Steam Packet says repairs were made overnight
The Steam Packet says a failed hydraulic fitting was one of the reasons for a delay in last night's Manannan sailing from Liverpool.
Assistance was needed and it took some time for the vessel to berth safely in Douglas Harbour.
It was among a number of factors that delayed the boat.
In a statement issued by the Steam Packet, it says the failed part meant one of the engines could not be used for manoeuvring purposes - despite the engine itself being fully functional.
This - combined with strong, gusting winds and a French warship moored on the adjacent berth - meant the Captain required help from a tug.
The firm has apologised to passengers for the time the problem added on to the journey.
It's assured customers the failed part was replaced overnight ahead of this morning's sailing.