| 摘要 |
PROBLEM TO BE SOLVED: To provide an engine capable of enhancing efficiency in installation and removal work of a part. SOLUTION: A magnetic substance 82 is cast in a cylinder block thick wall 81, and a part fixture 84 dropped in installation and removal of the part 83 is attracted to an outward surface 81a of the cylinder block thick wall 81 by attraction force of the magnetic substance 82, and iron powder included in engine oil is attracted to an inward wall 81b of the cylinder block thick wall 81. The part 83 means a throttle body 10, and the part fixture 84 means a stud bolt 27, a nut 27a and a headed bolt 28, and the cylinder block thick wall 81 means a crankcase ceiling wall 23. COPYRIGHT: (C)2009,JPO&INPIT
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