1959-1971 Triumph Herald 1200 12-50 Service & Repair Manual
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TRIUMPH
Herald 1200, 12/50, Vitesse
and
Spitfire Models
COPYprGHT RESERVED
INTRODUCTION
This Workshop Manual, which is in loose-leaf form, has been compiled to assist Standard-Triumph
Distributors and Dealers throughout the world in the efficient repair and maintenance of Herald 1200,
12/50 Vitesse and Spitfire models.
The information most frequently required is given in the preliminary pages and includes:-the
Introduction, General Specification, Unit reference numbers, Vehicle dimensions, Nut tightening torques,
Special tools, Recommended lubricants and Lubrication summary, Jacking system and a short glossary
of part names and alternatives.
Whilst retaining the same grouping system used for Service Information Sheets and previous Workshop
Manuals, this book introduces an additional group having the designation "0". This section gives
recommendations for "running-in", together with instructions for carrying out the "Customer Preparation
Service", detailed periodical lubrication and regular maintenance operations listed on the back of vouchers
contained in the Maintenance Voucher Booklet accompanying each new vehicle. A lubrication chart is
provided at the end of the section.
Dismantling, assembly and adjustment procedures for the complete vehicle are divided into six groups
numbered one to six. Each deals with one major unit and associated parts, except group six, which deals
exclusively with the electrical system. Each group is preceded by a detailed specification and dimensions.
Special Tools
The use of special tools mentioned in the text, contributes to an efficient and profitable repair. Some
operations are, in fact, impracticable without their use, particularly those, for example, which deal with
the assembly of the differential unit. Distributors are therefore urged to check their tools against the list
provided and order those necessary.
Numbering Pages and Section
The running headline, at the top of the page, names each section within a group. For example, group
one contains four sections, namely: Engine, Cooling, Fuel and Exhaust Systems, these being numbered
1 to 4 respectively.
The group number is shown at the top outer edge of each page and is followed by a decimal point.
Each section number is placed after the decimal point following the group number.
Two numerals placed after the section number are used to identify the pages which comprise a particular
section, thus page S of the cooling section would appear 1.205.
Service Information and Amendment Procedure
,
rmation and amendment sheets are issued to the motor trade on/y and are not forgeneralpub/icution.
Design moaifications, changes in procedure and notice of amendment subsequent to the preparation
of this manual are given in Service Information Sheets which are issued regularly to all authorised dealers.
Should existing instructions be affected or additional information be warranted, new pages will be included
with each consecutively numbered notice of amendment. This will also give details of the pages and groups
affected. See page 31. +
To ensure that this manual is kept up to date, Distributors and Dealers are advised to write the
amendment number, the page number and the group num%er in the space provided on the page preceding
Group "0" as the amended pages of text are inserted. Any gaps in the sequence of amendment numbers
will then be readily apparent and immediate action can be taken to obtain the missing sheets.
Schedule of Repair Operations
The operations listed in the "Schedule of Repair Operation Times" refer to those described in this
manual. The time set against each operation in the schedule is evolved by performing the actual operations
on a standard vehicle using special tools where stated. The "Schedule of Repair Operation Times", for
use with this manual, is issued as a separate publication and may be obtained from the Spares Division
under Part Number 511225.
Page 5
LOCATION OF COMMISSION
and
UNIT NUMBERS
The Body Number is on the right-hand side of the
scuttle and the Commission Number (Chassis Number)
on the left-hand side of the scuttle.
The Body Number and the Commission Number
(Chassis Number) are on the right-hand side of the
scuttle (Spitfire).
The Engine Number is stamped on the left-hand
side of the cylinder block.
The Rear Axle Number is stamped on the underside
of the hypoid housing.
The Gearbox Number is stamped on the top face
of the casting at the right-hand side.
IMPORTANT
In all communications relating to Senice or Spares,
please quote the Commission Number (Chassis Number).
Page 11
>y ' '
Page 12
*.
r *
Page 14
Engine
Number of cylinders
Bore of cylinders
Stroke of crankshaft
Piston area
Cubic capacity
Compression ratio
Valve clearances (cold)
Valve timing with clearances
set at 0.0165" (0.42 m m )
Performance Data (Nett)
Brake horse power
Torque
B.M.E.P.
Performance Data (Nett)
Brake horse power
Torque
B.M.E.P.
Lubrication (Engine)
Pump type
Oil filter
Oil pressure at 2,000 r.p.m.
