]
4. Turn on ignition (so there's power to the WUR) [and engine, as the WUR warm up is element and engine heat dependent]
5. Watch pressure rise once power is applied to the WUR
6. Observe final warm value

System Test:
1. Leave gauge in place as connected above.
2. Close valve on outbound/WUR side of gauge setup.
3. Jumper fuel pump so it runs
4. Observe system pressure

Approximate values for '76 WUR:

Cold values:
50 deg 18-23psi
70 deg 25-32 psi
90 deg 34-39 psi

Warm pressure = 40-45psi

System pressure = 65 - 75psi

[Don't forget the residual pressure: leave gauge in line with the dist-wur and shut the engine off...watch it drop, then com e back 10-20 minutes later]