CP4.2 upgraded injector pump (pinned lifter bores RCD performance)

[CrazyCooter]

Turning something 100 degrees is 100 degrees, whether you reference the start from 12 o'clock or 8 o'clock it will turn the same amount.

But isn't it weird that every modified fuel pump they have on that website is $999.99 exactly?

True 100° is 100°, however when it is measured visually at a 2" circle vs a 6"+ circle.......A lot of room for a couple degrees of error? That looks like a 30-40 tooth gear. At 40 teeth, a half tooth is 4.5 degrees and that could be an easy mistake to make.

Old skool timing belt installs on engines with blocks/heads that had been machined and belts that weren't marked come to mind........ Seems like they were always off just enough to make you wonder.

Sponsored

 

[rharr]

Things are still to much in flux at the moment. It seems the ideal path forward is to send RCD the new revision pump with hardened parts, then have them work that with their mods they do.

@californiajeeping you should call RCD since you are most interested and find out what they think about the new version of the pump with hardened parts and if that effects anything with their design.

I have a similar opinion as you. If the dealer is just pulling the old pump and putting a new pump on with out doing the full fuel system then that is a bit of a wet fart. No where in the instructions did i see anything about opening the old pump up to see if it started to fail.

My worry would be the pump has started to fail but hasn't failed and has sent some metal into the system, the dealer pulls old pump swaps on new pump and there is still metal in the system.

In my mind there needs to be some baseline check to see how bad things are before option A or B is done.

 

[Rusty PW]

I want to know how they determine what is a "contaminated" system. Earlier today, I checked my Jeep app and it said that parts are available. So I went to the dealer and talked to one of the service writers. He tried to get into the system and it was down. He said that they can't order parts yet. I asked about the "contaminated system" . He said that if it was, you would have driveability problems.

 

[Lost1wing]

????Assist us????
This isn’t a warrantee repair. It’s a safety recall. No idea why you would want to do this yourself.

Maybe so a 10year old isn't doing his first one at his daddy's dealership. I'm just saying, not many savvy diesel techs working for Jeep dealerships. Maybe I'm wrong?

 

[Free2roam]

So if you pull old pump, then align new pump gear with old pump gear. Reinstall you should be good? My question is can it be installed 180° off similar to an old school distributor? Also can you purchase another gear and pump whether RCD or Mopar install new gear and keep as a backup? (break glass in case of emergency) At that point all you would have to do is align pump gear and install. Correct?

 

[Rusty PW]

After all the dust settles from this recall. And we find more out about the replacement pump. Thinking that I might get a pinned pump.

 

[kilroy173]

Sooo anyone tried this yet?

 

[Rusty PW]

Sooo anyone tried this yet?

If I can get my old pump back from the recall. I'm going to use that as the core for the pinned pump.

 

[kilroy173]

If I can get my old pump back from the recall. I'm going to use that as the core for the pinned pump.

Let us know how it goes!

 

[CreepyJeepy]

So if you pull old pump, then align new pump gear with old pump gear. Reinstall you should be good? My question is can it be installed 180° off similar to an old school distributor? Also can you purchase another gear and pump whether RCD or Mopar install new gear and keep as a backup? (break glass in case of emergency) At that point all you would have to do is align pump gear and install. Correct?

I thought this was correct, but you will need new lines, and I think some seals. The lines can’t be reused. Mine is still in the shop. No ETA on lines.

 

[jc99]

Poking the thread, anyone get one or figure out if RCD can do the pumps for the jeeps? Shot them an email as well, I'll update once I get a response.

 

[jc99]

RCD confirmed the one listed on their page for the Ram 1500 (RCD-3750400001 is for both the Gladiator 3.0 and the Ram.

 

[Mtsel]

Hi, I am looking to buy a diesel gladiator, so I am just here to learn as much as I can first. If the problem is with vacuum events allowing the roller lifter to rotate could you not just install an inline low pressure electric fuel pump to provide constant pressure to the high pressure fuel pump? Edelbrock makes one for $80. Seems like a really simple solution unless there are no soft lines between the tank and hpfp to tie into.

Also, if RDC is right about vacuum events being a problem that could explain why the apparent failure rate is lower in Europe where the vehicles with these pumps are not being offroaded as frequently where “extreme” angles could cause a fuel feed issue, or maybe the European manufacturers with these pumps have a shorter service schedule for the filter. The failures may seem random, but if it is actually due to a design flaw and not poor QC then they can’t be random.

 

[CrazyCooter]

There is already a low pressure fuel pump in the tank.

Hard to say what the real problem is as it seems there haven't been that many failures considering the numbers on the road? I can recall reading about maybe 5 pumps here on the forum out of how many diesel owners? The local dealer says they had not seen a single failure on any of the Chrysler platforms over the years.

Sponsored