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Austin-Healey
Tech Data for 100/6 & 3000, Mk 1 - 2- 3
(information from AUSTIN-HEALEY: OWNERS WORKSHOP MANUAL, by
Kenneth Ball, Autopress Ltd. 1973)
Dimensions are in inches unless otherwise
stated
"A" refers to the 2639 cc engine with 2 port head
"B" refers to the 2912 cc engine
"C" refers to the 2639 cc engine with 6 port head
While I have tried to be accurate as
possible, it is very likely that there are typos and errors on this page.
Please note that no one associated with austin-healeys.com assumes any liability
arising from the information presented here. If you find a mistake, please let
me know from the contact
page and I will correct it.
CLUTCH & GEARBOX DETAILS
| Clutch: |
|
|
| A and B make |
|
Borg and Beck |
| A |
Mks I and II type |
Dry plate |
| B |
Mks II and III (from
No. 29F.4898) |
9 DSG diaphragm |
| A |
Diameter |
9 (229 mm) |
| B |
Mks I and II |
10 (254 mm) |
| A |
Friction area |
2 x 36.5 sq in (235 sq cm) |
| B |
|
2 x 39 sq in (241.5 sq cm) |
| A and B |
Thickness |
.150 (3.8 mm) |
| A and B |
Release bearing |
Copper carbon graphite |
| A |
Number of springs |
9 |
| B |
|
12 |
| B |
Colour of springs |
Yellow/light green |
| A |
Total axial spring
pressure |
1215 to 1305 lb (551 to 592
kg) |
| B |
|
1620 to 1740 lb (735 to 789
kg) |
| A and B |
Distance thrust race to
thrust plate |
.10 (2.54 mm) |
| A and B |
Thrust plate travel to
fully released |
.42 to .47 (10.66 to 11.93
mm) |
| B
Mks II and III from No. 29F.4898 |
|
|
| Clutch plate
diameter |
|
9.63 (203.2 mm) |
| Material |
|
Wound yarn |
|
Number of damper springs |
|
6 |
|
Damper spring load |
|
110 to 120 lb (49.8 to 54.3
kg) |
|
Damper spring colour |
|
Dark grey/light green |
|
Release bearing |
|
Graphite (MY3D) |
|
Fluid |
|
Castrol Girling Amber Brake
Fluid |
| Transmission: |
|
|
| A and B |
Gearbox type |
Synchromesh on 2, 3, top |
| A and B |
Gear type |
Helical constant mesh |
| A and B |
Overdrive type |
Laycock de Normanville
(electric control) |
| A
Gear Ratios |
First |
3.076:1 |
| B |
|
2.93:1 |
| From engine #10897
(overdrive) |
|
|
| Engine #11342 (without
overdrive) |
|
2.83:1 |
| MkIII |
|
2.637:1 |
| A |
Second |
1.913:1 |
| B
As above |
|
2.053:1 |
| |
|
2.06:1 |
| |
|
2.07:1 |
| A |
Third |
1.333:1 |
| B |
|
1.309:1 |
| |
|
1.31:1 |
| |
|
1.306:1 |
| A |
Overdrive third |
1.037:1 |
| A and B |
Fourth |
Direct |
| A |
Overdrive |
.778:1 |
| B |
|
.822:1 |
| MkIII |
|
.820:1 |
| A |
Reverse |
4.16:1 |
| B |
|
3.78:1 |
| |
|
3.72:1 |
| MkIII |
|
3.391:1 |
| Standard box: |
|
|
| A |
First |
12.027:1 |
| B
(3.545:1 axle) |
|
10.386:1 |
| From engine #11342 |
|
10.209:1 |
| Mk III |
|
9.348:1 |
| A |
Second |
7.48:1 |
| B |
|
7.877:1 |
| |
|
7.302:1 |
| |
|
7.341:1 |
| A |
Third |
5.212:1 |
| B |
|
4.640:1 |
| |
|
4.743:1 |
| |
|
4.629:1 |
| A |
Fourth |
3.91:1 |
| |
|
3.545:1 |
| A |
Reverse |
16.4:1 |
| B |
|
13.4:1 |
| |
|
13.127:1 |
| |
|
12.021:1 |
| Including overdrive: |
|
|
| A |
First |
12.6:1 |
| B
(3.909:1 axle) |
|
11.453:1 |
| From engine #10897 |
|
11.257:1 |
| MkIII |
|
10.308:1 |
| A |
Second |
7.84:1 |
| B |
|
8.025:1 |
| |
|
8.052:1 |
| |
|
8.095:1 |
| A |
Third |
5.47:1 |
| B |
|
5.116:1 |
| |
|
5.120:1 |
| |
|
5.105:1 |
| A |
Third, overdrive |
4.24:1 |
| B |
|
4.195:1 |
| |
|
4.198:1 |
| |
|
4.188:1 |
| A |
Fourth |
4.1:1 |
| B |
|
3.909:1 |
| A |
Fourth, overdrive |
3.19:1 |
| B |
|
3.205:1 |
| |
|
3.205:1 |
| |
|
3.207:1 |
| A |
Reverse |
17.1:1 |
| B |
|
14.776:1 |
| |
|
14.541:1 |
| |
|
13.255:1 |
| Layshaft bearing: |
|
|
| A and B |
Type |
Needle roller |
| A
and B |
Number of rollers |
46 |
| A
and B |
Length of roller |
1.551 (39.6 mm) |
| A
and B |
Diameter of roller |
3.118 (3 mm) |
| B |
End float |
.0120 (.30 mm) |
| Mainshaft bearing: |
|
|
| A and B |
Make |
R&M |
| A and B |
Type |
MJ 35 |
| A and B |
Size |
1.39 x 3.15 x .827 (35 x 80 x
21 mm) |
| First motion shaft
bearing: |
|
|
| A and B |
Make |
R&M |
| A and B |
Type |
IM.J40.G |
| A and B |
Size |
1.58 x 3.55 x .905 (40 x 90 x
23 mm) |
| Oil capacity standard box |
|
5 pints (2.8 litres) |
| Oil capacity overdrive
fitted |
|
6 1/4 pints (3.6 litres) |
| Synchromesh hubs end float |
Second |
.007 (.18 mm) |
| |
Third. fourth |
.031 (.8 mm) |
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