nissan ca18det

The CA engine is a series of 1. 6 to 2. 0 L Inline-4 piston engines from Nissan. It is designed for a wide variety of smaller Nissan vehicles to replace the Z engine and some smaller, four-cylinder L series engines. The "CA" stands for Clean Air, due to the installation of Nissan emission reducing technology, called NAPS-X.
The CA is a cast iron block, aluminum head design with a timing belt, which was cheaper to make than the timing chain setup on the Z and L engines. Earlier versions featured SOHC and eight valves. The new CA block design was a scaled-up E series block with timing shaft and other ancillaries removed. The oil pump is fitted directly onto the crank nose and the distributor is driven by the end of the camshaft. Like the E series and the A block from which the E was derived, Nissan used a taller block for the largest stroked 2. 0-litre engine. The CA was designed to be compact and light, with a CA16 requiring only 195 litres of space for the earlier Z16), while weighing 23% less at 115 kg....