FUEL
SYSTEM
FUEL
ADDITIVES
If fungus or bacteria
is
causing fuel problems, you should
have an authorized dealer correct these problems.
Then
use
a
diesel fuel biocide
to
sterilize the fuel (follow the manufac-
turer's instructions).
SPARES
While the likelihood
of
having
to
service the fuel system at
sea
is
slim, the possibility does exist. Therefore, we recom-
mend that banjo washers, injector seat washers, and a fuel fil-
ter be earned on board at all times. Purchase needed spares
from your local
UNIVERSAL
dealer or distributor.
If
a leak
should develop at a banjo washer that cannot be corrected
by
a simple tightening
of
the fitting, replace the sealing washer.
PRIMING
(BLEEDING)
THE
FUEL
SYSTEM
The
on-engine fuel system
is
virtually self priming.
Under
ordinary circumstances the engine's electric fuel lift
pump,
which
is
energized by the key switch/preheat button, will
supply a continuous flow
of
fuel from the tank. This fuel
is
drawn through the fuel/water separator to the engine lift
pump, the primary spin-on fuel filter, and the injection
pump.
A
WARNING:
Do
not
allow
smoking
or
open
flames
near
the
fuel
system
when
servicing.
Also
provide
proper
ventilation.
TO
FUEL
FILTER
FROM
FUEL
TANK
1L_---
CHECK
AND
CLEAN
filTER
AT
OIL
CHANGE
TO
FUEl
FILTER
FUEL
LIFT
PUMPS
-
FROM
FUEL
TANK
19
If
it
becomes necessary to bleed air from the system, use the
following procedure:
Loosen all the high pressure injector lines (not injectors)
and
crank the engine starter motor;
as
fue
I spurts from between
the nut and the line, tighten the injector Jines
in
sequence and
then tighten the bleed screw.
NOTE:
Do
not attempt this procedure
on
a hot engine.
A
WARNING:
Always
wear
protective
clothing,
safety
glasses
and
gloves
when
bleeding
high
pressure
injector
lines.
fiLTER
ELEMENT
Air
Cleaner/Silencer
CANISTER
AIR
CLEANERISILENCER
(ENGINE
M·3S8
SHOWN)
Some
UNIVERSAL
engines use a replaceable air filter cle-
ment wrapped around a metal canister. This element can
be
removed and brushed off
or
cleaned with an air hose. When
it
become too contaminated
it
can be replaced. The canister
with its interior element should also be removed and cleaned
periodically. Simply wash the assembled unit
in
a non*flarn*
mabIe cleaning solvent. Use this same cleaning procedure for
other
UNIVERSAL
air cleaners that use a similar type canis-
ter.
NOTE:
To
operate efficiently a diesel engine must intake a
continuous volume
of
clear
air.
Hard starting, an erratic idle,
alld black exhaust smoke are all symptoms
of
a restricted air
intake.
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