Patent ID: 7114474
Filing Date: 2006-10-03
Classification: F02B

Abstract:
1. In a V-engine having an arrangement, in which cylinder heads of first and second banks set at an angle to each other so as to form the letter V are provided in a connected row arrangement on a crankcase that rotatably supports a crankshaft, with camshafts being rotatably supported on corresponding ones of the two banks, first and second chain tensioners are provided so as to be in a sliding contact with a corresponding one of cam chains that transmit power from the crankshaft to corresponding ones of the camshafts, and the cylinder heads of the two banks include first and second tensioner lifters for abutting on a corresponding one of the first and second chain tensioners from a side opposite to the cam chains for providing tension to each of the cam chains, a structure for mounting a tensioner lifter, comprising: said first tensioner lifter of the two tensioner lifters being disposed on the cylinder head of the first bank at a portion corresponding to an outside of the first and the second banks; said second tensioner lifter of the two tensioner lifters being disposed on the cylinder head of the second bank at a portion corresponding to the inside of the first bank and the second bank; and a distance between an upper end connection surface of the cylinder head of the first bank and the first tensioner lifter is set to be smaller than a distance between an upper end connection surface of the cylinder head of the second bank and the second tensioner lifter.