Triumph TR3 Instruction Book
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Triumph TR3 Instruction Book

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  • Page 2 INSTRUCTION BOOK Part No. 501528 TRIUMPH SPORTS CAR SIXTH EDITION Third Printing Issued by STANDARD-TRIUMPH SALES LIMITED COVENTRY, ENGLAND...
  • Page 3 Fig. 'THE TRIUMPH TR3 SPORTS CAR...

  • Page 4: Foreword

    FOREWORD Triumph vehicles are so designed that a minimum of attention is required to keep them in satisfactory running order. There are, however, certain maintenance operations which must be undertaken regularly. The object of this instruction book is to assist the owner to understand the various operations required, and so ensure that the vehicle receives regular and correct attention.

  • Page 5: Spare Parts Service

    Owners of this model who wish to be kept informed of modifications and competition tuning hints should register as a member of the Triumph Sports Owners' Association ; details are given in the booklet enclosed with this literature, or apply to the Publicity Dept., Standard-Triumph Sales Limited,...
  • Page 6 LIST OF SECTIONS Foreword General Specification Instruments, Switches and Controls Driving the Car Starting—Gear Changing—Desirable Speed Limits—New Engines General Upkeep Regular Inspection — Cooling System — Lubrication — Engine —Gearbox—Rear Axle—Brake and Clutch Operation—Road Wheel Hubs—Front Suspension and Steering—Rear Road Springs —Hydraulic Dampers—Propeller Shaft—Hinges,...

  • Page 7: General Specification

    GENERAL SPECIFICATION Engine Number of cylinders 3.386 in. (86 mm.) Bore of cylinders 3.268 in. (83 mm.) (Special Order) ... 3.622 in. (92 mm.) Stroke of crankshaft 36 sq. in. (232 sq. cm.) Piston area ... 33.5 sq. in. (216 sq. cm.) (Special Order) Cubic capacity 130.5 cu.
  • Page 8 GENERAL SPECIFICATION [ With valve-rocker clearance set at 0.0165" (0.42 mm.)]. VALVE TIMING. Inlet and exhaust valves to be equally open at T.D.C. on the exhaust stroke. VALVE-ROCKER CLEARANCES (see page 31). (see page 31). IGNITION TIMING Set to fire at 4° before top dead centre (distributor contact points just opening).

  • Page 9: Instruments, Switches And Controls

    INSTRUMENTS, SWITCHES AND CONTROLS Fig. 2. Instruments, switches and controls. NOTE :—In left-hand drive cars D changes with K, E with M, and F with H. Scuttle Ventilator Control. To open ventilator pull control knob. Windscreen Wiper Switch. Pull knob to operate ; they will only function when the ignition is switched on.
  • Page 10 INSTRUMENTS, SWITCHES AND CONTROLS Indicates the engine speed in revolutions per minute. H Tachometer. (See page 12). Overdrive Control Switch. See page 51. Glows red when the ignition is switched on Ignition Warning Light. with the engine idling or stopped. It is an indication that current is being drawn from the battery for the ignition circuit, or other purposes that are controlled by the ignition switch.
  • Page 11 The fasteners at each side of the bonnet can be released by turning them anti-clockwise with the special key provided. The safety catch is situated under the front of the bonnet, in line with the " H " of TRIUMPH and may be released with the fingers. (Fig. 4).

