The A10 Engine was designed for the original Datsun Sunny — the Datsun B10 1000. 998 cc with small carburetor and 3 main bearings. The A10 Engine was released in September 1966 in the 1967 model year Datsun 1000.

Nissan A Engines: Overview | A10 | A12 | A12A | A13, old | A13, new | A14 | A15

Overview

The A10 Engine was designed for the original Datsun Sunny — the Datsun B10 1000. 988 cc with small carburetor and 3 main bearings. The A10 Engine was released in September 1966 in the 1967 model year Datsun 1000. The A10 featured a three main bearing crankshaft. Bore was 73mm and stroke was 59mm (same as the older Nissan C engine). With a 2-barrel Hitachi carburetor and an 8.5 to 1 compression ratio this engine produced 62bhp (46kW) @6000rpm and 61.5 lb.ft of torque (83 Nm). The Datsun 1000 Coupe introduced in Sept 1968 was equipped with an uprated A10 engine boasting a free flow dual-outlet exhaust manifold with increased compression ratio, now 9.0:1. With a revised carburetor, this Coupe engine produced 66hp (49kW). Later versions of A10 produced 59 hp (SAE).

BORE X STROKE 73mm x 59mm

standard A10 * 8.5 to 1 compression ratio * 56PS (52hp, 39kW) 7.7kgm torque (57 lb.ft, 77 Nm)

Coupe engine * 9.0:1 compression ratio * 60PS (62bhp,46kW) @6000rpm, 8.5kgm torque (61.5 lb.ft, 84 Nm)

The A10 was succeeded in 1970 by the A12 with redesigned, taller block, although A10 production continued for another 10 years or so.

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Identification

A10s are easily identified by the 'Datsun 1000' valve cover.

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The most distinctive feature may be the rocker cover — it actually has the engine size on it unlike any other A-series cover.

A more reliable way to identify it — since the cover may be changed — is to look for the 'A10' stamp engine ID & serial number

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Applications

Applications: * 1967-1970 Datsun 1000 B10 * 1968-1970 Datsun 1000 ute B20 * 1971-1976 Datsun Cherry E10 (Datsun 100A)

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Datsun 1000 Coupe

Sunny 1000 Coupe has a 60PS engine, rather than the lesser 56PS engine of the sedans. The extra power comes from freer flowing exhaust manifold and flat-tops pistong for increased compression ratio.

[[Black_Sunny_Coupe#174_5cfdfad19ce7f.jpg#174_5d009cc70d186.jpg|]]brochure

Block

A10 has a 3-bearing crankshaft, unique among all A-series engine

Main: A10 Block Comparison

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Engine Assembly

A10 Engine, left side. Most notable feature is lack of a breather pipe hole at the back of the block. The A10 used an old fashion road-breather instead. In fact the entire case bulge is missing in this area.

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