. Automotive industries . The pistons are of the three-ring type, all three of the ringsbeing above the piston pin. Theyare grey iron castings 3% in. inlength. The rings are 3/16 width. The piston pin is1 3/32 in. in diameter, of seam-less steel tubing, locked in thepiston pin boss by a special setscrew. This set screw is lockedin such a way that there is no possibility of the pistonpin becoming loose and coming in contact with the cylin-der bore. The piston pin bearing in the connecting rodis bronze bushed and is IV2 in- in length. The connecting rods are I-section drop-forgings, 10y2 i
. Automotive industries . The pistons are of the three-ring type, all three of the ringsbeing above the piston pin. Theyare grey iron castings 3% in. inlength. The rings are 3/16 width. The piston pin is1 3/32 in. in diameter, of seam-less steel tubing, locked in thepiston pin boss by a special setscrew. This set screw is lockedin such a way that there is no possibility of the pistonpin becoming loose and coming in contact with the cylin-der bore. The piston pin bearing in the connecting rodis bronze bushed and is IV2 in- in length. The connecting rods are I-section drop-forgings, 10y2 , center to center. The lower rod bearings are 1% diameter by 2 3/16 in. in length. As a means of secur-ing compactness, the center line of the big end connectingrod bearing is offset from the center line of the rod, thuscompensating for the increased length due to water jacketspace between the cylinders. The engine is 35 3/16 in. inlength from the end of the front support to the rear faceof the bell Right and left sides of Highway engine, show-ing the pump drive, manifolds, standardS. A. E. starting motor mounting and largediameter water outlet The crankshaft is carried on three main bearings whichare supported in the upper half of the crankcase. Thecrankshaft bearing dimensions are (front to rear) :2 3/16 in. diameter by 3 in. length; 2 7/32 in. by 2% in.,and 214 in. by 3 in. This is an exceptionally large shaftdiameter for the size of the engine and the shaft has suffi-cient rigidity to practically eliminate noticeable periodicvibration. The end thrust on the crankshaft is taken byflanges on the center main bearings are bronzebacked with babbitt lining, thewhite metal being doweled intothe bronze. There is an oilthrower ring on the rear mainbearing, working in a recess inthe bronze bushing and an aper-ture in the crankcase, allowingthe oil to drain back to the pan. _ The timing gears are of thehelical type, with % in. camshaft is an
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
