Rawze Bomb Squad

[Rawze]

(02-04-2021 )tree98 Wrote:  

(02-04-2021 )Mattman Wrote:  Why Cummins did not step up and recall all these pumps and replace the ceramic parts is sorry if you ask me.

Like mentioned it is a total engine killer.

The steel plungers will do it too. These are the same types of pumps used on other brands of diesel engines(same failures as well) with high pressure common rail. Must be that nobody can figure out any other way to get fuel pressure up to 30,000 psi.

I don't even think that cummins designed that system... I think it was Bosch, as I have seen related info in the past on this... but not sure about it.

I used to work with industrial systems that had 30,000+psi pressures in the past. It usually takes several dozens of pump stages where each stage only has to deal with a much smaller differential pressure, stringing them in series. I would imagine that this is impractical on an engine where space is severely limited.

Personally, I don't know why they did not design a staged pump into the cylinder head on its right hand side so that no one stage had to deal with such extremes. There is plenty of room for a second cam that could have been used for just this purpose... just my opinion any ways.