Document 5kowXEOQqbBdG1B7rnBVq66B5

FLYWHEEL AND TRANSMISSION HOUSING ALIGNMENT The engine and transmission must have a com mon axis. The following checks must be made to locate possible misalignment. Clean all surfaces thoroughly before taking readings or checking parts. IMPORTANT When taking the following readings, rotate engine by hand -- do not crank engine with starter. En gine may be rotated by pulley nut at front end of crankshaft, or from flywheel mounting bolts, or starter ring gear on flywheel. Release compres sion on diesel engines. NOTE Before dial indicating engine flywheel or fly wheel housing, make sure engine crankshaft does not have excessive end-play. If it does, ac curate readings can not be obtained. Place dial indicator finger against flywheel. Force crank shaft back and forth with pry bar. If end-play movement exceeds maximum, it will have to be corrected. WORN HOUSINGS: See Fig. 28. Inspect for worn or fretted pilot on both the transmission clutch housing and the engine flywheel housing. The V% " pilot lip of trans mission clutch housing can wear into the flywheel housing either by transmission loosening up or after high mileage just from road and engine vi bration. Any appreciable amount of wear on either part will cause misalignment and the part should be replaced. The wear will generally be found be tween the 3:00 o'clock and 8:00 o'clock positions. See Fig. 29. 30S3-4S FIG. 30 Dial indicating the flywheel housing pilot. See Fig. 31. The total runout will be the dif ference between the highest plus and minus read ings. SAE maximum total runout for fly wheel housing pilot is .008 with No. 1, No. 2 and No. 3 SAE housings. 0 FIG. 28 Check engine and transmission for wear areas. ENGINE FLYWHEEL HOUSING PILOT: See Fig. 30. Dial indicate the pilot or bore of en gine flywheel housing. Secure dial indicator to en gine flywheel with gauge finger against housing pi lot. Rotate flywheel by hand and, with chalk or soap stone, mark high and low points of indicator as it is being rotated. Plus .012 and minus .OOH gives housing a total runout of .020. 16