... A type pump.·Injector is of long body closed type, with holes 4×Φ0.30mm,opening pressure 19. ... 1±0.45MP(195±5kgf/cm2).·Oil pump is of gear drive ... pump is centrifugal type,with wax type thermostat.The main technical parameters of CY4102BQ Model CY4102BQ Type Vertical, in-line, ... 7 m passenger bus ect. CY4102 Vertical, in-line, water-cooled, four strokes, natural aspirated