Lotus Europa TC Specifications

The following information was copied from the TC shop manual. Use the following shortcuts to quickly get to the section you need.

DimensionsEngine (Gudgeons/Pins)Steering
CapacitiesEngine (Pistons)Front Suspension
Engine (General)Engine (Lubrication)Rear Suspension
Engine (Cyl. Head)Engine (Fuel)Brakes
Engine (Camshafts)Engine (Ignition)Wheels and Tyres
Engine (Jackshaft)Engine (Distributor)Electrical Equipment
Engine (Crankshaft)Cooling SystemBolt Torques
Engine (Flywheel)Clutch
Engine (Rods)Transmission

DIMENSIONS


Wheelbase                               233.7cm/92in
Track
        Front                           135.8cm/53.5in
        Rear                            134.6cm/53in
Overall
        Length                          400cm/157.5in
        Width                           163.8cm/64.5in
        Height                          107.9cm/42.5in
Ground Clearance (design)               15cm/6in
Turning Circle                          12.5m/41ft
Weight (unladen)                        686kg/1513lbs

CAPACITIES


Engine sump (including filter)          4lt/7.5 pts; 9 U.S. pts
Transmission                            1.75lt/3 pts; 3.6 U.S. pts
Coolant (with heater)                   10.8lt/19 pts; 22.8 U.S. pts
Fuel                                    56lt/12.5 gal; 15 U.S. gal

ENGINE

General


Cylinders                               4
Capacity                                1558cc/95.06 cu.in.
Stroke                                  72.746mm/2.864in
Bore
        Grade 1                         82.550-82.558mm/3.2500-3.2503in
        Grade 2                         82.558-82.565mm/3.2503-3.2506in
        Grade 3                         82.565-82.573mm/3.2506-3.2509in
        Grade 4                         82.573-82.580mm/3.2509-3.2512in
Compression Ratio
        TC (all territories)            9.5:1
        Special (U.K. & export)         10.3:1
        Special (N. America)            9.5:1
Pressure at sea level                   In excess of 11.248kg/cm/sq - 160lbs sq in
                                        Each cyl. within 1.41kg.cm.sq - 20lbs sq in
                                        of each other

Cylinder Head


Material                                Aluminum
Gasket                                  Copper/asbestos
Valve timing
        Inlet opens                     26 degrees B.T.D.C.
        Inlet closes                    66 degrees A.B.D.C.
        Exhaust opens                   66 degrees B.B.D.C.
        Exhaust closes                  26 degrees A.T.D.C.
Angle of valve seats & faces            45 degrees
Head diameter - inlet
        TC U.K. & export                38.760/38.862mm - 1.526/1.530in
        TC N. America                   39.624/39.776mm - 1.560/1.566in
        Special all territories         39.624/39.776mm - 1.560/1.566in
Head diameter - exhaust
        All models all territories      33.553/33.655mm - 1.321/1.325in
Stem diameter - inlet and exhaust       7.874/7.899mm - .310/.311in
Stem clearance in guide
        inlet                           .007/.058mm - .0003/.0023in
        exhaust                         .063/.076mm - .0025/.0030in
Clearance (cold)
        inlet                           .127/.177mm - .005/.007in
        exhaust                         .228/.279mm - .009/.011in
Valve springs:
Type                                    Dual
Free length
        inner                           28.70mm - 1.130in
        outer                           36.83mm - 1.450in
Rate
        inner                           28.70mm - 1.130in
        outer                           36.83mm - 1.450in
Valve springs:
        Length
                inlet                   36.608mm - 1.520in
                exhaust                 37.592mm - 1.480in
        External diameter
                Std.                    12.700/12.713mm - .500/.5005in
                Oversize                12.852/12.865mm - .5060/.5065in
Interference fit (all)                  .0127/.0381mm - .0005/.0015in
Fitted height above cylinder head       8.128 - .320in
Internal diameter (all)
 ream after fitting                     7.907/7.932mm - .3113/.3123in
Bore in cylinder head
        Std.                            12.674/12.687mm - .499/.4995in
        Oversize                        12.872/12.839mm - .505/.5055in

Camshafts


Journal diameter                        25.4/25.413mm - 1.000/1.0005in
End float                               .076/.254mm - .003/.010in
Bearings
        Number                          5
Type                                    Steel backed with white metal
Length
        Front                           19.05mm - .75in
        Centre                          16.26mm - .64in
        Rear                            19.05mm - .75in
Running clearance                       .013/.050mm - .0005/.002in
Cam followers:
        Bore in head                    34.925/34.940mm - 1.375/1.3756in
        Outside diameter                34.904/34.912mm - 1.3742/1.3745in
Follower to head clearance              .013/.036mm - .0005/.0014in

