A14 Engine

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Revision as of 06:07, 25 July 2010

The Nissan A14 engine is a 1.4 liter (1397 cc) engine produced from the 1975 Model year through 2007, produced in various ratings from 50 Horsepower to 85 hp. It the most common A-series engine available in the United States, although in most other markets it is relatively rare. Like the previous 1974 A13 Engine, the A14 is a "tall-block" variant, but the bore was increased to 76 mm, up from 73 mm of the previous A12 and A13 engines. A Hitachi Twin Carb "GX" version of this engine (A14T) was available in some markets.

• Being introducedd after 1974, this engine has the features of the A-series Engine Redesign.
• New A14s are still available from Nissan commercial business (e.g. forklift engine) and in the B140 Nissan LDV Bakkie (Sunny Truck).

Identification

• A14 stamped on pad below Spark Plug #4 and 'A14' cast above fuel pump

OR

• A14 stamped on pad above fuel pump

OR

• Notice how the block extends above the timing cover by about 1 inch

• G30 block

• H72 block

Applications

• 1975-1978 Nissan Sunny B210 (140Y or B-210)
• 1979-1982 Nissan Sunny B310 (Datsun 140Y or "Datsun 210")
• 1977-1982 Nissan Pulsar N10 ("Datsun 310")
• 2007 Nissan LDV 1400 (model B140). See Nissan Sunny.
• Datsun Forklift models (including turbocharged variant)

A fuel injected version (A14E) was offered in Asian markets in the B310.

Details

• Engine block has extra mounting boss on left side (now 3 bolts for mounting accessory)
• A-series Cylinder Heads with medium-oval ports of 28 x 34mm
  • Smaller than the A12GX Engine's monster 30 x 34.5 ports
  • Larger than the 1974 A13's 28 x 30 small-oval ports
• New four-bolt water outlet (thermostat housing) instead of former 2-bolt design
• Longer conrod
• New larger conrod small-end piston pin (now 19mm, 1.6 mm larger)
• New large valves (larger than A12GX)
  • Intake valve:
• 3mm larger bore: Now 74 mm
  • requiring new head gasket with large bore
• 3-belt crankshaft pulley (for Water pump, Air Pump, and Aircon)
• Heavier flywheel increased by 2.2 lbs (1 kg) for smoother idling
  • 3mm thicker
• Rubber Engine Mounts now stiffer 1092 lb/in, up from 1008 for 1974 A13.
• Stronger, light Starter (80mm), starting wih 7404 vehicles
• Distributor improved by moving condensor inside the housing
• 3-bolt exhaust pipe-to-exhaust manifold connector
  • stainless front tube (USA only?)
  • aluminized pre-Muffler (USA only?)

HP Ratings

80HP - standard A14

78HP - H73 B210 USA

65HP - Economy A14 Engine. This engine got 47 MPG in the Coupe with 5-speed tranmission. The engine has round exhaust post rather than the usual oval-shaped A14 style. 1976-1978 B210 with 5-speed FU Engine

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