Great Wall GW491QE, Руководство по обслуживанию

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Based on the model GW491Q (4Y) carburetor petrol engine, the GW491QE petrol
engine produced by our company is of one petrol engine able to electrically inject fuel
at multiple points, and is developed from electrical control components made by Delphi
company, USA, and Shanghai United Electronic Company. This model shows a
predominant improvement in aspects of power and economical efficiency, and is in
compliance with GB18352.2-2001 “Limits and measurement methods for exhausts
of pollutants from light vehicles (II) ”(equivalent to European Class-II standard), and
conforms to stipulations at phase III for GB18352.3-2005 “Limits and measurement
methods for exhausts of pollutants from light vehicles (at phase III &IV in China)”
(equivalent to European Class-III standard).
To meet the needs from numerous maintenance /technical / management
personnel, we prepare this “GW491QE Petrol Engine Service Manual” based on the
latest technical materials.
All contents, specifications, and data stated in this manual are the latest information
before printing and this service manual will be subject to a supplemental, revision, and
completion from time to time.
This manual may be used for the reference by mechanics, drivers, and technical /
management personnel as the manual is complete in contents, definite in requirements,
and simple in maintenance.
Constrained by the level of the writer, it’s unavoidable to have some defects in
this manual, and your comments and suggestions are highly appreciated.
Preface
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