Jackshaft


Bearings
        Number                          3
Type                                    Steel backed with white metal
Length
        Front                           19.05mm - .75in
        Centre                          16.26mm - .64in
        Rear                            19.05mm - .75in
Running clearance                       .025/.050mm - .001/.002in
Journal diameter                        39.624/39.637mm - 1.560/1.5605in
End float                               .063/.190mm - .0025/.0075in

Crankshaft


Balance                                 Within 14.42gr cm - 2oz in
Diameter
        Main journals                   53.987/54.000mm - 2.1255/2.1260in
        Crankpin                        49.199/49.211mm - 1.9370/1.9375in
End float
        Dimension                       .076/.203mm - .003/.008in
        Controlled by                   Thrust washers on centre main bearing
Bearings
        Number                          5
        Type                            Steel backed, lead bronze with lead overlay
Running clearance                       .038/.076mm - .0015/.0030in
Max. undersize for re-grind             .762mm - .03in

Flywheel


Max. runnout (lateral)                  .101mm - .004in
Starter ring gear runout
        Lateral                         .406mm - .016in
        Radial                          .152mm - .006in

Connecting Rod


Type                                    'H' section=
Material                                Steel forging
Distance between centres                12.19/12.24cm - 4.799/4.801in
Bearings
        Type                            Steel backed, lead bronze with lead overlay
        Running clearance               .013/.513mm - .0005/.0022in
        End float on crankpin           .101/.254mm - .004/.010in
Small end bore (bushed):
        Grade 'A' (silver)              20.635/20.637mm - .8124/.8125in
        Grade 'B' (green)               20.637/20.642mm - .8125/.8127in

Gudgeon (piston) pin


Type                                    Floating
Location                                Circlips
Diameter
        Grade 'A'                       20.627/20.628mm - .8121/.8122in
        Grade 'B'                       20.628/20.632mm - .8122/.8123in
Class of fit                            Finger push fit

Piston


Type                                    Solid skirt
Material                                Tin plated aluminum alloy
Length                                  68.250mm - 2.687in
Compression height                      39.014/39.065mm - 1.536/1.538in
Max. permissible weight variation per set 4 grams
Rings
        Compression                     2
        Oil control                     1
Diameter
        Grade 1                         82.466/82.474mm - 3.2467/3.2470in
        Grade 2                         82.474/82.481mm - 3.2470/3.2473in
        Grade 3                         82.481/82.489mm - 3.2473/3.2476in
        Grade 4                         82.489/82.497mm - 3.2476/3.2479in
Piston clearance in cylinder bore       1.016mm - .04in towards thrust face
Gudgeon pin bore offset                 .076/.091mm - .0030/.0036in
Ring gap (fitted)
        Compression                     .229/.356mm - .009/.014in
        Oil control                     .254/.508mm - .010/.020in
Piston ring to groove clearance
        Compression                     .041/.091mm - .0016/.0036in
        Oil control                     .046/.097mm - .0018/.0038in

Lubrication System


Pump
Type                                    Eccentric lobe
        Drive                           Gear on jackshaft
Inner and outer rotor clearance         .15mm - .006in
Inner and outer rotor float             .13mm - .005in
Outer rotor to housing clearance        .25mm - .010in
Normal pressure (hot)                   2.4/2.8kg.cm.sq - 35/40psi
Filter                                  Full flow (throw away cannister)

Fuel System


Pump
        Operation                       Lever by eccentric on jackshaft
        Pressure                        .087/.176kg.cm.sq - 1.25/2.5psi
        Air cleaner type                paper element, dry
Carburetter
        Type and number                 Dellorto 40 DHLA, two
        Slow running speed              800 rpm
Settings
        Choke                           30mm
        Main jet                        115
        Main air corrector jet          160
        Slow running jet                50
        Slow running air corrector jet  7850-2
        Pump jet                        8083.40
        Starter jet                     70
        Main emulsion tube              7772-1
        Starter emulsion tube           7482-1
        Needle valve                    7180-15
        Air trumpet length              4.44cm - 1.75in
Carburetter
        Type and number                 Zenith Stromberg 175 CD 2SE, two
        Slow running speed              800/900 rpm
Settings
        Needle                          B1G
        Spring color                    Light blue
        Damper oil                      SAE 20W/50

