2007 Sea ray 280. 4.3mpi Both sets of dry joint exhaust failed at the beginning of the 2014 boating season. Filled both engines with water.
Jeff have you ever heard of Hino another guy at our marina said all the older bayliners with diesels had them in it and that they were built for Chrysler
Oops..... I need to add that if you do have crimp sleeves installed, one end of each hose will need to be a swivel style fitting.
First do a compression check then a spark check.
Check the gear oil for water/ rust or metal shavings.
On each carb is an air
Dave, as you may know, Merc designed the Dry Joint system as a solution to problematic deterioration of the rather thin walls between the main exhaust