Inspection
INSPECTION
NOTE: Minor corrosion, nicks, or pitting can be smoothed with 400 grit emery and polished out with crocus cloth.
Bearings: Inspect roller bearings for wear, chips, cracks, flat-spots or brinnelling. Inspect sealed bearings, and verify bearings roll smoothly.
Gears: Inspect for worn, chipped, or cracked teeth. Inspect bearing surfaces for wear or flat-spots.
Mainshaft: Inspect for worn splines (1), snap ring grooves (2) and worn, chipped or cracked teeth (3). Inspect all bearing surfaces (4) for wear or flat-spots. Third and fourth gear (3) are serviced with mainshaft.
Countershaft: Inspect all gears for worn, chipped or cracked teeth (1). Inspect 3-4 synchronizer assembly for wear (2). Inspect center support bearing surfaces (3) for wear or flat-spots. The countershaft with 3-4 synchronizer is serviced as an assembly, except for bearings.
Synchronizer components: Inspect for worn, chipped, or cracked teeth and burned or flaking off friction material. Synchronizers are serviced as an assembly.
Input Shaft: Inspect input shaft bearing (1) and bearing surfaces for wear or flat-spots. Inspect input shaft splines (2) for wear. Inspect snap ring groove (3) for wear. Inspect fifth gear (4) for worn, chipped, or cracked teeth.
Shift forks: Inspect shift forks (1) for distortion. Inspect fork shoes (2) for wear and fit shoes in synchronizer sleeve to ensure parts fit and work smoothly.
Shift Rails: Inspect shift rails, bushings, and bearing for wear. Verify main shift rail (1) bearings (2) roll smoothly.
Clutch Release Bearing Support: Inspect clutch release bearing support (1) release bearing slide surface (2) for damage.
Housing/Tail housing: Inspect sealing and mating surfaces are free of burrs and nicks. Inspect alignment dowels are tight and in good condition. Inspect shift rail bushings for wear.