R-
A29
FIG.
20
INJECTION PUMP (All N.A. ENGINES)
ll
INJECTION PUMP (TURBO ENGINES)
1
2
I
1.
Max
speed
stop
screw
2.
Idling
stop
screw
&
locknut
TO ADJUST IDLING SPEED: When properly serviced and after the initial “break
-
in” period, your engine should
idle as indicated on spec sheet.
Engine must be at normal operating temperature when making adjustments. With engine running, loosen the idle
screw locknut which
is
on side of fuel injection pump. Adjust the idle speed screw until eingine is idling at correct
speed and then tighten locknut. Operate the throttle lever to make certain that same returns to same setting.
Note:
If
engine is new or cold, it may idle unevenly. Do not increase the idle speed setting to compensate. ON NO
ACCOUNT SHOULD THE MAXIMUM SPEED STOP BE CHANGED.
TO
CLEAN FUEL LIFT PUMP Turn
off
fuel supply valve. Holding receptacle under pump to prevent spilling of fuel
into bilge of boat, loosen the center bolt and remove cover and pulsator. Clean pump thoroughly and wash cover
and pulsator in fuel oil. Replace parts carefully.
It
will be necessary to bleed fuel system. Check for possible leaks
after starting engine.
TO CHANGE SECONDARY FUEL FILTERS (note
-
making certain that the filter element(s) you will
use
is an
EXACT replacement for the element you will remove, otherwise, air leaks into the fuel system may result. Unscrew
the securing bolts on top of filter housing and remove filter bowls and elements. Discard elements and upper and
lower sealing rings. Wash out the bowls and clean fuel oil but do not use a cloth for remaining lint may clog the
fuel system. Carefully fit new sealing rings to the filter heads and bowls, assemble to the filter heads and replace
and tighten securing bolts. It will now be necessary to bleed the fuel system of air as described in separate section.
After running engine for a short time, check filters for possible fuel leaks.
Winterizing
In preparation for freezing temperatures, anti
-
freeze should be provided in the fresh water system
of
your engine.
Due to the high temperature of operation a high boiling point anti
-
freeze is demanded. Do not attempt to use alcohol
or other non
-
permanent types and do not use any liquids containing “sealants”. Zerex (produced by DuPont) is
highly recommended. Consult the specification freeze to bring within the limits of expected temperatures. Inboard
type heat exchangers and oil coolers must be drained of raw (sea) water when exposed to freezing temperatures.
Drain plugs
will
be found on bottom of heat exchanger and oil coolers and should be removed until all water has
been drained. Raw water pump may be drained by loosening screws holding rear cover in position. Please refer
to
“cooling system” section of
this
manual for alternate winterizing method.
If
boat is to remain in water while draining engine, of course, the intake water seacock must be closed prior
to
draining.
Do
not neglect to open sea
-
cock prior to starting engine.
NOTE: TO DRAIN FRESH WATER, REMOVE WATER FILLER CAP
FROM
TOP OF EXPANSION TANK ON
FRONT OF ENGINE. DRAIN BLOCK BY OPENING
PETCOCK ON PORT (LEFT) SIDE OF ENGINE IN
CENTER, LOWER SECTION. REMOVE PLUG
ON
UNDERSIDE OF HEAT EXCHANGER (THE ONE
NEARESTCENTER OF EXCHANGER) TO DRAIN WATER FROM EXCHANGER, EXPANSION TANK AND
EXHAUST MAINFOLD. REPLACE FILL CAP ON TANK AFTER CLOSING
PETLOCK AND INSTALLING
PLUG IN HEAT EXCHANGER.
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