Ignition System
Contact breaker gap
Spark plugs-Type
-Gap
Firing order
Ignition timing (Static)
Cooling System
Circulation
Temperature control
(See page 1.202)
GENERAL SPECIFICATION
HERALD 1200, 12/50
4
2.728" (69.3 mm )
2.992" (76 mm.)
23.45 sq. in. (151 sq. cm.)
1147 C.C. (70 cu.in.)
8.0 or 7 : 1
0.010 (0.254 mm.)
Inlet and exhaust valves to be
equally open at T.D.C.
Compression Ratio 8.0 : 1
39 B.H.P. at 4500 r.p.m.
730 Ibs. in. at 2250 r.p.m.
131 1bs. sq. in.
Compression ratio 8.5 : 1
51 B.H.P. at 5200 r.p.m. 112150
756 lbs. in. at 2600 r.p.m. Jonly
136 Ibs. sq. in.
Eccentric rotor
A.C. Delco, Purolator or Teca-
lemit full flow external replaceable
unit.
40-60 Ibs.sq.in.
(2.8-4.2 kgs.sq.cm.)
0.015" (0.4 mm.)
Lodge CNY 1" reach X 14 mm.
0.025" (0.64 mm.) High comp.
0.030" (0.77 mm.) Low comp.
1 :3:4:2
15" B.T.D.C.
Impeller type pump incorporating
by-pass. Four-bladed, 121" dia. fan
Thermostat
Opening temperature 70°C.
Fully open at 85°C.
SPITFlRE
4
2.728" (69.3 mm )
2.992" (76 mm.)
23.45 sq. in. (151 sq. cm.)
1147 C.C. (70 cu. in.)
9.0 or 7.5 : 1
0.010" (0.254 mm.)
Inlet and exhaust valves to be
equally open at T.D.C.
Compression Ratio 9.0 : 1
63 B.H.P. at 5750 r.p.m.
804 Ibs. in. at 3500 r.p.m.
144 lbs. sq. in.
Eccentric rotor
A.C. Delco, Purolator or Teca-
lemit full flow external replaceable
unit.
60 1bs.sq.in. minimum
(4.2 kgs.sq.cm.)
0.015" (0.4 mm.)
Lodge CNY 1" reach X 14 mm.
0.025" (0.64 mm.)
1 : 3 : 4 : 2
13" B.T.D.C.
Impeller type pump incorporating
by-pass. Two-bladed, 121" dia. fan
Thermostat
Opening temperature 70°C.
Fully open at 85°C.
VIT
6
2.628" (66.75 m
2.992" (76 mm.)
32.55 sq. in. (21
1596 C.C. (97.39
8.75 or 7 : 1
0.010" (0.254 m
Inlet and exha
equally open a
Compression R
70 B.H.P. a! 50
l l l0 Ibs. in. at
143 Ibs. sq. in.
Eccentric rotor
A.C. Delco, P
lemit full flow e
unit.
45 Ibs.sq.in.
(2.8-4.2 kgs.sq.c
0.015" (0.4 mm.
Lodge HLNY a
0.025" (0.64 mm
1:5:3:6:2:
10" B.T.D.C.
Impeller type pu
by-pass. Six-bla
Thermostat
Opening temper
Fully open at 85
GENERAL SPECIFICATION-continued
Radiator
Filler C a p T y p e
-Pressure
Fuel System
Fuel tank
Carburettor
Settings
I
HERALD 1200, 12/50
Pressurised - finned vertical flat
tubes - integral header tank.
A.C.
7 Ibs sq. in. (0.49 kgs. sq. cm.)
Non pressure type mounted in L.H.
side of luggage compartment.
Courier and Estate Car location
under the floor.
Single Solex &O PSEl down-
draught.
Choke tube 21.5
Main jet 112.5
Air correction 175
Pilot jet 45
Pilot air bleed 85
Econostat :-
Fuel jet 100
Air bleed 1.2
Pump rod-outer slot
~i&leaners A.C. Paper element.
Fuel pump-Type A.C. mechanical type Y.
, --Operating pressure It to 24 lbs. sq. in.
(0.105 to 0.176 kg. sq. cm.)
Clutch I
Type
Operation
Borg & Beck 6f" dia. single dry
plate.
Hydraulic.
Gearbox
Type
Four forward speeds and reverse.
Synchromesh on 2nd, 3rd and top
Control
gears.
I Centre floor mounted remoie
I control.
SPITFIRE
Pressurised - finned vertical flat
tubes - separate header tank.
