1942 - 1947 Chevrolet Shop Manual



	*7-7*

	2. Blow out the bearings with compressed air. CAUTION—Do not allow the bearings to spin, but turn them slowly by hand. Spinning bearings will damage the races and balls. 3. After making sure the hearings arc clean, lubricate with light engine oil and check them for wear or roughness. Roughness may be determined by slowly turning the outer race by hand Transmission Case Wash the transmission case inside and outside with gasoline or cleaning solvent and inspect for cracks. Inspect the front face which fits against clutch housing for burrs and if any are present, dress them off with a fine cut mill file. Gears 1. Inspect all gears and, if necessary, replace any that are worn or damaged. 2. Check the first and reverse sliding gear to make sure it slides freely on the clutch sleeve. 3. Check the clutch sleeve to see that it slides freely on the mainshaft. 4. Check the synchronizing cones for wear or for being loose in the clutch sleeve. If the cones are damaged in any way, it will be necessary to replace the clutch sleeve assembly and both synchronizing rings. Synchronizer Rings 1. Inspect the synchronizer rings for smoothness. 2. Place the synchronizer rings in the synchronizing cones and check with the thumbs to see that the rings do not rock. Excessive rocking indicates a poor fit between the ring and cone, which will not permit proper synchronizing of the gears during shifting. Synchronizer Energizing Springs 1. It will be noticed upon examining these springs that one of the ends is slightly offset. Each spring must be assembled in its groove in the clutch gear and the second speed gear with the offset or locking end between the third and fourth teeth of either of the two banks of teeth on these gears, thus keeping the spring from turning in its groove, Fig. 10. The gap in the spring must not be in line with the opening between either bank of teeth on either gear mentioned. 2. Under normal operation it should never be necessary to replace the energizing springs; however, should an energizing spring be removed for any reason, a new spring should be installed.
		Fig. 10—Correct Position of Energizing Spring The spring may be removed by slipping a thin blade under the spring and raising it over the clutch teeth on the gear and slipping it off over the teeth. CAUTION—In replacing either energizing spring, be very careful not to distort the spring when expanding it over the clutch teeth. Bushings 1. The bushings used in the countergear and the idler gear are pressed into the gears, then peened into holes in the bores, to lock them in place, and are accurately bored with special diamond boring tools. This insures the positive alignment of the bushings and their shafts as well as the proper meshing of the gears. Because of the high degree of accuracy to which these parts are machined the bushings are not serviced separately, but as a part of the gear assembly.

		WRONG ANGLE
		Fig. 11—Reverse Idler Gear, Shaft and Lock Pin