Bottom feed fuel injector. These injectors have several different pintle tip and orifice designs to help prevent deposits. The system pumps more fuel than is needed for injection - a loop circuit returns the excess to the fuel tank via a pressure regulator which keeps the pressure in the pipes constant. Fuel Injectors Although fuel injectors are available in various stylesthey can be divided in two specific categories: In prior bottom feed dianne sapphic erotica, the spring force calibrating device is a solid rod forced into the inlet tube against the spring 40 and staked in place after calibration. Introducing a current difference in piezo element A causes it to become distorted, so that valve B is lifted from its seat. The Ultimate 20 hour car mechanics video course Learn everything about modern cars from our new video series. A fuel injector as in claim 1 characterized in that said closed axial end forms a beastiality forum amateur portion and said closure coacts with said tubular portion. Rather, it is opened by a thermo-time switch, which senses coolant temperature. It then signals the on-off valve ig the injector to open and squirt fuel into the inlet port. Car manufacturers and auto parts stores sell detergents to place in the fuel tank to clean injector tips.