Ignition System


Type                                    Coil and distributor
Firing order                            1,3,4,2
No. 1 cylinder                          Nearest to front of car
Ignition advance control                Fully automatic
Ignition timing (static)
        Dellorto carburetters           12 deg B.T.D.C.
        Zenith Stromberg carburetters   5 deg B.T.D.C.
Coil                                    Lucas LA12
Spark plugs
        Type                            Champion N7Y
        Gap                             .584/.635mm - .023/.025in

Distributor


Type                                    23 D.4
Direction of rotation                   Anti-clockwise
Drive                                   Gear on jackshaft
Contact breaker gap                     .35/.40mm - .014/.016in
Contact lever spring tension            .51/.68kg - 18/24oz
Firing angles                           0, 90, 180, 270 deg +-1 deg
Cam dwell angle	                        60 deg +- 3 deg
Despatch no.
        Dellorto                        41189
        Zenith Stromberg                41225 when suction retard fitted
Centrifugal advance (all)
Crankshaft rpm			Crank deg B.T.D.C. (add static setting)
  Below 1000                            No advance
        1250                            2.4
        1500                            4.6
        1750                            6.8
        2000                            9.2
        2250                            11.6
        2500                            14 max advance

Cooling System


Type                                    Centrifugal pump and fan
Radiator cap relief valve pressure      .49 kg.cm.sq. - 7psi
Thermostat nominal opening temp.        78 deg C.
Alternator belt tension at top          9.52mm - .375in
Impeller vanes to water pump housing
clearance                               .508/.762mm - .020/.030in

Clutch


Type                                    Borg and Beck, diaphragm spring
Operation                               Cable
Driven plate diameter                   21.59mm - 8.5in
Free movement of withdrawal lever       4.318mm - .170in

Transmission


Type                                    4 forward speeds and reverse
Bearings
        Mainshaft                       Taper rollers
        Secondary gear cluster          Taper rollers
Bearings adjustment                     See section F of manual
Gear ratios:
                4 speed                 5 speed
O/D (5th)       N/A                     0.87:1
4th             1.03:1                  1.21:1
3rd             1.48:1                  1.61:1
2nd             2.25:1                  2.33:1
1st             3.61:1                  3.61:1
Reverse         3.08:1                  3.08:1
Final drive:
        Type                            Hypoid gear
        Bearings                        Taper rollers
        Diff./crown wheel               Taper rollers
Drive shaft end-float                  .050/.076mm - .002/.004in
Bearings adjustment
        Pinion bearing pre-load        See section F of manual
        Crown wheel/pinion		.127/.254mm - .005/.010in
Number of teeth
        Pinion                         9 type 336/352 - 9 type 365
        Crown wheel                    32 type 336/352 - 34 type 365
Speedometer gears
                Driving gear            Driven gear
4th             3.666:1                 4.574:1
3rd             5.268:1                 6.086:1
2nd             8.010:1                 8.807:1
1st             12.851:1                13.646:1
Reverse         10.964:1                11.642:1

Steering


Type                                    Rack and pinion
Steering angles
        Camber                          0 deg to +- 30 min
        Castor                          2 deg 30 min +- 30 min
        Swivel pin inclination          9 deg +- 30 min
Toe in                                  4.8mm to 1.6mm - 3/16 to 1/16in
Condition for checking toe in           15cm - 6in of ground clearance at
                                        bottom of chassis closing plate

Front Suspension


Type                                    Independant
Spring
        No. of coils                    13.5
        Wire diameter                   10.16mm - .40in
Length
        Free                            31.77cm - 12.51in
        Fitted                          20.01cm - 7.88in
Rate                                    1.33kg.m. - 116lb/in
Front hub end float                    .05/.10mm - .002/.004in<

Rear Suspension


Type                                    Independant
Spring
        No. of coils                    19.6
        Wire diameter                   8.23mm - .324in
Length
        Free                            42.54cm - 16.75in
        Fitted                          25.04cm - 9.86in
Rate                                   .865kg.m. - 75lb/in

Brakes


Make and type                           Girling hydralic (servo assisted)
Front brakes
        Disc diameter                   24.76cm - 9.75in
        Pads material                   Ferodo FER .2430 F
        Total disc run out              .10mm - .004in
Rear brakes
        Drum diameter & width - TC      20.3cm x 31.75mm - 8 x 1.25in
        Drum diameter & width - Special 20.3cm x 38.10mm - 8 x 1.50in
        Lining material                 Don.242
Handbrake type                          Mechanical on rear only

Wheels and Tyres


Standard
Wheel type                              Pressed steel - bolt on
Wheel size                              4.5J
Tyres                                   Dunlop SP Sport with tubes
Tyre size                               155 x HR13

