Alfa Romeo 33 owners manual page 165

text version of content this owner's manual page from owners manual to the vehicle Alfa Romeo 33, year of production 1983 - 1995:

GEARBOX roller bearings pre-loading: various parts do not rotate. How to determine pre-load of pinion &aft taper roller 6. Fit the shim selected as per bearings S = 9.60- G - 0.10 above computation; now fit the bearing inner race, all the parts CAUTION: whereas 0.10 is a play-correctingmaking up the 5th speed driven gear factor for taper roller bearingpre- set and lastly the nut. Use only metric system in order to loading. 7. Tighten the nut to specified avoid confusion in computations. torque. After having fitted all various parts as described in paragraph “Reassembly- 0: Tightening torque Pinion shaft gear train locking Pinion Shaft: Gears, item no.5”, measure pinion end play by carefully nut 220 + 245 N-m following the procedure described hereafter: (22.5 + 25kg- m 162.70,+ 180.77ft.lb) 1. Fit bracket A.2.0242 to gearbox 8. Coat all gears of primary and casing with the interposed spacers pinion shafts with specifiedgearbox- A-2.0234 and then a centesimal dial gauge to the bracket. differential type oil(AGIP FI Rotra --F-J-- MP SAE8OW90 or IP Pontiax HD 1 Pinion 3 Rear bearing 8OW90). 2 Front bearing Turn pinion shaft a few times in both rotating directions to allow bearings Select the shim with thickness to settle. nearest to the value determined as 9. Fit coupling tool A.2.0274, the per above instructions keeping in 1 dm rad. sheaveC.!%O124, andThe mind, however, that max. allowed C.2.0037 weight to the pinion shaft tolerance is* 0.02 mm and that nut. thicknesses available as spare parts have a 0.05 mm variation step. A.2.0274 - Example: Standard shim thickness = 9.60 G = 0.37 Play -correcting factor = 0.m S =9.60-G-0.10 = 9.60- 0.37- 0.10 Properly tighten the screws securing bracket A.2.0242 to the gearbox 9.60 (I) casing in order to avoid damaging - 0.37 casing threads. 9.23 (2) 9.23 2. Turn pinion@ a few times in -0.10 both directions to allow bearings@ 9.13 and @ to settle. Push pinion by Computed shim hand in one direction and reset the thickness S = 9.13 C-2.0037 dial gauge. Tolerance = 0.02 3. Move pinion in the opposite direction andtake reading of “G ” Dimensional variation play on dial gauge. steps of available spare 6 shims = 0.05 In case of subsequent end-play Selected shim readings, it isnecessan/ to rotate thickness S = 9.15 mm 10. Check that weight descends again the pinion in both directions to normally without stopping and with- allow bearings to settle. 5. Loosen and remove the nut as out pulling the disc too fast. well as the hub, rhe bushing, the Check that in such condition rolling bearing inner race, and the standard 4. Determine as follows the rear torque is as specified. shim making sure that the train’s shim “S” thickness for pinion taper May 1983 13-18

owners manual Alfa Romeo 33

owners manual Alfa Romeo 33 - year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995 - Alfa Romeo 33 owners manual EN