The Steam Packet Company says the Ben my Chree won't return to the Island until the end of this month.
The announcement comes after scheduled maintenance found stern tube bearings need specialist repairs.
The company says the Manannan will provide daytime passenger services, with the MV Arrow continuing its overnight freight services.
Its reservations team will contact any passengers affected by the delay.
TT course shut for hill climb
A section of the TT course is shut today.
Man denies stealing equipment from boat
A man has appeared in court by live link from his bed to deny charges of theft and a public order offence.
Hospitality tax cuts not feasible, says chief minister
Chief Minister Alf Cannan says tax cuts requested by the hospitality industry have to take into account the costs of government services.
Flour mill wants to replace rotting windows
Laxey's historic flour mill has applied to replace windows and doors.
Restaurant worker awarded £1,800 by tribunal
A hospitality worker has won an employment tribunal against a restaurant that's gone into liquidation.
Police dog dies
A well-known police dog has died.
Man admits having knife at Sea Terminal
A traveller was found carrying a credit card knife while trying to board a ferry to the UK, a court's heard.
Animal care guides to be considered by Tynwald
New codes of practice for looking after pets look set to be passed by Tynwald next month.