Optional
Wheel type                              Alloy - bolt on
Wheel size                              5.5J x 13
Nuts, torque loading                    5.53/6.22kg.cm.sq - 40/50lbs.ft.
Tyres                                   Firestone Cavalino wide oval
Tyre size                               175/185 x 13
Pressure (standard cold)
	Speeds below 160kph - 100mph	Sustained speeds above 160kph - 100mph
	Front	1.27kg.cm.sq. - 18psi		1.69kg.cm.sq. - 24psi
	Rear	1.97kg.cm.sq. - 28psi		2.39kg.cm.sq. - 34psi
Pressure (optional cold)
	Speeds below 160kph - 100mph	Sustained speeds above 160kph - 100mph
	Front	1.125kg.cm.sq. - 16psi		1.547kg.cm.sq. - 22psi
	Rear	1.828kg.cm.sq. - 26psi		2.250kg.cm.sq. - 32psi

Electrical Equipment


Battery
Type                                    Exide 6 VTA 29L
Capacity                                39 amp hr. @ 20 hr. rating
Voltage and polarity                    12 volt negative ground

Fuses
Quantity                                4; 35 amp

Alternator
Type                                    AC Delco DN 460
Max. output                             35 amp @ 3600rpm
Ground polarity                         Negative
Number of poles                         14
Stator phases                           3

Starter
Type                                    Lucas M.35 J
Drive                                   SB (inboard)
Brush tension                           .80kg - 28ozs
Light running current                   65 amp @ 8000/10,000rpm
Lock torque                             .97kg.m. - 7lb.ft. @ 350/375 amps

Lamp bulbs
Headlamp
        RHD, LHD                        410 (45/40W) with 989 (6W) pilot
        France                          410 (45/40W) yellow with 989 (6W) pilot
        N. America                      Sealed beam unit
Front and rear indicators               382 (21W)
Indicator repeater                      501 (5W capless)
Stop and tail lamps                     380 (21/6W)
Rear number plate lamp                  254 (6W festoon)
Reverse lamp                            273 (21W festoon)
Interior lamp                           254 (6W festoon)
Panel (instrument) lamps                987 (2.4W festoon)
Warning lamps                           987 (2.4W festoon)

Bolt Torques


Engine
Cylinder head (tighten cold) pattern     60-65lb./ft. - 8.29-8.98kg.m.
Cylinder head to front cover            10-15lb./ft. - 1.38-2.07kg.m.
Spark plugs                             24-28lb./ft. - 3.31-3.87kg.m.
Camshafts
        Bearing caps                    9lb./ft. - 1.24kg.m.
        Sprockets                       25-30lb./ft. - 3.45-4.14kg.m.
Crankshaft
        Main bearing caps               55-60lb./ft. - 7.60-8.29kg.m.
        Connecting rod (big end) caps   44-46lb./ft. - 6.08-6.36kg.m.
        Pulley                          24-28lb./ft. - 3.31-3.87kg.m.
Flywheel                                45-50lb./ft. - 6.22-6.91kg.m.
Front timing cover 1/4" (UNF & UNC)     5-7lb./ft. - .69-.96kg.m.
                   5/16" (UNF & UNC)    10-15lb./ft. - 1.38-2.07kg.m.
        Back plate to cylinder block    6-8lb./ft. - .83-1.10kg.m.
Timing chain tensioner
        Sprocket pin                    40-45lb./ft. - 5.53-6.22kg.m.
        Retaining bolt                  45-50lb./ft. - 6.22-6.91kg.m.
        Pivot pin                       40-45lb./ft. - 5.53-6.22kg.m.
Jackshaft
        Sprocket                        12-15lb./ft. - .65-2.07kg.m.
        Thrust plate                    5-7lb./ft. - .69-.96kg.m.
Oil filter centre bolt                  12-15lb./ft. - 1.65-2.07kg.m.
Oil pump to cylinder block              12-15lb./ft. - 1.65-2.07kg.m.
Oil sump to cylinder block              6-8lb./ft. - .83-1.10kg.m.
Oil sump drain plug                     20-25lb./ft. - 2.76-3.45kg.m.
Fuel pump to cylinder block             12-15lb./ft. - 1.65-2.07kg.m.
Exhaust manifold to cylinder head       12-15lb./ft. - 1.65-2.07kg.m.
Rear oil seal carrier (crank) to block  12-15lb./ft. - 1.65-2.07kg.m.
Generator to mounting bracket           15-18lb./ft. - 2.07-2.48kg.m.
Carburetter trumpet nuts                8lb./ft. - 1.101kg.m.
Engine mounting bracket to engine       18lb./ft. - 2.481kg.m.