  • Page 12: Driving The Car

    DRIVING THE CAR TO START THE ENGINE IMPORTANT If the engine does not start when the starter is first operated, do not operate the starter again until both starter motor and engine have come to rest. This will avoid damage to the starter pinion. Starting when Engine is Cold Place the gear lever in the neutral position and apply the handbrake.
  • Page 13 DRIVING THE CAR DRIVING Gear Changing Use a slow and deliberate movement to change gear, and always move the gear lever fully home. Do not engage first gear at speeds in excess Reverse gear must not be engaged whilst the car is moving of 15 m.p.h.
  • Page 14 GENERAL UPKEEP REGULAR INSPECTION Every 250 miles check the oil level when the engine is cold, and top up if necessary. Withdraw dipstick (F) (Fig. 5) and wipe clean, then insert and push fully home before withdrawing for reading. The lower mark on the dip- stick indicates that 4 pints (Imperial) of oil will be required for topping up.
  • Page 15 0°F. (-18°C.) during frosty weather by using 3 pints (Imperial) of anti-freeze. In countries where sub-zero temperatures prevail, consult your Triumph dealer regarding the quantity of anti-freeze required. Do not use the same anti-freeze for more than one season since the inhibitor becomes exhausted and the components in contact with the cooling water may corrode.
  • Page 16 GENERAL UPKEEP Draining To drain the engine, gearbox and rear axle, remove the plug provided beneath each unit. This process is assisted by opening the filler to allow ingress of air and by draining when the oil is hot, i.e., immediately after a run.
  • Page 17 GENERAL UPKEEP Every 3,000 miles remove the dampers (indicated by arrows) and replenish the dashpots with oil. The oil level is correct when, utilizing the damper as a dipstick its threaded " plug is approximately ¼ above the dashpots, when resistance is felt. Apply oil to the thrott e linkage but do not oil the bearings of the trans-...
  • Page 18 This should be done preferably by the nearest Triumph or Lucas Service Depot. Every 6,000 miles pour a few drops of engine oil through the hole in the centre of the rear end cap.
  • Page 19 GENERAL UPKEEP Air Cleaners Every 6,000 miles, remove the air cleaners and wash them in petrol, particularly the gauzes, which must then be soaked in oil and allowed to drain before finally wiping them over and refitting. It is very important when refitting the air cleaners that the holes immediately above the setscrew holes in the carburettor are aligned with similarly positioned holes in the cleaner.
  • Page 20 GENERAL UPKEEP Check the oil level during this period, especially after the first 1,000 miles, and replenish if necessary to level with bottom of the threads in the filler orifice. Should a top-up be necessary, investigate the cause of oil loss. The filler plug fitted to the rear axle cover is accessible from underneath the car (see arrow A, Fig.
  • Page 21 GENERAL UPKEEP Handbrake Cable Conduit Every 6,000 miles, apply the grease gun to a grease nipple fitted in the conduit, as shown on the lubrication chart. During the winter months it is important to keep the cable regularly lubricated. This will prevent the entry of water and the possibility of freezing which would lock the brake cable.
  • Page 22 GENERAL UPKEEP FRONT SUSPENSION AND STEERING Nipples are provided for lubricating the steering swivels (A), outer tie rod, ball joints, outer bushes of. the lower wish-bones (B) (Fig. 13), and the steering slave drop arm pivot. Do not lubricate the joints attached to the drop arms as they contain rubber.
  • Page 23 GENERAL UPKEEP Every 6,000 miles, lubricate the steering box after removing the rubber plug situated on the steer- ing column and top up with oil to the level of the orifice. Fig. Steering box filler/level plug (arrowed). REAR ROAD SPRINGS Paint over the spring blades with old rear axle or engine oil, particularly around the blade tips and clips.
  • Page 24 TYRE PRESSURES Goodyear Allweather Goodyear Motorway Goodyear D.F.S. Goodyear Allweather Rib Nylon Special (165—380) Dunlop Gold Seal Dunlop Road Speed Michelin Dunlop Gold Seal Nylon R.S.5 (165/15X) OPERATING CONDITIONS 5.50/5.90-15 5.50/5.90-15 5.50/5.90-15 (165/15X) Lbs. per sq. in. Lbs. per sq. in. Lbs.
  • Page 25 GENERAL UPKEEP TYRES The maintenance of correct tyre pressures is important to the life of the tyres and behaviour of the steering and suspension. Examine the tyres occasionally for flints or other road matter which may have become embedded in the tread. By using fuel sparingly, clean off any oil which may have got on the tyres.
  • Page 26 GENERAL UPKEEP home in its socket before operating the jack handle. If a jack is used under the rear axle case, ensure that the jack pad does not touch the rear cover plate when lifting, other- wise there is a risk of damage and con- sequent oil leakage.
  • Page 27 TOOLS Fig. Tools stowed in spare wheel compartment. The jack and wheel brace are situated in the spare wheel compartment (Fig. 19). The remaining tools are placed in the tool roll and stowed in the luggage compartment. If the vehicle has wire wheels, then the wheel brace (2), combination tool (5) (Fig 20), are omitted from the tool kit and a screwdriver, tommy bar and copper-faced hammer are included.

