| 摘要 |
PROBLEM TO BE SOLVED: To simplify the fitting of a heat insulator by forming a warm-up chamber to heat the sucked air into an air cleaner on an exhaust manifold when the heat insulator is fitted to the exhaust manifold. SOLUTION: A lid plate 6 is fitted to a recessed part 4 provided on an exhaust manifold to form the inside of the recessed part 4 into a warm-up chamber to heat the outside air to be sucked into an air cleaner, and in constituting a heat insulator 7 by two metallic plates 7a, 7b, a part of the heat insulator between the lid plate and a part around the recessed part is held by one metallic plate, and the part is held by the lid plate and a part around the recessed part. |
