Couple newbie questions...

[LRT1549]

(01-17-2021 )Kc0stp Wrote:  Fuel pump and head were replaced with overhaul (performed by kenworth), clutch was replaced since engine was out as preventative maintenance. All I've got is parts list so not sure on procedure they followed for overhaul but I'll probably end up replacing the fuel pump over the summer again just to play it safe.

Right there "Performed by Kenworth" those words answer that question... So No you counter bores were not touched unless one was messed up, and in that event they were set between 7 and 9 and most defiantly NOT 13 or 14.

Suggest you VERY closely study that parts list because when the dealers do a rebuild they ONLY change whats "OUT OF SPEC" and quite frankly "SPEC" is a 300K engine rebuild..