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GB/T 34600-2017

Chinese Standard: 'GB/T 34600-2017'
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Detail Information of GB/T 34600-2017; GB/T34600-2017
Description (Translated English): The technical specification for remanufacturing of automotive components - Spark and compression ignition engines
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: T10
Classification of International Standard: 43.060
Word Count Estimation: 10,163
Date of Issue: 2017-10-14
Date of Implementation: 2018-05-01
Drafting Organization: China National Automotive Technology Research Center, China National Heavy Duty Truck Group Jinan Qiangqiang Power Co., Ltd., Chery Automobile Co., Ltd., Weichai Power Co., Ltd., Yuchai Remanufacturing Industry (Suzhou) Co., Ltd.
Administrative Organization: National Automotive Standardization Technical Committee (SAC/TC 114)
Proposing organization: Ministry of Industry and Information Technology
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of PRC; China National Standardization Administration

GB/T 34600-2017
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.060
T 10
The technical specification for
remanufacturing of automotive components –
Spark and compression ignition engines
汽车零部件再制造产品技术规范
点燃式, 压燃式发动机
ISSUED ON. OCTOBER 14, 2017
IMPLEMENTED ON. MAY 1, 2018
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People’s Republic of China;
Standardization Administration of the People’s Republic of
China.
Table of Contents
Foreword ... 3 
1 Scope ... 4 
2 Normative references ... 4 
3 Terms and definitions ... 5 
4 Disassembly, classification, and cleaning ... 5 
5 Testing and repair ... 6 
6 Assembly ... 10 
7 Remanufactured engine performance requirements ... 10 
8 Inspection requirements ... 11 
9 Packaging acceptance ... 12 
References ... 13 
The technical specification for
remanufacturing of automotive components –
Spark and compression ignition engines
1 Scope
This Standard specifies the terms and definitions, general technical
requirements of disassembly, classification and cleaning, testing and repair of
major parts, assembly, performance requirements, inspection requirements,
and packaging acceptance for the remanufacturing of spark and compression
ignition engines.
This Standard is applicable to the remanufacturing of automotive spark and
compression ignition engines. The remanufacturing of other engines can be
implemented by reference.
2 Normative references
The following documents are essential to the application of this document. For
dated references, only the editions with the dates indicated are applicable to
this document. For undated references, only the latest editions (including all the
amendments) are applicable to this document.
GB/T 6809.1 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 1. Structure and external covers
GB/T 6809.2 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 2. Valves, camshaft drives and actuating
mechanisms
GB/T 6809.3 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 3. Main running gear
GB/T 6809.4 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 4. Pressure charging and air/exhaust gas
ducting systems
GB/T 6809.5 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 5. Cooling systems
GB/T 6809.6 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 6. Lubricating systems
GB/T 6809.7 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 7. Governing systems
GB/T 6809.8 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 8. Starting systems
GB/T 6809.9 Reciprocating internal combustion engines -- Vocabulary of
components and systems -- Part 9. Control and monitoring systems
GB/T 17692 Measurement methods of net power for automotive engines
GB/T 18297 Performance test code for road vehicle engines
GB/T 26989 Automobile recovery -- Terminology
GB/T 28675 Remanufacturing of automotive components -- Disassembly
GB/T 28676 Remanufacturing of automotive components -- Classification
GB/T 28677 Remanufacturing of automotive components -- Cleaning
GB/T 28678 Remanufacturing of automotive components -- Pre-delivery
inspection
GB/T 28679 Remanufacturing of automotive components -- Assembly
3 Terms and definitions
The terms and definitions defined by GB/T 6809.1 to GB/T 6809.9, and GB/T
26989 are applicable to this document.
4 Disassembly, classification, and cleaning
4.1 Disassembly
4.1.1 The engine shall be completely disassembled to facilitate further
classified disassembly and remanufacturing.
4.1.2 The disassembly of the engine shall comply with the provisions of GB/T
28675.
4.1.3 At the time of disassembly, it is initially determined whether the main
parts are suitable for remanufacturing.
5.4.5 The repaired crankshaft shall be tested for dynamic balance.
5.5 Camshaft assembly
5.5.1 TEST the damage of the camshaft. MEASURE the coaxiality of each
journal, size and abrasion loss of the journal. CHECK the cam profile.
5.5.2 TEST the camshaft follower surface.
5.6 Connecting rod
5.6.1 TEST the big-end bearing seat for damage. MEASURE the cylindricity.
5.6.2 TEST the connecting rod binding surface. The oil duct is deburred and
thoroughly cleaned.
5.6.3 TEST the degree of parallelism and torsion resistance of the connecting
rod. When the degree of parallelism and torsion resistance are out of tolerance
and not greater than 2 times the tolerance, it is allowed to restore the original
accuracy by means of straightening. Flaw detection shall be carried out after
straightening.
5.6.4 ENSURE that the dimensions of the bushing seat are within the
specified limits. Small-end bushing is repaired or new parts are used so that the
clearance between the piston pin and the bushing satisfies the corresponding
performance requirements of the original product.
5.6.5 Connecting rods are grouped by weight as required, except for powder
metallurgy connecting rods.
5.7 Oil pump
5.7.1 TEST the internal damage to the oil pump. MEASURE the clearance
between the rotor and the pump body. DISASSEMBLE and CLEAN the safety
valve. All parts with indeterminate performance shall be repaired or replaced
with new ones.
5.7.2 TEST the performance of the oil pump.
5.8 Water pump
5.8.1 TEST the performance of the water pump. REMOVE internal scale and
rust.
5.8.2 TEST the impeller of the water pump.
5.8.3 TEST the airtightness of the water pump.
5.8.4 TEST other parts of the water pump, such as water pump shaft.
6 Assembly
6.1 Before assembly, CLEAN the cylinder block, cylinder head, crankshaft,
camshaft, connecting rod and other related parts, so as to ensure that the
assembly components meet the product cleanliness requirements.
6.2 The remanufactured engine assembly shall comply with the provisions of
GB/T 28679.
6.3 PAY attention to the assembly sequence of the fasteners when
assembling. The tightening torque meets the remanufacturer’s design
requirements. When assembling, TEST the fit clearance of the remanufactured
engine, projection height at the top dead center of the piston, valve timing, fuel
supply advance angle, valve clearance, crankshaft axial clearance, selection of
connecting rod grouping, etc.
6.4 In accordance with relevant national regulations, the remanufactured
engine number shall be reprinted on the cylinder block, and the remanufactured
product mark is indicated on the engine.
7 Remanufactured engine performance requirements
7.1 The airtightness is in good condition, with no water leakage, oil leakage,
or air leakage.
7.2 The starting performance shall be tested in accordance with the GB/T
18297, and in compliance with the requirements for the prototype product.
7.3 The fluctuation rate at low idle speed shall ......
Related standard:   GB/T 34593-2017  GB/T 37154-2018
   
 
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