2004 mack

[irtouched]

I have a mack with aset motor 

In may 2023 I had inframe

1 week after inframe had code for egr valve. Took back they replaced egr valve 2200. I kept getting egr codes off and on  I have had rough running issues .  And an imbalance I've replaced eup's, Inj's. Flywheel, damper. In 2024  I noticed oil pressure lower than normal. So one time egr code came up I took oil line off egr started truck and it took 20-30 sec. For oil to come out and not a quick flow, so I scheduled  to go in shop. But before I could get in the shop I lost #4 lifters .

When shop diagnostics oil issue they found #1&3 top main bearings installed in wrong place. I am trying to find out i oil issue on accessory

Side caused the lifters to go bad

They replaced cam, lifters oil pump, oil cooler rods & mains

Also when i showed the bearings to mack dealer they said when infram they did noy clean new bearings or the caps due to wear spots  

Will this affect Any other componets  all help is appreciated 

 

[Joey Mack]

Sounds like crap work to me.. 

[Mackpro]

In loss of oil pressure or low oil pressure the turbocharger seems to suffer first. On the  early ASET AC engines in late 2003 and early 2004 , the turbo and EGR valve shared an oil supply line from the oil filter stand. An update recall had us run a dedicated oil line from the bottom RH side of the engine block to the EGR valve. And the turbo got a new oil supply line as well. If yours was not updated to the new design, the turbo and EGR valve were fighting for oil supply for sure .