  • Page 28: Bodywork

    BODYWORK Dust may be removed from the exterior by using a soft cloth only, but if it has been wet at any time it is advisable to use a sponge and water. Always use water when removing mud and when the car is clean finally wipe over with an almost dry chamois leather.
  • Page 29 BODYWORK Fig. 21. Soft top details. Hood support sticks lowered. Soft top rear attachment points. Hood support stick cover. Hood support sticks raised. Utilizing key 10 (Fig. 20) to Soft top front attachment points. detach side screens.
  • Page 30 BODYWORK Fig. " Tenax " soft top fasteners. Removal and Stowage of Soft Top Two types of fasteners are used. They are " Lift the Dot " and " Tenax ". When fitting either type it is only necessary to push fasteners over the securing stud as shown in Fig.
  • Page 31 BODYWORK Fig. 23. Hard top and tonneau cover. Hard top fitted. Front hard top fixings (3 off) Tonneau cover fitted. Rear hard top fixings (5 off)
  • Page 32 RUNNING ADJUSTMENTS Various adjustments are necessary from time to time in order to maintain the mechanism in good running order. No definite period can be stated for carrying out these adjustments since this is dependent upon the manner in which the vehicle is used. The most important adjustments and the re- commended intervals between, are as follows.
  • Page 33 RUNNING ADJUSTMENTS Fig. 25. Ignition leads. To obtain TDC rotate the crankshaft until the inlet valve of No. 1 cylinder is open then slowly turn the crankshaft until the small hole in the crankshaft belt pulley aligns with ti ming cover pointer (Fig. 26).
  • Page 34 RUNNING ADJUSTMENTS TWIN S.U. CARBURETTORS (Type H6) Tuning Multi-carburettor installations cannot be successfully tuned unless the general engine conditions (such items as tappet clearance compressions) and the With regard to the carburettors ignition system are in a satisfactory state. themselves the cleanliness of the suction piston units, the position of the needles, the jet centring and oil level in dampers, etc., should be checked.
  • Page 35 RUNNING ADJUSTMENTS With a downwards pressure on the throttle adjusting screw (3), adjust the appropriate screw until the level of hiss is similar at both carburettor intakes and the idling speed approximately 500 r.p.m. To reduce hiss at carburettor intake, UNSCREW the adjusting screw. When level of hiss is similar, stop engine and with a downward pressure on the rear throttle arm, tighten the throttle spindle clamping bolt and re-check hiss.
  • Page 36 RUNNING ADJUSTMENTS Fig. Carburettors. Air cleaners. Return spring. Jet adjusting nuts. Dampers. Pivot pins. Piston lifting pin. Jets. Gland nut. Choke cable. Jet spring. Mixture control rod. Whilst holding the jet (9) in its upper position, move the jet assembly laterally until the jet is concentric with the needle, then tighten This condition has been achieved when the piston gland nut (4).
  • Page 37 RUNNING ADJUSTMENTS Float Chamber Fuel Level The level of the fuel in the float chamber is adjusted by setting the fork lever in the float chamber lid. It is suggested that the following procedure for its adjustment is adopted, Disconnect the fuel feed pipe from the float chamber lid, then remove the lid securing nut, washers and overflow pipe.
  • Page 38 RUNNING ADJUSTMENTS Needles When the The correct needle for normal and competition work is S.M. carburettors are fitted with oil bath air cleaners use CIW needles. The needle should be fitted with its shoulder flush with the under face of the piston (Fig.
  • Page 39 RUNNING ADJUSTMENTS The glass bowl acts as a sediment chamber for the petrol passing to the pump. This foreign matter collects on the underside of the gauze and, being washed off by petrol, sinks to the bottom of the bowl. To remove the sediment, detach the bowl by unscrewing the nut (arrowed Fig.
  • Page 40 RUNNING ADJUSTMENTS BRAKES The pedal operates the brakes on all four wheels hydraulically, whilst the handbrake operates the brakes on the rear wheels by means of cables. See page 19 for checking level of fluid in reservoir. If the level of fluid is particularly low, this indicates that a leak has developed in the system.
  • Page 41 Whilst the majority of owners will prefer to have these operations carried out by a Triumph Agent, for the benefit of those desiring to carry out their own running adjustments, the procedure is as follows :...
  • Page 42 RUNNING ADJUSTMENTS PROPELLER SHAFT If the propeller shaft has been taken apart it is essential to ensure that the arrows on the universal joint and propeller shaft are aligned during re-assembly (see Fig. 15, page 22). HYDRAULIC DAMPERS The front telescopic dampers cannot be adjusted or topped-up. If they have been removed, hold them the right way up and pump the pistons to each end of the stroke before refitting them.