Clutch
Clutch housing to gearbox               40-45lb./ft. - 5.53-6.22kg.m.
Clutch assembly to flywheel             12-15lb./ft. - 1.65-2.07kg.m.

Transmission
Gearbox casing (halves)			
Differential bearing adjusting nuts     15lb./ft. - 2.07kg.m.
Pinion bearing nut                      85lb./ft. - 11.75kg.m.
Side cover plates                       15lb./ft. - 2.07kg.m.
Gearbox mounting bracket to chassis     35lb./ft. - 4.83kg.m.

Front Suspension & Steering
Stub axle retaining nut                 65-75lb./ft. - 8.98-10.36kg.m.
Ball joint
        To vertical link                38-42lb./ft. - 5.25-5.80kg.m.
        To upper wishbone               12-15lb./ft. - 1.65-2.07kg.m.
Lower wishbone
        To trunion *                    35lb./ft. - 4.83kg.m.
        To damper *                     50lb./ft. - 6.91kg.m.
Inner wishbone retaining nut *          50lb./ft. - 6.91kg.m.
Caliper mounting plate to hub           22-27lb./ft. - 3.04-3.73kg.m.
Steering arm to vertical link           22-27lb./ft. - 3.04-3.73kg.m.
Steering tie rod ball joint             26-28lb./ft. - 3.59-3.87kg.m.
Steering tie rod adapter                50lb./ft. - 6.91kg.m.
Steering unit mounting clamps to chass. 10lb./ft. - 1.38kg.m.
Steering column impact clamp            26-32lb./ft. - 3.59-4.42kg.m.

* Tighten with suspension in static ride condition

Rear Suspension
Lower link & damper to bearing housing  55lb./ft. - 7.60kg.m.
Lower link to clutch housing            40lb./ft. - 5.53kg.m.
Lower link mounting bracket to trans    12lb./ft. - 1.65kg.m.
Bearing housing to radius arm           18lb./ft. - 2.48kg.m.
Radius arm front mounting bolt          35lb./ft. - 4.83kg.m.
Rear damper top mounting                40lb./ft. - 5.53kg.m.

Hubs
Rear hub to outboard drive shaft **     150lb./ft. - 20.70kg.m.
Brake disc to front hub                 22-27lb./ft. - 3.04-3.73kg.m.
Front hub to spindle nut ***            5-6lb./ft. - .69-.83kg.m.

**  Assemble with Loctite "35". A rotational free play NOT EXCEEDING
    .127mm (.005in) between the hub and shaft measured at the wheel stud
    MUST be used for LEFT HAND hubs.
*** Tighten nut to this torque loading while rotating the hub to ensure
    bedding of taper rollers. Slacken nut 'one flat', then insert split pin.

Brake Hydralic System Connections
3/8" UNF female (bundy & hose connection) 8-10lb./ft. - 1.10-1.38kg.m.
3/8" UNF male (bundy to master cylinder 5-7lb./ft. - .69-.96kg.m.
7/16" UNF male                          14-21lb./ft. - 1.93-2.90kg.m.
3/8" bore servo bundy (5/8" male)       12-15lb./ft. - 1.65-2.07kg.m.
Stop light switch                       12-15lb./ft. - 1.65-2.07kg.m.
Brake hose to banjo                     12-15lb./ft. - 1.65-2.07kg.m.

General Nuts and Bolts
1/4" UNF and UNC                        5-7lb./ft. - .69-.96kg.m.
5/16" UNF and UNC                       12-15lb./ft. - 1.65-2.07kg.m.
3/8" UNC                                17-22lb./ft. - 2.35-3.04kg.m.
3/8" UNF                                22-27lb./ft. - 3.04-3.73kg.m.
7/16" UNC                               30-35lb./ft. - 4.14-4.85kg.m.
7/16" UNF                               40-45lb./ft. - 5.53-6.22kg.m.
1/2" UNC                                45-50lb./ft. - 6.22-6.91kg.m.
1/2" UNF                                50-60lb./ft. - 6.91-8.29kg.m.
9/16" UNC                               60-70lb./ft. - 8.29-9.68kg.m.
9/16" UNF                               65-75lb./ft. - 8.98-10.36kg.m.
5/8" UNC                                75-85lb./ft. - 10.36-11.75kg.m.
5/8" UNF                                110-110lb./ft. - 13.82-15.20kg.m.

Last update: 1 Jan. 2003