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so if you hook up the Emerg line and charge it leave the service line off (disconected) is there air feeding back up the trailer service line ????

Joey please no offence but your over thinking it ! Put pump on so the dowel pin is aligned then time as discribed your not going to be off enough to burn up a parade truck your fussing 🙏 just assume the pump shop has done there job the pump cam is keyed this will turn out fine you got the skills!👍

Yup You got this bro! no doubt in my mind!

So You do have the tang drive pump ! do you got all the bits for that? drive plate ect! I have had little to no experience with this set up on a 6 only the v eight! so halic is the man here! the plug on the housing peek hole may need to come out!in order to stuff the pump on! On the v eight it had a roll pin to establish the no 1!

The bolts are usually brass! quick and easy way is with a long chisel and a hammer!knock the nuts off!

Btdt box of parts make it run!

I can’t swear to it how ever if the part came off the engine should fit back on!

Yup I think you’re ok bro ! The gasket change was much earlier! I believe! Use the gasket that doesn’t cover any holes should be fine!

Correct are there any other symptoms you’re not saying? No accusations intended! Injector or eup orings may have been damaged on installation! The pan idea is a sound one! Part’s canon ain’t working well!leave the pan off till your done with the repair!test your work!

I would like to see a picture of your shoes I am curious because Mack at one time made their own stuff!also factory brake lining is historically hard ! It eats drums for breakfast!my bet is your drums will be over the wear limit! also the afore mentioned driver can make all the difference! In my final years at the truck shop I I mainly did truck inspections I had fleet customer that brought trucks to the shop he had bought three new western star trucks he had one driver that used I assume his trailer brakes all the time! The paint was still on the drums after three years and 200000 kms so they are out there!Just few and far between!

Absolutely not the shop had one me never used it!11/8 wrench my thumb and a screw driver! We also had the high pressure timer only used that a couple of times to labour intensive! I like quick and easy! Blo time for me mostly cause I was usually some where in timbuckto and just had to get it done!

Teacher’s assistant will add a suggestion! I always try to Aline the doweled splines with the out side mounting bolt and the spline cutout with the bolt hole on the pump housing! Also the big plug there was used in conjunction with the tang drive it was eventually done away with soon after the tang drive was deleted! The fiber drive I believe was introduced to quiet things down ! Same as it was on the compresor! Note! I have seen one of these break before should always check them for cracks on the back side! you pump shop likly did that !The coupler is keyed on that pump Robert Bosch not keyed! That is when you could use the jig! It can also be done on the engine with out the jig it was just another cash grab essential tool. Much like the lash tool for the dyna yard! Improvise folks!

Any time bro ! Just message me if you run into grief! All gooder happy to help!Also my self I like to blow time it’s a lot less messy! Same process just have to make a hose to connect to the inlet blo on it till you feel it stop a little fuel on the outlet you watch the for the bubbling to stop and your good to go!🙄

Joey I added to the post! That’s on the engine yes double check your set by backing up the instant the flow stops is port closing! The coupling drive should be doweled and a tooth notched out for it!

Joey check it first ! remove no 1 delivery valve re assemble without the spring and valve snug the nut set engine close to the timing mark in engine rotation pump the primer once fuel is flowing turn the engine till fuel stops flowing at the no 1 line outlet where it stops is where its timed! If you need to change it set the engine on the timing mark loosen the slotted bolts on the pump gear and turn the pump shaft with the same procedure in engine rotation when the flo stops it’s where you need to be!