A.C.
7 Ibs. sq. in. (0.49 kgs. sq. cm.)
Non pressure type mounted for-
ward of luggage compartment.
Twin SU HS2 Horizontal.
Needles A.N.
A.C. Wire gauze.
A.C. mechanical type Y.
I t to 24 Ibs. sq. in.
(0.105 to 0.176 kg. sq. cm.)
Borg & Beck 6a" dia. single dry
plate.
Hydraulic.
Four forward speeds and reverse.
Synchromesh on 2nd, 3rd and top
gears.
Centre floor mounted remote
control.
VI
Pressurised -tin
tubes - separa
A.C.
7 lbs. sq. in. (0
Non pressure ty
side of 'luggage
Twin Solex 3
draught.
Choke Tube 1
Main jet 105
Air correction
Pilot jet 35
Emulsion tube
Pilot air bleed
Starter jet 90.0
Needle valve 1
Econostat:-
Fuel jet 130
Air bleed 28
A.C. Paper ele
A.C. mechanic
14 to 24 Ibs. s
(0.105 to 0.176
Borg & Beck
plate.
Hydraulic.
Four forward
Synchromesh
gears.
Centre floor
control.
Gear Ratios
Overall ratios
Rear Axle
Ty pe
Ratio
Brakes
System
Type-Front
Suspension
Front
Rear
Steering
TY pe
Castor angle
Camber Angle
King gin Inclination
Fronfwheel alignment
Rear wheel alignment
Turning circle
GENERAL SPECIFICATION-continued
HERALD 1200, 12/50
Top 3rd
2nd 1st &Rev.
1.0 1.394 2.158 3.746
4.1 1 5.74 8.88 15.42
Hypoid bevel gears.
Tapered roller bearings.
4.11 : 1
Girling hydraulic
It" X 8" (3.175 X 20.32 crns.)
diameter drum.
l&'' X 7" (3.175 X 17.78 crns.)
diameter drum.
Low periodicity independent sus-
pension with wishbones top and
bottom. Coil springs controlled by
telescopic dampers and anti-roll
bar (not fitted on Courier).
Patented bottom bush.
Tapered roller hub bearings.
Swing axle type independent sus-
pension. radius rods and transverse
leaf spring controlled by telescopic
dampers.
Ball and needle roller hub bearings.
Rack and pinion unit.
Telescopic steering column.
4" positive.
2" positive.
6%"
Parallel to h'' (1.6 mm.) toe in.
Parallel to h'' (1.6 mm.) toe in.
25 ft. (7.62 metres).
SPITFIRE
Top 3rd 2nd Ist& Rev.
1.0 1.394 2.158 3.746
4.11 5.74 8.88 15.42
Hypoid bevel gears.
Tapered roller bearings.
4.11 : 1
Girling hydraulic
9" (22.86 crns.) diameter disc.
19" X 7" (3.175 X 17.78 crns.)
diameter drum.
Low periodicity independent sus-
pension with wishbones top and
bottom. Coil springs controlled by
telescopic dampers and anti-roll
bar.
Patented bottom bush.
Tapered roller hub bearings.
Swing axle type independent sus-
pension, radius rods and transverse
leaf spring controlled by telescopic
dampers.
Ball and needle roller hub bearings.
Rack and pinion unit.
Telescopic steering column.
4" positive.
2" positive.
6t0
Parallel to h'' (1.6 mm.) toe in.
Parallel to 8" (1.6 mm.) toe in.
24 ft. (7.32 metres).
Top 3rd
1.0 1.25
4.11 5.16
Hypoid bevel
Tapered roller
4.11 : 1
Girling hydrau
9" (22.86 cms.)
It" X 8" (3.1
diameter drum
Low periodicit
pension with w
bottom. Coil s
telescopic dam
bar.
Patented botto
Tapered roller
Swing axle typ
pension, radius
leaf spring cont
dampers.
Ball and needle
Rack and pinio
Telescopic Stee
4" positive.
2" positive.
6%"
Parallel to h'
Parallel to 8''
25 ft. (7.62 met
Chassis Data
Wheelbase
Track-Front
-Rear
Ground clearance
Exterior Dimensions
Overall length
Width
Height
(Hood up)
(Hood down)
Weight
Dry
Saloon
Coupe
Convertible
Estate car
Courier
Complete (including fuel, oil,
water and tool;)
Saloon
Coup6
Convertible
Estate car
Courier
Capacities
Engine (from dry)
Drain and refill
Gearbox
With overdrive
Rear axle
Cooling system with heater
Fuel tank
(Estate car & Courier van only)
Electrical System
Battery
Control box
Generator
(Maximum output)
GENERAL SPECIFICATION-continued
HERALD 1200, 12/50
7 ft. 7& in. (2325 mm.).
