9. Position, then push the heater bracket tabs onto filter base runner as shown
in the illustration below.
10. Attach the flag connectors of the heater to the 2-wire feed-thru. The wires
are color-coded; however, the heater has no polarity so you can hook either
wire to either of the two wires from the feed-thru plug. Use pliers to ensure
the connectors seat properly
11. The wires must be routed smoothly so they go around the distance from the
feed-thru to the heater. In the next step, the centrifuge and conical parts will
be re-attached to the base. The wires should be clear of the conical (item#
12) and be ‘hidden’ within the void of the conical. Also, the wires should not
be pinched by the installed conical if installed properly.
12. Now re-install the turbine centrifuge, checkball, checkball gasket, and
conical parts (from step 5) onto the filter base. Start the threading process
slowly so you don’t cross-thread the centrifuge threads. Once started, hand
tighten snugly (specification: 90 inch lbs). Double-check to make sure the
heater wires are not protruding or getting pinched by the conical.
13. Apply a generous coating of
silicone grease to the new bowl
gasket and position it in the base
gasket gland. The grease should
hold the gasket in position.
Note: If the gasket appears to
be a smaller diameter than the
base gasket gland, it may be
necessary to ‘stretch’ it by pulling
on opposite ends a few times.
Do this a little at a time until the
gasket lays flat within the gland.
14. Secure the bowl to the base
using the bowl ring and four
capscrews. Note: Using a shop
cloth, clean the capscrew threads
of any moisture or debris. Apply
a drop or two of threadlocker to
threads. Avoid cross-threading
the base threads by starting each
capscrew one at a time. Start the
thread engagement by hand. Do
not force the capscrew, it should
thread several turns by hand
with little resistance. Tighten
each capscrew in a ‘cross-wise’
pattern hand tight (specification:
55-65 in.lbs) Do not over tighten
to avoid stripping out the base
threads! Ensure the bowl drain is
closed.
15. Replace the filter element into
the housing and prime the Racor
by filling the housing slowly with
clean fuel.
16. Apply silicone grease to the new
lid gasket (same size as the bowl
gasket) and T-handle O-ring.
Re-attach the lid and T-handle to
the housing and tighten snugly
by hand only. Do not use tools for
leverage. (specification: 90 in.lbs)
17. Prime the fuel system per
manufacturer’s instructions, if
applicable.
18. Reattach the battery. Start the
engine and let it run for a minute.
Check the fuel system for leaks.
Correct as necessary with the
engine off and pressure relieved
from the filter assembly.
500FG Partial Cutaway
Thermostat
Heater with
insulator—do not
remove insulator
from heater.
Bracket Tab
Center
Tube
