Webster's Revised Unabridged Dictionary · 1913

Overhaul

Overhaul , transitive verb

1.
To haul or drag over; hence, to turn over for examination; to inspect; to examine thoroughly with a view to corrections or repairs.
2.
(Nautical) To gain upon in a chase; to overtake.
3.
To repair thoroughly; to make repairs on; -- usually implying major repairs and perhaps modifying improvements.
Collocations (2)
To overhaul a tackle , to pull on the leading parts so as to separate the blocks.
To overhaul running rigging , to keep it clear, and see that no hitch occurs.

Overhaul , noun

1.
A strict examination with a view to correction or repairs.
2.
A major repair or a revision for the purpose of improvement.

Also: Overhauling