4 ft. 0 in. (1220 mm.).
4 ft. 0 in. (1220 mm.).
62 in. (1 70 mm.). -
12 ft. 9 in. (3885 mm.).
5 ft. 0 in. (1525 mm.).
4 ft. 4 in. (1320 mm.).
4 ft. 4& in. (1335 mm.).
4 ft. I& in. (1245 mm.).
151 cwt. (770 kgs.).
146 cwt. (725.5 kgs.).
146 cwt. (725.5 kgs.).
16& cwt. (820 kgs.).
1 s t cwt. (794 kgs.).
16 cwt. (810 kgs.).
l5& cwt. (787 kgs.).
158 cwt. (794 kgs.).
166 cwt. (860 kgs.).
16f cwt. (825 kgs.).
[MPERIAL U.S.
8 pts. 9.6 pts.
7 pts. 8.4 pts.
1.5 pts. 1.8 pts.
I pt. 1.2 pts.
8.5 pts. 10.2 pts.
6.25 gals. 7.3 gals.
9 gals. 10.8 gals.
12 volt 38 amp. hours.
RB 10612
22 amps.
METRIC
4.6 litres
4 litres
.85 litres
.57 litres
4.8 litres
32 litres
41 litres
SPITFIRE
6 ft. 11 in. (2110 mm.).
4 ft. 1 in. (1245 mm.).
4 ft. 0 in. (1220 mm.).
5 in. (125 mm.).
12 ft. 1 in. (3685 mm.).
4 ft. 9 in. (1450 mm.).
3 ft. I I t in. (1205 mm.).
3 ft. 8f in. (1 125 mm.).
13f cwt. (675 kgs.).
14 cwt. (710 kgs.).
MPERIAL U.S.
8 pts. 9.6 pts.
7 pts. 8.4 pts.
1.5 pts. 1.8 pts.
l pt. 1.2 pts.
9.5 pt+ 11.4 pts.
9 gals.;1, 10.8 gals.
12 volt 38 amp. hours.
RB 340 (22 amps.)
c 40-1 ,A
22 amps.
METRlC
4.6 litres
4 litres
.85 litres
.57 litres
5.4 litres
41 litres
V
7 ft. 7& in. (23
4 ft. 1 in. (124
4 ft. 0 in. (122
6f in. (1 70 mm
12 ft. 9 in. (3
5 ft. 0 in. (1
4 ft. 4 in. (1
4 ft. 41 in. (1
4 ft. 14 in. (1
17 cwt. (876
176 cwt. (888
18 cwt. (914
18k cwt. (927
[MPERIAL
8 pts.
7 pts.
1.5 pts.
2.4 pts.
I pt.
14 pts. 1
8.75 gals. 1
12 volt 38 am
25 amps.
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The Triumph Herald 1200 12-50, produced from 1959 to 1971, is a classic British car that captures the essence of mid-century automotive design. With its sleek lines and compact size, this vintage beauty is sure to turn heads wherever it goes.
Our Full Service Repair package is specially tailored for Triumph Herald 1200 12-50 owners, offering a comprehensive range of services to keep your car running smoothly and looking its best. Whether you need routine maintenance or more extensive repairs, our team of highly skilled technicians is here to assist you.
- Regular oil changes and fluid top-ups to ensure optimal performance
- Tire rotations and alignments for a balanced and safe ride
- Brake inspections and replacements to maintain stopping power
- Electrical system diagnostics and repairs to keep your car running smoothly
- Bodywork repairs and paint touch-ups to restore your car's original beauty
- Interior cleaning and detailing to provide a comfortable and luxurious driving experience
At our repair center, we understand the importance of preserving the heritage and integrity of your Triumph Herald 1200 12-50. That's why we use only genuine parts and follow manufacturer-approved procedures to ensure the highest quality of workmanship. You can trust us to give your classic car the care it deserves.
Don't let maintenance and repairs hold you back from enjoying your Triumph Herald 1200 12-50 to the fullest. Schedule a Full Service Repair today and let us take care of all your automobile needs. Drive with confidence knowing that your vintage vehicle is in expert hands.
