Cummins fuel bleed screw-gctid813680

[Checks_Five-Oh]

I am looking for the location of the fuel bleed screw and manual pump on a 330 cummins. Anyone?

Thanks

[higgins_jr]

Not sure about a bleed screw if there is one, but the small manual pump (3/4" cylinder) is on the side of the injector pump housing. Push it a few times and you'll feel it firm up as the pressure builds. Don't have a pic, but the cylinder is on the side on an angle.

Hope this helps. Cheers

[The_Other_Gary]

What year and CPL number is the engine? It makes a difference on the injector pump.

If it is CPL 1928 which has the nippondenso injector pump the bleed screw is at the front on the right side of the injector pump

Just crack it a bit and use the manual pump on the lift pump to evacuate air. The lift pump is halfway back on the port side of the engine.

If it is CPL 1975 which has the Bosch pump there may be a bleed screw in almost the same place or none at all, in which case you may have to crack

the lines slightly on the top of the pump to evacuate air.

[Checks_Five-Oh]

Not sure what the CPL number would be. The engines are 2002. Thanks for your help. I will check this weekend when I get to the boat.

Greatly appreciate the feedback.

J

[The_Other_Gary]

CPL number is the build type, it is on the plate at the front left side of the block. It details the parts makeup of the engine.

Yours will be CPL 1975 which was installed from 2000 and newer. Bosch pump which does not have a bleed screw.

Bleed air by cracking each injector while turning over the engine or using the manual lift pump shown in the arrow. If you use the manual method

take a cord and pull UP the fuel solenoid to turn the fuel on and tie it off so fuel will flow. Don't forget to remove the cord before you try to start

the engine or you will wonder why it will not turn off. Fuel solenoid is the black boot on the right.