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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.
SU CARBURETOR & FUEL SYSTEM DETAILS | Fuel system: | | | | Delivery: | | | | A | | SU electric type HP | | B | Mks II and III | SU electric type LCS | | | Later MkIII | SU type AUF 300 | | Tank capacity: | | | | A and B | | 12 gallons (54.5 litres) | | Fuel pipe outside diameter: | | | | A, B and C | | .375 (9.52 mm) | | Maximum flow per hour: | | | | B | | 15 gallons (68.25 litres) | | C | | 12 1/2 gallons (56 litres) | | Suction head: | | | | B | | 18 (457 mm) | | C | | 33 (810 mm) | | Delivery head: | | | | B and C | | 48 (1219 mm) | | Cut off pressure: | | | | B and C | | 3.8 lb/sq in (27 kg/sq cm) | | Carburetor types: | | | | A | | Twin SU horizontal H4 | | B and C | | Twin SU semi-downdraught HD6 | | Mark II | | Triple SU HS4 | | Mark II (series BJ7) | | Twin SU HS6 | | Mark III | | Twin SU HD8 | | Needle (normal): | | | | A | | AJ | | B and C | | CV | | Mkll | | DJ | | Needle (normal): | | | | Mk II (series BJ7) | | BC | | Mark III | | UH | | Needle (rich): | | | | Mark II | | DK | | Mk II (series BJ7) | | RD | | MkIII | | UN | | Needle (weak); | | | | B | | DH | | Mark II (series BJ7) | | TZ | | MkIII | | UL | | Jet size: | | | | A and B | Mks I and II | .090 (2.29 mm) | | | Mk II (series BJ7) | .100 (2.54 mm) | | | MkIII | .125 (3.18 mm) | | Spring colour code: | | | | B | Mk II | Red | | | MkIII | Red and green | | C | | Yellow | | Float setting: | | | | MkIII | | .125 (3.17 mm) | | Venturi: | | | | Mk II (series BJ7) | | 1.75 (44.45 mm) | | MkIII | | 2 (50.80 mm) | | Air cleaners: | | | | A | | Twin 'pancake' type | | B | | Oil wetted |
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