Apparatus for mounting a motorcycle engine to a dune buggy

Claim 2

In a vehicle having a motorcycle engine and transmission, the engine being of a type having upper and lower engine mounting lugs and output shaft means located one one side of the engine and facing rearwardly, the vehicle having a transaxle for driving rear wheels which is mounted with a bell housing facing forwardly, the bell housing encircling input shaft means for driving the transaxle, the improvement comprising in combination: an adapter plate mounted between the bell housing and the engine, the adapter plate having an aperture positioned in alignment with the output shaft means and the input shaft means, the plate further having a plurality of inner holes encircling the aperture and a plurality of outer holes positioned outward from the inner holes; a plurality of engine bolts extending through the inner holes and secured to the engine in holes provided around the output shaft means, the heads of the engine bolts being located on the rearward side of the plate to secure the plate to the engine; a plurality of bell housing bolts extending through the outer holes and secured to the bell housing in holes provided in the bell housing to secure the plate to the bell housing, the plate and bell housing enclosing the heads of the engine bolts when the plate is secured to the bell housing; upper and lower spaced-apart plate lugs located on the forward side of the plate and bolted to the engine mounting lugs; said upper lugs are located above and to one side of the axis of the aperture, and both lower lugs are located to said one side of and below the axis of the aperture; and a shaft extending through the aperture interconnecting the output shaft means with the input shaft means.

Claim 3

A vehicle, comprising in combination: a frame; a motorcycle engine, the engine having upper and lower engine mounting lugs and output shaft means located on one side of the engine and facing rearwardly; a transaxle mounted to the frame for driving rear wheels of the vehicle and having a bell housing facing forwardly, the bell housing encircling input shaft means for driving the transaxle; an adapter plate mounted between the bell housing and the engine, the adapter plate having an aperture positioned for alignment with the output shaft means and the input shaft means, the plate further having a plurality of inner holes concentrically encircling the aperture and a plurality of outer holes positioned outward from the inner holes; a plurality of engine bolts extending through the inner holes and secured to the engine in holes provided around the output shaft means, the heads of the engine bolts being located on the rearward side of the plate to secure the plate to the engine; a plurality of bell housing bolts extending through the outer holes and secured to the bell housing in holes provided in the bell housing to secure the plate to the bell housing, the plate and bell housing enclosing the heads of the engine both when the plate is secured to the bell housing; a pair of upper plate lugs on the forward side of the plate adjacent the upper edge of the plate, both plate lugs located above and to one side of the axis of the aperture and connected to the upper engine mounting lugs; a pair of lower plate lugs located on the forward side of the plate adjacent the bottom edge of the plate, both lower plate lugs located to said one side of and below the axis of the aperture and connected to the lower engine mounting lugs; each of the upper and lower plate and engine mounting lugs comprising a flat member having a hole therethrough through which a bolt extends, coupling the plate lugs to the engine mounting lugs, each upper and lower plate lug being welded to the forward side of the plate perpendicular to the forward side of the plate; a shaft extending through the aperture interconnecting the output shaft means with the input shaft means; and a support plate mounted to the vehicle frame, extending downwardly and bolted to the adapter plate to provide support.

Claim 4

A vehicle, comprising in combination: a frame; a motorcycle engine, the engine having upper and lower engine mounting lugs and output shaft means located on one side of the engine and facing rearwardly; a transaxle mounted to the frame for driving rear wheels of the vehicle and having a bell housing facing forwardly, the bell housing encircling input shaft means for driving the transaxle; an adapter plate mounted between the bell housing and the engine, the adapter plate having an aperture positioned for alignment with the output shaft means and the input shaft means, the plate further having a plurality of inner holes concentrically encircling the aperture and a plurality of outer holes positioned outward from the inner holes; a plurality of engine bolts extending through the inner holes and secured to the engine in holes provided around the output shaft means, the heads of the engine bolts being located on the rearward side of the plate to secure the plate to the engine; a plurality of bell housing bolts extending through the outer holes and secured to the bell housing in holes provided in the bell housing to secure the plate to the bell housing, the plate and bell housing enclosing the heads of the engine both when the plate is secured to the bell housing; a pair of upper plate lugs on the forward side of the plate adjacent the upper edge of the plate, both plate lugs located above and to one side of the axis of the aperture and connected to the upper engine mounting lugs; a pair of lower plate lugs located on the forward side of the plate adjacent the bottom edge of the plate, both lower plate lugs located to said one side of and below the axis of the aperture and connected to the lower engine mounting lugs; each of the upper and lower plate and engine mounting lugs comprising a flat member having a hole therethrough through which a bolt extends, coupling the plate lugs to the engine mounting lugs, each upper and lower plate lug being welded to the forward side of the plate perpendicular to the forward side of the plate; a shaft extending through the aperture interconnecting the output shaft means with the input shaft means; and a support plate mounted to the vehicle frame, extending downwardly and bolted to the adapter plate to provide support.