2011 Navistar International DuraStar DT570 engine.

[edgart]

Good day SR.

I’m attaching the additional photos supplied by the “specialist” shop.

Further background:

Over the last three years the engine has undergone two in-frame overhauls.

On both occasions the dealership diagnosed overheating due to a cooling-system failure. Hoses, radiator, water pump and surge tank were inspected and showed no issues.

Something fundamental is still wrong with this engine, and the dealer hasn’t located the root cause. I therefore rebuilt it again and put it up for sale, but the same failure occurred with zero miles driven.

During the sale process, each prospective buyer was fully briefed on the engine’s history and given copies of the work orders and invoices so they could make an informed decision; there was no intent to mislead anyone