Exactly what I thought when I stumbled upon it. Delphi's touted design features directly address the inherent problems with the Bosch pump almost as if they were contracted to solve them. My hope is that its public exposure continues to gain momentum and sheds more light on the culpability that everyday seems to become more apparent.
Credit goes to Elfnmagik for the find... when I read the link he put up, 3 or 4x, I felt that he'd found the pot of gold at the end of the rainbow for all us North American CR TDI lover /Bosch CP4.1 haters. Sooner or later, a CR TDI owner will have to deal with the nightmare of getting stuck perhaps in dangerous rush hour freeway or Interstate traffic conditions or out in the middle of the desert on a hot 115 F + day in the desert Southwest.
I just felt that the find, and the new pump design deserved it's own thread. I agree with Granite rooster on the 6x even per cylinder, though keep in mind, this new pump has been designed with Bluetec technology in mind, no after burn injection of large quantity of fuel to burn off the DPF.
However, with a little bit of engineering and planning, I am sure it could be adapted.
Thinking more about that burn off phase, I wonder how much heat that generates under the hood, and what it does to pump temps and fuel temps when a stationary regeneration takes place? Would that degenerate or displace the lube in diesel fuel? Many of these failures seem to occur when someone pulls into the garage, and a few hours later, they drive to the store and it dies on the way to the store.
The more I think about it, the more problems I see with those extreme heat cycles and doing burnoffs with DPF's versus going and using blue tec technology to keep things clean. That burnoff cycle is hell on everything plastic underneath that hood, severely shortening the life of the plastic components.
Of course, nothing will overcome the flawed Bosch designed pump with the ability to rotate the cam tophat roller follower laterally in the bore and out of alignment with the cam. Even a non engineer that has worked on valve drivetrains such as myself see that as a design flaw. If it doesn't need to rotate, then don't design it so that it can rotate... fix it, pin it, or design it so it can't.
Another blaring trumpet is the timeline... they designed this in conjunction with Volkswagen... why would VW go with Delphi when Bosch has done so much of their fuel pump work in the past? Necessity is the Mother of Invention.
