Engine which has been disassembled, cleaned, inspected, repaired as necessary
Approved allowable wear fits and tolerances that a new limit part may deteriorate to and still be a useable component. This may also be accomplished using standard and approved undersized and oversized tolerances.
A NEW ENGINE is an engine that has been manufactured from all new parts and tested by an approved manufacturer. The engine will have no operating history except for test cell time when received. No approved manufacturer can approve another entity to manufacture or assemble a NEW ENGINE.
An OVERHAULED ENGINE is an engine which has been disassembled, cleaned, inspected, repaired as necessary and tested. The engine may be OVERHAULED to NEW LIMITS or SERVICE LIMITS and still be considered approved OVERHAUL. The engine's previous operating history is maintained and it is returned to you with zero time since major OVERHAUL and a total time since new that is the same as before the OVERHAUL.