Manual Gearbox - 3 Synchro Internal Components

Manual Gearbox - Flywheel and Clutch
No. Part No. Description Qty. Remarks No. Part No. Description Qty. Remarks
Flywheels
Coil Spring and Diaphragm Spring Clutch Types, 1959-82
1 22A129 FLYWHEEL ASS’Y,two piece, oil-fed 1 1959-62; coil spring clutch. Replaces
bush type
DU bush flywheel on earliest cars.
22A443 FLYWHEEL ASS’Y,two piece, Deva metal 1 1962-63; 1 3/8" dia. Deva bush
bush type
machining and coil spring clutch.
12G3014 FLYWHEEL ASS’Y,one piece , Deva metal 1 1963-82; 1 1/2" dia. Deva bush
bush type
machining, coil or diaphragm clutch.
Originally there were several 1963 on two piece flywheel designs (i.e. the flywheel was bolted to a
separate hub); all are now replaced by the later one piece flywheel.
C-AEG619 FLYWHEEL ASS’Y,lightened steel type 1 For fast road and competition use.
2 12G676 RING GEAR, starter motor, 1/2" wide 1 Included in standard flywheel ass’ys.
22G2613 RING GEAR, starter motor, 11/32" wide 1 Included in C-AEG619 lightened
flywheel assembly.
22A130 GASKET, hub to flywheel 1 1959-62; included in oil-fed bush
flywheel assembly.
3 22A56 SCREW, hub to flywheel 6 Included in two piece flywheel ass’ys.
4 LWZ606 WASHER, shakeproof 6 Included in two piece flywheel ass’ys.
5 FNZ506 NUT 6 Included in two piece flywheel ass’ys.
6 22A325 OIL SEAL, Nu-lip type 1 1959-61; for DU bush type flywheel.
22A214 OIL SEAL, small 1 1961-62; for oil-fed bush type flywheel.
7 2A3530 SCREW, flywheel to crankshaft 1 1959-63.
22A747 SCREW, flywheel to crankshaft 1 1963-82.
8 22A1155 LOCKTAB, flywheel screw 1 Included in 18G8086 clutch lock tab kit.
9 88G508 KEY, flywheel to crankshaft 1
Verto Clutch Types, 1982 On
The Verto flywheel and clutch assembly was introduced as a means of lightening the effort required to
operate the clutch (the older diaphragm clutch was a very strong and reliable design which
unfortunately required an agricultural stomp of the foot, quite unbecoming in a new car by the 1980s,
to operate it).
As replacement par ts, Verto clutches were originally only supplied as balanced assemblies complete with
flywheel, in an attempt to counter clutch judder in service. Nowadays, you can purchase the clutch
components separately if you wish, but the flywheel is still only available as part of the (rather steeply
priced) flywheel and clutch assembly.
10 GCU90107AF FLYWHEEL AND CLUTCH ASS’Y, balanced 1 1982-85; for inertia starter fitted
998cc models.
GCU90115AF FLYWHEEL AND CLUTCH ASS’Y, balanced 1 1985-90; for pre-engaged starter
fitted 998cc models .
GCU90122AF FLYWHEEL AND CLUTCH ASS’Y, balanced 1 1990-94; for 998cc and carburetter
fitted 1275cc models .
GCU90121AF FLYWHEEL AND CLUTCH ASS’Y, balanced 1 1991-96; for SPi (single point
injection) fitted 1275cc models .
GCU90123AF FLYWHEEL AND CLUTCH ASS’Y, balanced 1 1997 on; for MPi (multi point
injection) fitted 1275cc models
plus SPi (Japan).
11 12G2445 RING GEAR, 107 teeth 1 1982-85; included in iner tia starter
flywheel assemblies.
PSF10003 RING GEAR, 129 teeth 1 1985 on; included in pre-engaged
starter flywheel assemblies.
12 DAM5922 BOLT, locking, flywheel to crankshaft 1
13 DAM5923 KEY, flywheel to crankshaft 1
Clutch Kits
14 - CLUTCH KIT, three piece, coil spring type 1 1959-64; kit not available - purchase
parts separately.
15 GCK100AF CLUTCH KIT, three piece, diaphragm type 1 1964-82.
16 GCK149AF CLUTCH KIT, five piece, Verto type 1 1982-90; with 184mm diameter
clutch plate .
17 MHK51141 CLUTCH KIT, five piece, Verto type 1 1990 on; with 190mm diameter
clutch plate .
QKT313AF CLUTCH KIT, five piece, Verto type 1 Heavy duty; for use with Metro Turbo
power unit.
