Occupation: truck repair
Interests: fast boats/porches
Boat name: bernico cat
Boat make: bernico 26 cat 2x 2,5,s
Engines: merc,s 2,5 EFI,s
Cruising area: ijselmeer
Join Date: Dec 2005
The crankshaft in a 2,4 with oil injection ,or a crank from a 2,5 with oil inj is the same crank,you can swap them if you want,only the bearings have a bigger diameter in the 2,5 block.
Most problems were piston detonation,or a oil pump failure.
Then the problem start into the cilinder,and eventually broke a rod and as a resut the crank was damaged.
In some cases a rod bolt would break,with a lot block damage as a result.
Did you or your dealer found the actual problem ?