Yanmar 3JH4E, Service Manual

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1. General
46
1.6 Exhaust Gas Emission
Regulation in U.S.A. only
Engines below 37kW are regulated by Off-road
Compression Ignition engines regulations of the
EPA and ARB (California Air Resources Board) in
USA.
Engines more than 37kW will be regulated by EPA
Emission Regulations for Marine CI Engines in
USA.
1.6.1 Engines under 37kw: 3JH4E
Off-road Compression Ignition engines regulations
of the EPA and ARB are applied to engines below
37kW and explained in the following.
(1) Engine identification
With the regulations on exhaust gas emission
worldwide, it has become necessary to identify
engines in a manner to determine which
regulations they comply with, hence.
a) Emission control label
(Note) Emission Control is accomplished
through Engine Modification (EM-
Design).
• The tamper resistance device is installed with
EPA/ARB certified 3JH4E series engines to
prevent illegal change of fuel injection volume
and high idling speed.
(Fuel injection volume: cap type, High idling
speed: cap type.)
• Engine family name as assigned by EPA/ARB
identifying engine family group.
4YDXM1.64D3N and this identifies
YYDXM1.64D3N and this identifies
IMPORTANT ENGINE INFORMATION
ENGINE MODEL : 3JH4E EMISSION CONTROL SYSTEM : EM
THIS ENGINE CONFORMS TO 2006 M.Y.CALIFORNIA AND U.S.EPA
REFER TO OWNER'S MANUAL FOR MAINTENANCE SPECIFICATIONS
AND ADJUSTMENTS.
FUEL RATE : 33.8 MM
3
/STROKE @29.4kW / 3000RPM
ENGINE FAMILY : 6YDXM1.64D3N DISPLACEMENT : 1.642 LITERS
REGULATIONS FOR OFF-ROAD C.I.ENGINES.
THIS ENGINE IS CERTIFIED TO OPERATE ON "TYPE2-D" FUEL.
YANMAR CO.,LTD.
EPA and ARB label
4 YDX M 1.64 D 3 N
Method of air aspiration
Number of cylinders
Combustion chamber design
Displacement (liter)
Marine engine
Yanmar
*2004 model year
Model year
4*: 2004
5 : 2005
6 : 2006
7 : 2007
8 : 2008
9 : 2009