IP question

[IDIBRONCO]

Here's some more info. First, I noticed that even though it had been less than 2 hours since I parked the truck, there wasn't even 1/2 of the fuel that drained out of the hard line on the back of the IP as there should have been. That just helped to reinforce my theory that, somehow, the IP was putting too much fuel back through the return lines and that's why I was running of fuel and couldn't keep fuel pressure to the IP.
Earlier, while I was removing the new IP from the Superduty, the first odd thing that I saw was that the wrong bolts were holding the IP to the gear. They were hex headed bolts with 1/2" heads. They were fine threaded and the threads weren't damaged so it didn't bother me. I did reuse the correct bolts when installing it on my engine. Then, as I was going to take the top off of the IP, I saw that the wrong screws were holding it on. Instead of 5/16 hex headed screws with a slot thought the heads, they were torx headed screws. Well they worked so I reused them. Finally, after I removed the forgotten timing adapter from #1 on t he donor (I had 6.9 injectors lines and had never installed one), I noticed that the brass part was MIA on it. I've never seen that before either. I guess that, for now, I'm going to keep running this IP and hold off on buying another and a set of injectors. It may last me 10 days, it may last me 10 years. Who knows?

 

[The_Josh_Bear]

You ain't kidding, that's a lot of odd-ball things going on with that "new" IP. The fact that it started right up and bled the air out quickly is a great start though, makes you feel good about the future of the pump. I wonder how/why that other IP is bypassing so much fuel? Is the check ball missing from the return fitting? Whatever the reason, here's hoping your saga is over for this IP issue!

 

[IDIBRONCO]

. I wonder how/why that other IP is bypassing so much fuel? Is the check ball missing from the return fitting?

I have no idea. When I do buy another IP and injectors, I'm going to use CDD and beg to have this question answered. Even if I don't understand all of the details.

here's hoping your saga is over for this IP issue!

Me too! I'm planning to give it a test on Saturday. Yesterday was a 40+ mile round trup. Saturday will be a 35 mile one way trip and, then if everything goes good, I'm going to head to Wal-Mart and Menards. That should tell me what I need to know.
To put a temporary conclusion on this, the answer to my original question (and the thread title) is that, yes, an IP can cause all of these problems. I say temporary conclusion because I still want to post a few pictures of things that gave me some concerns. Even if I can't make a 150+ mile round trip for some reason, at least I can keep going locally for now. In the spring, I need to start doing a lot of work to the truck so I'll wait until then to take pictures. Not all of the pictures will go in this thread either.