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[Datsun 1200 encyclopedia]

Engine

From Datsun 1200 Club

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Categories: Engine Mechanical | A-series Engines

The Datsun 1200 came only the Nissan A12 engine, a nominally 1200 cc engine that matches its name (it is actually 1171 cc). This four-cylinder A12 engine is a superb little economy engine with good performance and legendary reliability.

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Contents

Overview

See also: A12 engine for more details about A12 Engine

The Datsun 1200 came only the Nissan A12 engine, a nominally 1200 cc engine that matches its name (it is actually 1171 cc). The A12 debuted in 1970 in the first Datsun 1200, and is a redesign of the earlier A10 engine used in the Datsun 1000. It is a traditional type inline 4 cylinder, with overhead valve cylinder head. The A12 engine is a superb little economy engine with good performance and legendary reliability. The Datsun 1200 GX trim model came with a Twin Carburetor version of the A12, the A12GX Engine.

The A12 is a four-cylinder inline engine (a straight engine i.e. I4 or L4).
400px-Reihenmotor_Vier_Zylinder_1-2-4-3.gifWIKI go to Wikipedia
The advantage over a boxer (flat) four-cylinder (famously used by Porsche, Volkswagen and Subaru) is that the inline four has a single cylinder head, meaning it is simpler to maintain. And it has less vibrations (is better balanced) than the relatively uncommon V4 design used in motorcycles and in 1960s/1970s Ford/Volvos. While an inline four is not a perfectly balanced design, the small bore of a 1.2 liter class engine is pretty smooth (balance shafts are often used with larger fours). Contributing to the A12 smoothness is that the Datsun engines are precision "balanced and blueprinted" at the factory — unlike the engines from many other manufacturers.

A12 Engine (single carburetor engine)
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A12 GX Engine (twin carburetor engine)
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A12 Engine ID Mark
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Removal And Installation

Disassembly

Ever wonder how the engine comes apart?

Engine Tips And Tricks

Engine Buildups

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

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This page has been accessed 37,137 times. This page was last modified 20:37, 11 April 2022. Content is available under Datsun 1200 Club.