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Bud if it will start again make sure the tank is venting crack the fuel cap loose and go for a drive ! if the tank breather is plugged it will create a vacum and suck the fuel back to the tank!

Agree with this you need to start at the front and work back on this! Drain back valve First / check valves in the transfer pump ? Have you looked at the lines and filters yet? Judging by how quick the start issue happens it may be the fuel pump rack sticking at low RPM! Try some fuel conditioner Standyne or howes fuel condtioner See if it smartens up! Just something to try!

Good score! Real bargain!

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Chances are you won't Find it ! As you said you WILL replace the lift pump! ain't worth taking the chance on your dime! You can't fix what you can't see! Magic wand time! 😁

Buddy My thought here is that transfer pump ! bench testing is not a reliable test in my mind ! As the engine is not tuning the shaft ,Static the shaft may not leak but turning it and any gear vibration may change your scenario it may leak ! Just sayin! Ya the fact that three machines in a week is suspicious !but at this point I can't connect any dots myself! Hope fully you fine some cracks in the heads but its a long shot! That said was the bore on number 6 injector pitted from rust and not sealing!?

Yup if that spring has any slack either side it will can surge! Unfortunately as you obviously know the breakin is important Once everything is glazed over its hard to correct! The best breakin is hard work! warm the engine to temp And give it all its got loaded! in moderation! bar non the best thing you can do for a new engine or rebuild ! Odiously some common sense is required here however...................

Joe if the engine is NOT CCR the Injector top Oring on the injector can let fuel into the heads Seen this happen as noted ! You may not see it unless you pull the caps! Also running that high of fuel pressure may have compromised The fuel pump Seal new or old! Just sayin!

Your lines are defiantly out of whack And the ambac pumps after warmed and years of use would surge as you described from Governor wear!The other thing that will make them surge is the throttle lever breakover spring being loose and worn!

Is the fuel pump plug still in tact if so try disconnecting it and putting it together a half dozen times and see if this helps your situation it may need re pining ! If it has been hard wired then all bets are off! obviously! If the issue goes away after you do this Either have the plug repinned if you Can find anyone that has the tools OR Hard wire the pump ( Due away with the plug!)

I think your on the right track ! I would check fuel filters then check the fuel pressure should have a minmum 60 80 psi under load

For Now!

E7 Gray Or Mp 7 -8 Red ??? If its a Gray engine you may have to replace the compressor Head! They get carboned up!

Yup you have posted this in the right spot for replies ! So most people here are former or current Employees or owners ! Most guys don't like dealing with deletes as there are so many variables Mac pro is one of several guys here still current and may be able to assist ! I Am Not and have never been A MP engine fan So my Advice is only Observation and hearsay ! So listen up to what he has to say! Others may chine in They may try to help How ever Deleted engines make it hard to work with ! I do have one suggestion and that would be unplug the EGR Valve and see if this changes your situation It will throw a code But if the power gets worse or better it may give you a direction to go!

Bro absolutely no way your making 47 boost! So try and observe if you are trailing grey black smoke while pulling hard ! If you are then start looking for boost leaks you cant keep blindly throwing parts to expensive! Common Failures are Aftercooler cracks The steel tube that goes behind the engine that feeds the air compressor has a hose at either end that can burst! There is a whole bunch of guys on this site that will lend a hand to try and help just keep checking back here! Check for a crack top rh charge air cooler and them hoses I talked about! Others may chime in with other fixes! You needed to have created your own post for this however! when you post here present All of the truck info And All of the stuff you have done so far! the model /year and hp rating really help nail things down We will try to help! Right now I'm confused as to what engine it is no EGR on trucks 2004 and earlier !So what year and model of truck is it! I am currently giving advice for a non EGR Engine! Makes A big difference! If you have an EGR engine it is possible to plug the boost blow off and acheive over 40 psi boost! It sounds like you got the fuel aside from some programing glitch or boost leaks your truck should pull!

Bro so what kind of boost is the truck developing! ? you should be developing 30 psi boost depending on horse power rating! Thinking boost leak here! Trailing smoke pyro running hot!?

OK some is there anyone who can check the codes on the trans? again ! Try a new boost sensor maybe!

trans make model ? Mack trans? If its a Mack trans disconnect the torque limit switch a the rear shift cyl!

check fuel pressure u need 60 plus pounds at full load to run strong if its an ETEC ! You need 15-20 plus ideally 25 if it has a Robert bosch pump! check fuel tank vent change fuel filters if you find below spec fuel psi !

bottom rad should have a drain either on the bottom rad tube or the rad likley the tube! You only need to drain 5 or so gallons of coolant to do this! I f you haven't changed the coolant in a while wouldn't hurt to change it All ! install new 50 /50 coolant! Probably 14 gals or so!

Year And Model ? E7 comes in a few different configurations! Ahh saw the other post ! No special thoughts other than make sure the vent bebe is at the top!

If I has a check engine light on see what the codes are! What trans does it have?

Nice Find Bro! Can't answer your question either ! But ! I always wondered why the up draft carb was invented and used so much! seemed back in the day up draft was the thing to do!

Yes ! Unfortunately you need to finish what you started Or you could end up in a pickle! You need to post your whole story here just deleting the EGR WILL Not fix It if there is another existing problem! Stuck VGT Etc.

Joe the timing changes by year and model I think ? Its mostly emissions related I think ! I noticed over the years as time went on the timing went up on degree a year for the same HP engine up to 22 Just seemed like it anyway!?