Clutch Components
Coil Spring Clutch, 1959-64
At time of writing, components for the coil spring clutch fitted between 1959 and 1964 are hard to
come by, to say the least. The later design diaphragm housing and/or clutch plate can be used to
repair or replace a coil spring clutch in some instances: however by rule of thumb, the earlier the
flywheel and crankshaft, the less likely this will be possible. On 1963-64 flywheels, it’s a straight
replacement of coil spring clutch parts by diaphragm clutch equivalents. 1962-63 flywheels (i.e. those
with the 1 3/8" machining for the Deva bush) will accept a diaphragm type clutch plate, but not a
diaphragm housing. 1959-62 oil-fed bush type flywheels (can’t be many of these left now, surely - most
were replaced with Deva flywheels in the 1960s) will only accept coil spring clutch components. If you’re
unlucky enough to need to replace the clutch on one of these, a crankshaft, primary gear and flywheel
swap will be required - or an engine swap,which might be cheaper and w ould certainly be quicker.
Please contact Somerford Mini if you require replacement parts for a coil spring clutch assembly,
giving us if possible as much detail as you can about the dimensions of the flywheel to which the
clutch is to be fitted. The following are the original components for coil spring clutches:
18 2A3509 PLATE, pressure 1 Not Cooper models.
22A539 PLATE, pressure 1 997 and 998 Cooper, 1071 Cooper S.
19 88G541 PLATE, driven 1
20 22A214 SEAL, oil, small 1 For 1959-62 models with oil-fed
bush type flywheels.
21 2A3658 STRAP, driving 12
22 2A3659 SCREW, strap 3
23 2A3512 LOCK TAB, strap 3 Included in 18G8086 clutch lock tab kit.
24 PWZ106 WASHER, plain 3
25 22A87 HOUSING, coil pressure springs 1 Does not include springs .
26 2A3657 SCREW, housing to pressure plate 3
27 LWZ606 WASHER, shakeproof 3
28 22A6 SPRING, pressure 6 Not Cooper models.
22A275 SPRING, pressure , black with white spot 6 997 and 998 Cooper, 1071 Cooper S.
colour coded
29 2A3651 FLANGE, clutch release 1
30 22A8 BOLT, housing to flange 3
31 FNZ505 NUT 3
32 51K1261 LOCK TAB, nut 3
33 GRB201 BEARING, clutch release 1
34 18G8086 LOCK TAB KIT, clutch 1 Includes lock tabs for strap and
flywheel securing screws, plus lock tabs
for spring housing screws.
Diaphragm Clutch, 1964-82
35 22A598 PLATE, pressure 1 Standard fitment; not Cooper models.
22G270 PLATE, pressure 1 Standard fitment; Cooper and Cooper S .
C-AHT230 PLATE, pressure 1 Lightweight; for fast road and
competition use.
36 GCP204AF PLATE, driven 1 Standard fitment - road use.
C-AHT596 PLATE, driven 1 Uprated fitment - fast road or
competition use.
C-AHT598 PLATE, driven, sintered paddle type 1 Uprated fitment - competition use.
37 2A3658 STRAP, driving 12
38 2A3659 SCREW, strap 3
39 2A3512 LOCK TAB, strap 3 Included in 18G8086 clutch lock tab kit.
40 PWZ106 WASHER, plain 3
41 GCC103 HOUSING, with diaphragm spring 1 Standard fitment - road use.
C-AEG481 HOUSING, with diaphragm spring, 1 Uprated fitment - fast road or
orange coded
competition use.
C-AEG482 HOUSING, with diaphragm spring, 1 Uprated fitment - competition use.
grey coded
42 AAU7154 PLATE, release 1 Included in housing.
43 22A921 CIRCLIP, plate 1 Included in housing.
44 2A3657 SCREW, housing to pressure plate 3
45 LWZ406 WASHER, shakeproof 3
46 GRB201 BEARING, clutch release 1
47 18G8086 LOCK TAB KIT, clutch 1 Includes lock tabs for strap and
flywheel securing screws.
Verto Clutch, 1982 On
48 GCP271AF PLATE, driven 1 1982-90; 184mm diameter clutch.
GCP90832AF PLATE, driven 1 1990 on; 190mm diameter clutch.
49 GCC679 DIAPHRAGM AND PRESSURE PLATE ASS’Y 1 1982-90; 184mm diameter clutch.
C1644AF DIAPHRAGM AND PRESSURE PLATE ASS’Y 1 1990 on; 190mm diameter clutch.
50 BAU2319 BOLT, diaphragm and pressure plate 3
securing
51 BAU2320 WASHER, shakeproof 3
52 WAM1188 RELUCTOR RING , engine management 1 Injection models only; included in
flywheel and clutch assembly.
53 SJ104121M SCREW, reluctor ring to flywheel 2
54 AHU1564 SLEEVE, clutch release 1
55 GRB239 BEARING ASSEMBLY, clutch release 1
56 AAU2866 O RING, clutch release bearing 1
Tel. 01249 721421 Fax. 01249 721316 www.somerford-mini.co.uk
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