Isuzu 25 User Manual

8
9
Fuel and Oil Specifications
Fuel
Important
• Itasadvisabletotafuel/waterseparatorinthefuelsupplysystem.Water
in the fuel can damage the injection system. However if the engine is being
ttedintoanexistingboat(re-installation),itiscompulsorytotafuel/
water separator.
• Ifafuelsupplyshutoffvalveistteddonotusetapertap,onlyuseaball
valve tap. The valve type are more reliable and less likely to let air into the
fuel system.
• Do not use kerosene, which is very low in cetane rating, and adversely
affects the engine.
• Be careful not to let the fuel tank become empty, or air can enter the fuel
system, necessitating bleeding before next engine start.
Fuel selection
The following criteria is required for the diesel fuel
1. Must be free from minute dust particles
2. Must have adequate viscosity
3. Must have high cetane value
4. Musthavehighuidityatlowtemperature
5. Must have low sulphur content
6. Must have little residual carbon
Diesel fuels
Applicable standard Recommendation
JIS (Japanese Industrial Standard)
DIN (Deutsche Industrie Normen)
SAE (Society of Automotive Engineers)
Based on SAE-J-313C
BS (British Standard)
Based on BS/2869-1970
If fuel other than the specified one is used, engine function will be lowered.
Fuel Requirements
NOTICE: The fuel injection pump, injector or other parts of the fuel system and
engine can be damaged if you use any fuel or fuel additive other than those
specifically recommended by Isuzu.
Such damage is not Isuzu’s responsibility and is not covered by the warranty. To
help avoid fuel system or engine damage, please read the following:
• Some service stations mix used engine oil with diesel fuel. Some manufacturers
NO. 2
DIN 51601
NO.2-D
Class A-1
attempts.
The oil pressure gauge on the deluxe engine control panel will read high on start
up and whilst the engine is cold. This is normal it will then decrease.
The temperature light on the basic and intermediate engine control panel will not
light up during the start up procedure, this is normal
STOPPING
Isuzu 35/42/55/70
Every propulsion engine is fitted with a stop solenoid which is energised to stop.
To stop engine simply press stop push button, hold in until engine stops, then
turn key from ‘1’ to ‘O’ position.
Isuzu 25
The engine is fitted with a stop solenoid, which is energised to run. To stop
engine simply, then turn key from ‘1’ to ‘O’ position.
When leaving the boat for an extended period, turn off battery isolator
Do not turn the key to the off position when the engine is running.
This will not allow the alternator to charge, and cause damage to the
alternator.
EMERGENCY STOPPING
If for some reason the stop does not work then the engine can be stopped
by moving the stop lever over by hand. See photograph.
Emergency stop lever –
push towards back of the
engine until engine stops,
turn off at key afterwards
(Exc Isuzu 25)
Emergency stop lever –
push towards back of the
engine until engine stops,
turn off at key afterwards
(Exc Isuzu 25)

Isuzu 25 Specifications

General

Brand	Isuzu
Model	25
Category	Engine
Language	English