EXHAUST STRUCTURE AND SUCTION STRUCTURE OF INTERNAL COMBUSTION ENGINE

摘要

PROBLEM TO BE SOLVED: To provide an exhaust structure and a suction structure of internal combustion engine capable of enhancing a workability when a manifold is attached/detached to a cylinder head of the internal combustion engine. SOLUTION: In the exhaust structure of engine 11, a flange of an exhaust manifold 13 is connected to an exhaust port of a cylinder head 12 of the engine 11 by a thread-engagement means comprising four bolts 15 and nuts 16 and an engagement means comprising one catch clip 19. An exhaust port and an exhaust manifold 13 are communicated. The catch clip 19 is disposed at a position opposed to a space between two exhaust pipes 18 closely provided of the exhaust manifold 13. An attachment/detachment workability of the exhaust manifold 13 to the cylinder head 12 is enhanced by a portion that the thread-engagement means is changed to the engagement means comprising the catch clip 19.