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Summary of Contents for HAIMA HM484Q
- Page 1 HM484Q Engine Service Manual...
- Page 2 All contents of this manual are the latest information at the time of publication, and the applied data are in line with the technical standards of HM484Q series. FAW HAIMA Power Co., Ltd. reserves the right to change the engine technique features and contents relevant in this manual.
- Page 3 Table of Contents How to Use This Manual ......................1 Technique parameters......................2 Technique parameters of complete apparatus .............2 Technical specification of service .................3 Technical specification of service .................6 Tightening torque ......................8 Special tools ........................11 Inspection and maintenance on CBU ................13 Check of compression pressure ................
- Page 4 Table of Contents Disassembly instructions of timing sprocket ............30 Assembly instructions of tensioner ..............31 Assembly instructions of tensioner arm ............. 31 Assembly instructions of timing sprocket ............32 Assembly instructions of cylinder head cover ............ 32 Assembly instructions of crankshaft pulley ............33 Assembly instructions of water pump pulley ............
- Page 5 Table of Contents Check/repair of cylinder head ..................53 Check of valve and valve guide ................. 54 Replacement of valve guide ..................55 Disassembly of valve guide ................55 Assembly of valve guide ..................55 Check/repair of valve seat ..................56 Check of valve spring ....................
- Page 6 Table of Contents...
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Page 7: How To Use This Manual
How to Use This Manual How to Use This Manual Subject scope This manual includes procedures for maintenance operations, specifically divided into the following five basic operations. ⅠRemoval/installation ⅡBreak down/installation ⅢReset ⅣCheck ⅤAdjustment Simple operations may be completed by observing the engine outlook, e.g. Removal/installation of peripheral parts, parts cleaning and visual observation etc., Repair steps 1. -
Page 8: Technique Parameters
Technique parameters Technique parameters Technique parameters of complete apparatus Items Parameters Remark Model HM484Q HM484Q-B Number of cylinders and Inline 4-cylinder arrangement Combustion chamber Pentroof As per cylinder Ignition order 1—3—4—2 number Looking forward from behind (the Direction of rotation... - Page 9 Technique parameters Technical specification of service Items Parameters Cylinder cover ～ ～ 124.45 124.55{4.8996 Standard 4.9035} Height (mm{in}) Maximum grinding 0.2{0.0078} allowance Deformation at joint face of Max. 0.03{0.0011} cylinder gasket (mm{in}) Max. 0.05{0.0019} Deformation at joint face of Maximum grinding manifold (mm{in}) 0.20{0.0078} allowance...
- Page 10 Technique parameters Technical specification of service Items Parameters Valve spring 203 ～ 225 {20.71 ～ 22.95, Intake H: 38.8mm {1.528in} Height H pressure of 45.62～50.56} valve spring (N{kgf, 203 ～ 225 {20.71 ～ 22.95, lbf}) Exhaust H: 38.8mm {1.528in} 45.62～50.56} Intake Max.