PPI-105 REV B IMPCO Technologies Inc. April, 2008
Page 24 of 29
3030 South Susan St.
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C. Series II LPR Secondary Pressure Test Adapter (AF4-31105) and Series III EPR Secondary
Pressure Test Adapter (AF4-50254-002):
To connect the secondary pressure test adapter to the Series II LPR or Series III EPR:
•
Shut off the LPG tank manual shut-off valve.
•
Start the engine and let it run until it dies.
•
Turn off the ignition key.
•
Remove the Secondary Test Port Cap retainer pin and pull the cap out of the LPR / EPR.
Series II LPR
•
Install the pressure test adapter (make sure to reinstall the retainer pin before starting the
engine).
•
Connect one end of a section of 3/16” vacuum hose (H1-11) to the hose nipple on the
pressure test adapter and the other to the center hose nipple on differential gauge TG-010
(see section B in this chapter for gauge connections).
Series III EPR Illustration
•
Test for leaks before opening the LPG tank manual shut-off valve.
•
When reinstalling the test port cap, examine the o-rings for any cuts, splits or abrasions.
Replace any that are damaged. Apply a little clean engine oil to the o-rings before inserting
the cap into the test port.
•
Inspect the test port cap retaining pin for deformation and install it making sure the turned-
down end of the pin is securely seated in its hole (see section E in this chapter).
•
Test for leaks before opening the LPG fuel tank shut-off valve.