| 摘要 |
PROBLEM TO BE SOLVED: To prevent cooling water from being sucked in an exhaust pipe to the utmost by providing a water reservoir shielded from a muffler formed in a space between the exhaust pipe and an oil pan. SOLUTION: A part of cooling water cooling an engine is made to flow in a water reservoir 67 through a cooling water lowering passage 96 of a guide exhaust 38, a cooling water lowering passage 97 of an oil pan 61 and a passage 98 of an exhaust pipe 63, and is discharged from a cooling water discharge port of a lower casing. An exhaust pipe 63 can be cooled by water of this water reservoir 67. Water of the water reservoir 67 is checked in falling along the outside surface of the exhaust pipe 63 by a shielding plate 66, and the water can be prevented from flowing inside the exhaust pipe 63 by entering all the way from the lower end of the exhaust pipe 63. |
