750-115 Driveshafts R2 2021-03-09.Pdf
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750-115 Driveshaft Table of Contents Updated 2021/03/09 1 Revision History ......................................................................................... 1 16.7 Section Assembly .......................................................................... 62 2 Giving Credit Where Credit Is Due ............................................................ 1 16.8 Lubrication .................................................................................... 62 3 Source of Information ................................................................................ 2 17 Installation ................................................................................................ 63 4 Preemptive Warning ................................................................................... 3 17.1 Alignment ...................................................................................... 63 5 Terminology ............................................................................................... 3 17.2 Balancing ....................................................................................... 66 6 Driveshaft Manufacturer ............................................................................ 6 17.3 Flexible Joint ................................................................................. 66 6.1 750-101............................................................................................ 6 18 Hardware .................................................................................................. 67 6.2 105-115............................................................................................ 6 18.1 Bolt manufacturer: ......................................................................... 67 7 750-101 Vehicle Identification ................................................................... 7 18.2 Bolt Installation Direction ............................................................. 68 7.1 Series & Model Variations .............................................................. 7 18.3 Dimensions .................................................................................... 71 7.2 Column or Floor Shift ..................................................................... 8 18.4 Threads – Front Shaft & Nut ......................................................... 74 8 Mysteries & Conclusions – 750 Series ....................................................... 8 18.5 Torque Values ............................................................................... 75 8.1 How to Explain Bearing / Bearing Spacer / Slinger / Spring Change? 21 19 Problem Resolution .................................................................................. 76 8.2 Changes were they Simultaneous, Coordinated, Haphazard? ....... 22 9 Other Evolutionary Changes .................................................................... 23 10 Berlina & T.I. Only .................................................................................. 33 10.1 According to Parts Manual ............................................................ 35 10.2 Identification by Measurements .................................................... 36 11 Sprint & Spider ......................................................................................... 37 11.1 According to Parts Manual ............................................................ 37 11.2 Identification by Measurements .................................................... 38 12 SS & SZ .................................................................................................... 40 12.1 According to Parts Manual ............................................................ 40 12.2 Identification by Measurements .................................................... 40 13 105 & 115 ................................................................................................. 41 13.1 According to Parts Manual ............................................................ 41 14 Removal ................................................................................................... 42 15 Evaluation................................................................................................. 42 15.1 BEFORE Disassembly .................................................................. 42 15.2 Pawl / Pawl Bush ........................................................................... 46 15.3 Threads – Front Shaft & Nut ......................................................... 47 15.4 Splines ........................................................................................... 47 15.5 Vibrations ...................................................................................... 48 15.6 Straightness & Balance Specifications .......................................... 50 16 Rebuild ..................................................................................................... 51 16.1 BEFORE Disassembly .................................................................. 51 16.2 Balancing ....................................................................................... 51 16.3 Pawl Bush ...................................................................................... 51 16.4 Ball Bearing ................................................................................... 52 16.5 Sliding Joint ................................................................................... 59 16.6 U-joint ........................................................................................... 59 Copyleft --- sharing with Alfa community Originally provided by Carl R. Davis Send correction to [email protected] 750-115 Driveshaft Preamble Page | 1 This document is the authors best effort, it certainly is incomplete and probably has errors. Caveats #1: Italy/Alfa Rule – there are always exceptions, intentional and otherwise. #2: 50+ years of maintenance creates changes, intentional and otherwise #3: Parts catalogs are great sources of information, but do contain errors. #4: Parts catalogs sometimes reuse illustration after part design changes. #5: Parts catalog artists did not always understand part assembly order as described by the engineer. #6: Bill Gillham may have summarized it correctly, “Alfa was consistently inconsistent”. 1 Revision History Version Date Section Change Entire document Some reformatting to match other documents by author Application Analysis / 750 & 101 - According to Parts Manual • Add part # of front assembly • Several number corrections Identification by Measurements …. In each of following • Section name change to make it easier to find. • Berlina • Major reorganization • Sprint & Spider • Added Hein Brand supplied measurements from NOS samples • SS & SZ R2 2021-03-09 • 105 Evaluation / Before Disassembly • Added photo: out of balance example • Added photo: marks on NOS Giulia Super rear section Rebuild / Ball Bearing / Bearing Removal & Reinstall / 105 Late New section & 115 Rebuild / Ball Bearing / Bearing Terminology New section, including “internal clearance” specification of “C3” Hardware / Bolt Installation Direction / 105 - 115 New section R1 2019-02-25 Changes were not recorded Original Not recorded 2 Giving Credit Where Credit Is Due • [email protected] | Home. Thierry Van Nuffelen Information and photographs Reed Cearley Tunnel Case expert (information and photographs of early Removable Driveshaft Forks and Gearbox Forks). Andy Amatruda Excellent research and experimentation on eliminating driveshaft vibrations Hein Brand Dimensions and images of 750 front units. Copyleft --- sharing with Alfa community Originally provided by Carl R. Davis Send correction to [email protected] 750-115 Driveshaft Preamble Page | 2 3 Source of Information Title Pub # Date Coverage Provider Giulietta Spare Parts Catalog 5622 1956/10 750 Author Giulietta Spare Parts Catalog, 608 1957/11 750 Thierry Van Nuffelen Supplement to Giulietta Spare Parts Catalog publication 608 N/A 1957 or 58 750 Thierry Van Nuffelen Giulietta Cars Shop Manual, 611 1957/12 750 Author Giulietta Cars Shop Manual, 637 1960/9 750 Author Enclosure to the Shop Manual Technical Characteristics 854 none 101 Author Giulietta 1300 Spare Parts Catalog 776 1961/11 750 &101 Author Giulia Sprint GT Spare Parts Catalog 993 1964/06 105 Author Giulietta Spare Parts Catalog 983 1964/11 750 & 101 Thierry Van Nuffelen Supplement to Giulietta Spare Parts Catalog publication 983 750 & 101 Thierry Van Nuffelen Giulietta Coachwork Spare Parts Catalog 990 1964/11 750 & 101 Thierry Van Nuffelen Supplement to Giulietta Coachwork Spare Parts Catalog publication 990 Thierry Van Nuffelen Giulia Sprint, Spider, SS Spare Parts Catalog 1016 1964/10 101-1600 Author Giulia t.i. Spare Parts Catalog 1101 1965/12 105 Author Giulia Spider Veloce Enclosure to Spare Parts Catalog 1150 1966/03 101-1600 Spider V. Author Giulia Sprint GT Spare Parts Catalog 1313 1967/12 105 GT Author Shop Manual Propeller Shaft, Rear Axle and Suspension 1222 R1 1968/12 105 Author 2000 Berlina Spare Parts Catalog 1841 1971/11 115 Author 2000 GT Veloce Spider Veloce Spare Parts Catalog 5798 1972/03 115 Author Nuova Super 1.3 & 1.6 Spare Parts Catalog 2103 1973/05 105 Author Shop Manual Engine, Clutch, Gearbox 1008-R3 1973/05 1991 Spider Spare Parts Microfiche 115 Author Golden Anniversary Alfa Romeo Giulietta, Angelo Tito Anselmi N/A 2004 N/A Author Giulietta Sprint 1954-2004 50th Giulietta, Bruno Alfieri N/A 2004 N/A Author Alfa Romeo Production Cars from 1910, Amico & Tabucchi N/A 2007 N/A