The Cléon-Alu engine, also known under the code "A engine" or "A-Type" (A for aluminium) is an automotive gasoline internal combustion engine, developed and produced by Renault in 1960. A four-stroke inline four-cylinder design with aluminium-alloy block and cylinder head, it was water cooled, with a five main bearing crankshaft and a side-mounted chain-driven camshaft operating eight overhead valves via pushrods and rockers. It made its debut appearance on the Renault 16.[1][2]
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| Renault Cléon-Alu engine | |
|---|---|
| Overview | |
| Manufacturer | Renault |
| Production | 1960–1986? |
| Layout | |
| Configuration | Inline 4 |
| Displacement | 1.5 L (1,470 cc) 1.6 L (1,565 cc) 1.6 L (1,596 cc) 1.6 L (1,605 cc) 1.6 L (1,647 cc) |
| Block material | Aluminium alloy |
| Head material | Aluminium alloy |
| Valvetrain | OHV 2 valves x cyl. |
| Combustion | |
| Turbocharger | In some sports versions |
| Fuel system | Carburetor Fuel injection |
| Fuel type | Gasoline |
| Cooling system | Water cooled |
| Chronology | |
| Successor | Renault F-Type engine |
The AxK displaces 1.5 L (1,470 cc) from a bore and stroke of 76 mm × 81 mm (2.99 in × 3.19 in). Applications:
The AxL displaces 1.6 L, from either 1.6 L (1,565 cc), 1.6 L (1,596 cc), or 1.6 L (1,605 cc). All of these variants share an 84 mm (3.31 in) stroke, with bores of 77, 77.8 or 78 mm (3.03, 3.06 or 3.07 in).

Applications:
The AxM displaces 1.6 L (1,647 cc) from a bore and stroke of 79 mm × 84 mm (3.11 in × 3.31 in). It was originally known as the type 841 or 843, depending on output. Often used as a designator for the Renault R17 Gordini sub-model in the USA market 843/13. 82 hp (61 kW; 83 PS), Compression Ratio 9.25:1 with Bosch L-Jetronic Fuel Injection and standard distributor with points/condenser for timing.[3]