Service Instructions
The actual reading at which you
should change the filter will
depend on many factors as fuel
systems vary so greatly.
As a rule, many pumps have
trouble delivering fuel to the
engine when restriction reaches
7"-10" of mercury (inHg). Some
falter much earlier, some later.
Carry an extra Racor filter (or two)
and at the first indication of power
loss -usually at high RPMs- pull
over and note the gauge reading.
This should provide an idea when
future service is needed. Replace
dirty filter with a new Racor filter
at the earliest opportunity.
Note:
Do not use this kit
for USCG inspected marine
applications: Order Kit
number 1606B for dash-
mounted gauge.
Mounting Information
RK 11-1676E Vacuum Gauge
Center Reset Knob
1/4
"
NPT Threads
Rotating bezel ring to set the red
change-out line.
11-1668 Fitting
9/16
"
-18 UNF Threads
11350 T-handle o-ring
Black Restriction
Pointer
1.0 in.
(2.6 cm)