  • Page 43: Electrical System

    ELECTRICAL SYSTEM A 12 volt earth return lighting and starting set is fitted. One cable should be disconnected from the battery terminal before removing any electrical unit, otherwise there is risk of a serious " short ". A list of the maker's numbers and descriptions of electrical equipment will be found on page 50.
  • Page 44 Fig. 36. Generator. THE STARTER MOTOR Cleaning and Lubrication The starter brush gear and commutator will not normally require attention. After miles however, it is advisable to have the unit serviced at 48,000 a Triumph or Lucas Service Depot. SPORTS CAR...
  • Page 45 If it is not possible to locate the cause of the trouble and the new fuse blows immediately, the equipment should be examined by a Triumph or Lucas Agent or Service Depot.
  • Page 46 ELECTRICAL SYSTEM LAMPS Headlamps The lamps have the reflector and glass sealed as a unit. The bulb has a " pre-focus " cap accurately located and correctly positioned relative to the reflector, thus no adjust- ment to focusing is required when a replacement bulb is fitted..
  • Page 47 ELECTRICAL SYSTEM To Check and Adjust Alignment Park the car in front of a garage door or wall and square to it. FRONT OF VEHICLE TO BE SQUARE WITH SCREEN VEHICLE TO BE LOADED AND STANDING ON LEVEL GROUND RECOMMENDED DISTANCE FOR SETTING IS AT LEAST 25FT. FOR EASE OF SETTING ONE HEADLAMP SHOULD BE COVERED Fig.
  • Page 48 ELECTRICAL SYSTEM Switch on the headlamps and adjust the lamps, if necessary, until the centre of each circle of light coincides with the centre of its respective cross. If adjustment is necessary, proceed as follows : Withdraw the front rim as shown on Fig. 41. Remove the dust-excluding rubber.
  • Page 49 ELECTRICAL SYSTEM Fig. 43. Wiring Diagram.
  • Page 50 ELECTRICAL SYSTEM KEY TO COMPONENTS Fig. 43. STOP/TAIL LAMP FLASHER LAMP NO. PLATE LAMP FLASHER LAMP STOP/TAIL LAMP SPEEDOMETER REVOLUTION COUNTER PANEL LAMPS HIGH BEAM INDICATOR LAMP IGNITION COIL DISTRIBUTOR PETROL TANK UNIT FUSE UNIT STOP LAMP SWITCH SIDE (PARKING) AND FLASHER LAMP HEADLAMP HORNS DIPPER SWITCH...
  • Page 51 ELECTRICAL SYSTEM Ignition Warning Light Each bulb holder can easily be Direction Indicator Warning Light withdrawn from the rear of the High Beam Warning Light panel for bulb renewal. Instrument Panel Lights Replacing these bulbs is best left to the safe hands of a Service Station. DIRECTION INDICATORS These are of the flashing type operating in the dual filament bulbs in the parking lamps at the front and the tail lights at the rear.

  • Page 52: Optional Extras

    OPTIONAL EXTRAS RADIO For operating instructions, see the radio leaflet provided with the set. The set is protected against electrical damage by a 5 amp. fuse housed in the The aerial mast should always be lowered when the main lead union. set is not operating.
  • Page 53 BRITISH ISLES (All Seasons) *Where circuit or other severe competitions are contemplated it is advisable to use oils of high viscosity in view of the increased temperature encountered. Mobil — Shell — Esso — B.P. — Castrol — Duckham's — Smith ANTI-FREEZE SOLUTIONS Permazone Anti-freeze...
  • Page 54 OVERSEAS COUNTRIES...

  • Page 55: Summary Of Lubrication Points

    SUMMARY OF LUBRICATION POINTS Fig. 48. SPORTS CAR...
  • Page 56 LUBRICATION...

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