EUP broke

[Rick01]

I was driving about 60 mph and lost power. Before I could shut off the engine I could here a slight knocking noise.   After checking I found a EUP broke . Truck is at Mack dealership now.  Will this ruin the cam ?  The dealership has had it two days and say they are diagnose the problem.  2002 RD688S. E7 350 hp.  What do you guys recommend for repairs. Truck has 125k miles but 14,000 hours . Should I do in frame rebuild or just fix what is broken ?  Please help me.  

[mrsmackpaul]

If you know the history you would be the best judge, if it has 14000 its been around the clock

It would of most likely of been rebuilt already

 

Paul 

[fjh]

11 hours ago, Rick01 said:

I was driving about 60 mph and lost power. Before I could shut off the engine I could here a slight knocking noise.   After checking I found a EUP broke . Truck is at Mack dealership now.  Will this ruin the cam ?  The dealership has had it two days and say they are diagnose the problem.  2002 RD688S. E7 350 hp.  What do you guys recommend for repairs. Truck has 125k miles but 14,000 hours . Should I do in frame rebuild or just fix what is broken ?  Please help me.  

It all depends on the extent of the damage! usually the cam and the cam followers are replaced!

[Joey Mack]

why is it taking 2 days to tell if the cam is bad?  it should have taken less than 30 minutes to tell..  Just curious...You came to the right place...  jojo

[Vmac3]

2 days for a visual??

As long as the locating pin for the EUP follower is not broken, then I would just replace what is broken and run the truck. Then see hat happens. Just my 2 cents.

V