Noise

Actually most of the noise in the Milodon setup, which is very well made as opposed to the cheaper floating idler setups, is because of the straight-cut gears- not poor quality. Same reason an M-22 Munchie whines, and the M-20 and 21 don't. Most tractor and truck engines have gear driven cams, but the gears are almost always helical cut instead of straight. The floating kind even comes in a loose-tolerance "noisy" version for the pimple-faces in the Camaros who think it makes their Chebby sound fast LOL. The upper gears of the Milodon have set, snug tolerances, and you set the lower two with a piece of newsprint, and clamp it down- nice 'n snug. Does make some noise, but it's a tight, together sound, not the crank's falling out sound of the dual idlers