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Double flanged hub? Or the stud has a flange on it ? I have seen both setups! You will likely have to remove the hub to get the drum off to remove the studs !

Thanx for Askin Joey! Yup finished up this morning I got six hours of pottering on this project including the screw up with the first Cyls! My eager apprentice and my self managed to get it bled down with one bleeder screw couldn't get to the right hand bleeder! Theres a jumper between the two cyls with a check valves in them had trouble getting the air out of that and resetting the rods on the clys so the oil wasn't trapped But once we got those two issues worked out things work as they should!😁 Stops on a dime now! Didn't realize how bad it stopped before till I got both sides working!🙄 Even took time to replace the fan belt while the machine was down !was dreading that job too ! The drive coupler was seized to the pump managed to get that with my air hammer and some help from a neighbor on the end of a long pointy bar!🤣The belt was almost as much as the cylinders up here ! 80 bucks! 140 for two Masters!

The problem is lack of experience unfortunately the books can’t replace experience! Been there done that multiple times helps speed things up! Some one always becomes a Guinea pig at some point! These guys are start over where us guys have been already!on the ac aset these guys are reading from a book no real world experience! Rattling off a bunch of BS they know zero about! The MP engines had a learning curve the new guys coming along are learning them and their quirks some guys just keep following the computer screen some will innovate and come up with solutions! An quicker ways to get the job done!

Experience based diagnostics ! Multiple codes for all six usually evolved into a fuel transfer pump issue ! Low fuel pressure! Not always but most times!

Well At the very least you have learned where not to take a truck for repairs! ANY TRUCK! Can't imagine what they would have told you had you brought them a Pete with a Cat or Cummins engine in it for repairs!🙄May be they would have you change out the Air in the Tires or something@ 150 an hour ! Sorry this Happened to you! Not all Mack dealers Are like this How ever now a days its hard to find reputable people to work ! You'll see multiple complaints on this site By a lot of us on this subject! Good luck with your truck hunting Bro!

The whole deal stinks of BS ! Volvo brain! They are trying to baffle you with BS ! Just sayin! Don’t know what else to say! I have nothing good to say so I won’t!

AI B.S. Click Bait!

HA Ha ! I grappled on to several wheels once in pack rat Mode ! They got made into a saw mill! 🤣

There are lots of tsb on this subject ! None on F**kn injector Cups On E7! Granted the Volvo turds screwed up the service bulletins like they did to the parts system ! probably hid them some place! Now I think on it these guys where his truck is fit right in !😡

I'm Sad that there are Shops that impersonate being Mack dealers some times! but that goes with this generation of people that have No integrity No concept of pride in workmanship ! Is Just a sad state of affairs ! Depressing to See!

Get The Truck out of that shop ! The more I read the more I believe you need to RUN! THEY ARE CLUE LESS! and full of BS!

as Joey Said ! ok... too much to absorb.. stop them, and pull the truck home.. the injector cups on those engines dont crack. I have seen over the whole time I worked on these! injector(sleeves) not cups leak MAYBE twice and never internal !And apparently you have Two leaking NOPE Don't think so ! Get the truck out of that shop! They are not real Mack oriented they got Volvo brain! I have seen where the wrong sleeve was installed in the wrong head coolant leaked out the injector line! These can be replaced in frame IF they are leaking! But they aren't! Injection lines leak yup Fuel ! Tow the truck it would be wise to get the hell out of there tow it to joeys if you have to It will be a way cheaper and it would get fixed proper! And another thing I would suggest if you have disturbed the rocker assemblies replace the bolts there were issues at one time with these and you want to start fresh there ! Joey will likely get get you talked thru the coolant push thing here! another embellishment I read was High liners That never happened either! low liners in the early engines yup ! but not on AI or AC Get the truck out of there! this engine wasn't One of Macks stellar builds but it didn't have any injector sleeve issues to speak of! They were guilty of trying to make it Eat Its own shit just like all the rest due to the emission rules! extra heat to deal with bla bla bla !

Yup Joey will take that 😂

Injector orings was another one I used to horde them when V8s were popular! We did head gaskets by the dozen for several years till they finally got a good handle on the gasket issue! 😁 I tend to pack rat stuff anyway, Might need that some day ! You know!🙄

its hard to believe anything you see electronically these days with this AI Crap going on! They tell you one thing and the exact opposite is going on or worse! This post could be fake for all I know! 😡

I used to squirrel away various parts in my tool box bottom drawer that our parts guys seemed to have a hard time getting saving them from rebuild kits ect, Trunnion inner washers was a common save as not every job was worth using them!

yup noticed after i posted ! 🤣

amen bro absolutely no clue! No work ethic ! May have to make your own offset key 😂! Volvo Turds want the old stuff to die so they can sell more junk to people!

Piston cooling probably started as they were thinking on adding more ponys to the build, morphing up to the 237- 285- 315 I know when they went to 350 they added steel webs between the main caps ! Just before they started using the 4 valve head!

If you suspect the shut down relay swap it with another relay in the batch there remember the one you use so you can replace it !

If there are wires for the torque limit switch they will be towards the back of the trans likely tied back in the loom two wires! if it has a mack trans the switch is located on the back Cylinder At the top! Not sure if they use it on that trans how ever the the wiring will likly still be there ! I have NEVER seen a Spicer trans in that model not sayin it isn't possible usually Eaton fuller Or Mack! Spicer did clone a Fuller trans at one point so anything is possible!

Did you try what Joe h posted ? maybe you should?

wouldn't want to pay a middle man ! Me and Joey want to clean up! Make the big Bucks! He wants to retire ! 😁

Criminal ! one 7018 welding rod 50 cents / one 6 inch by six inch piece of 1/4 inch plexi maybe 3 dollars Plus 3 dollar 100% mark up ! Worth 6 bucks! In materials Bit of sweat equity for etching ! 50 dollars would be reasonable ! $300 Not so much! We should go into business making these we could clean up sell for 99.99 ! You could retire from building engines! Become a door to door piston squirter aimer salesman! 🤣

Yup its not running long enough to even build O/P ! not an O/P or Low water issue! Do the check engine procedure as joe explains there!👍 60 seconds or so would indicate a sensor ! Note I have seen stuck engine brake sols cause this on MP engines I know that this is E7 how ever don't rule out anything! Also check the big round plug at the fuel pump un plug and replug it together several times it may have loose pins!