Moss Motors, Ltd. British Marques Moss Motors, Ltd. Moss Motors British Cars

Car Specifications

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MGB GT 67-71
Vehicle Identification
Vin Plate
Vehicle Number LocationTop left-hand side if the front bulkhead
Body Number Location
Engine Number LocationMetal plate right-hand side of cylinder block
Gearbox Number LocationTop of gearbox, left of dipstick and filler plug
Tune Up
Rear Axle Number LocationFront of left-hand axle tube by spring seat
Engine Firing Order
Valve Rocker Clearance.015 in (.38 mm ) cold
Idle Speed500 rpm
Static Ignition Timing10º BTDC (HC), 8º BTDC (LC)
Dynamic Ignition Timing14º BTDC @ 600 rpm
Timing Mark LocationNotch on crankshaft pulley, pointers on timing chain cover
Distributor Make/Type
Contact Breaker (points) Gap.014 to .016 in (.36 to .41 mm)
Rotation of Rotoranti-clockwise
Dwell Angle60 +/-3 degrees
Ignition Coil Make/TypeLucas 12 volt
Primary Resistance
Spark Plug Make/TypeChampion N-9Y
Spark Plug Gap.025 in (.64 mm)
Carburetor Make/TypeSU HS4
Carburetor Main Jet.090"
Carburetor Main Jet Needle5, FX, AAE, AAL
Carburetor Piston Spring
Vehicle & Engine
Length12 ft 8 1/2 in (3.8 m), 12 ft 9 7/16 in (3.9 m) w/ overriders
Width4 ft 11 15/16 in (152.3 cm)
Height4 ft 1 3/8 in (125.4 cm)
Ground Clearance5 in (12.7 cm) min.
Track Front4 ft 1 in (124.4 cm) disc wheels, 4 ft 1 1/4 in (125 cm) wire wheels
Track Rear4 ft 1 1/4 in (125 cm)
Wheelbase7 ft 7 in (231.1 cm)
Turning Circle32 ft (9.75 m)
Toe-In1/16 to 3/32 in (1.5 to 2.3 mm)
Unladen Weight2190 lb (993 kg)
Curb Weight2310 lb (1048 kg)
Gross Weight2660 lb (1206 kg) max
Original Tire Size165-14
Original Tire Pressure Front (Cold)
Original Tire Pressure Rear (Cold)
Replacement Tire Size165SR-14
Engine Type
Engine Displacement1798 cc (109.8 ci)
Firing Order1, 3, 4, 2
Compresssion Ratio8.8:1 (HC), 8.0:1(LC)
Engine Bore3.16 in (80.26 mm)
Engine Stroke3.5 in (89 mm)
Number of Cylinders4
Oil Pressure Idle10 to 25 lb/in2 (.7 to 1.
Oil Pressure Normal50 to 80 lb/in2 (3.5 to 5.6 kg/cm2)
Ignition Typepoints
Fuel System Type
Fuel Pump Make/TypeSU type HP or AUF 300 electric
Fuel Tank Capacity14 gal
Cooling System Capacity11.4 pints w/o heater, 12 pints w/ heater
Sump Capacity9 pints
Gearbox Capacity, non-overdrive5.6 pints
Gearbox Capacity, overdrive6 pints
Gearbox Capacity, automatic

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