CP4 bypass kit

ScottG wrote:

Grit dog wrote:
I think it's a good addition (without data to back it up personally) ot insurance. $300 vs $10k is an easy choice in my mind. Like dropping $200 on a secondary fileter for my 5.9 Dodge. Did lack of filtration kill my injectors in 120k miles? Idk. Will I put more than another 120k miles on it? Thought i was back in 2014, but now she sits and only gets one oil change worth of miles a year.

What I wonder about the bypass kit, looking at the schematic...
Before the kit, all the fuel ran through the whole pump providing lube (and cooling?) to the pump. Then when the pump spit it's guts (which has been revised in the CP4.2 design), the guts went out with the fuel to the rail.
With the new design, does the pump just run on whatever fuel is left in there? Ie, getting dirty/old/contaminated?

Also, why has S&S not marketed a kit for the Duramax, same pump, same issues (but purportedly better warranty coverage)?

It sounds like full flow is maintained to the cam section for lubrication and cooling. Then that fuel is sent back to the tank rather than through the fuel system and back to the tank.

The part that gets me is they claim it doesn't effect your trucks warranty. I would bet otherwise. As one guy commented, Ford looked for any reason not to cover his repair and you can bet they would deny any responsibility if aftermarket parts are attached to thier pump - and rightfully so. And I too, wonder why there's no kit for DM or Cummins.
I would put it on after the warranty expires.

I certainly see what you're saying, but Ford is well known for denying these warranty claims anyway, which still leaves the owner on the hook even when the truck is still in "warranty". As I said before, my CP4 Disaster Prevention Kit consists solely of refusing to buy any truck that has one! :B