Datsun sidevalve engine


Nissan's sidevalve engines were internal combustion automotive engines used in a variety of vehicles. They were based on the Austin 7 engine, with which they shared the stroke. The series began with a 495 cc iteration for the 1930 Datson Type 10 and ended with the 860 cc Type 10 engine that was used until 1964 for light commercial vehicles. Later versions were called the B-1. It was replaced in 1957 by the OHV Nissan C engine that was essentially a de-stroked version of another Austin design, the BMC B-Series.

DAT 495 cc

The displacement of the original version was kept beneath a half litre, since driver's licenses were not required for such cars after a ministerial decision of 1930. The engine was a square design, with a bore and stroke of. Maximum power was at 3700 rpm.

Applications

For 1933, the rule regarding drivers' licenses was changed so that cars of up to 750 cc could be driven without a license. Accordingly, Datsun enlarged their engine to displace from a bore and stroke of. These dimensions are the same as those of the Austin 7. It produced at 3000 rpm, later increased to.

Applications

This engine is a flat-head side valve automobile engine, a supposedly new design that was slightly smaller but also slightly more powerful than the earlier DAT engine. Bore and stroke were nearly the same as for the earlier version, at. Power is ; in 1936 the engine was upgraded to produce. Postwar cars again claimed, at 3600 rpm. In 1950, power was increased again to.

Applications

The Datsun Type 10 engine was a engine flat-head side valve automobile engine produced from 1952 through 1964. Bore and stroke were in the undersquare British style. Later on, the engine's name was shortened to D-10.
Its original output was for the DC-3, but this increased to at 4000 rpm and at 2400 rpm in 1953 thanks to an increased compression ratio of 6.5:1. The engine used a single carburetor. This engine was called the B-1 when installed in the 1958-1964 Datsun Cabstar; this version produces at 5200 rpm.

Applications