Bayliners and searays under 25' are both made in the same facility. Being a 2015 there should be stringer tubs and glue (no wood in the stringers)
The foam is injected between the stringer tubs.
Post pictures of the area in question
If you have a problem with the block and heads, you follow the sound of the escaping air.
Remember air tests must have all the water removed from the water jacket.
However I doubt you have a water jacket issue, as the port being rusted is from water entering the exhaust
you should see my overseas shipments thru Fed-Ex...29 out of 31 shipments required no less than 4 hours of phone calls to get the package to get released from Memphis.
first, what year, make and model of the boat. some boats are notorious for propensity to rot
second, usually a core sample of the foam from a flotation area or a test drill or two into the substrate of the stringers or transom.
if the floor is soft, the transom and stringers are gone.
post a...
did the mechanic clean the oil strainer between the transmission and lower unit? did the mechanic pull the whole drive apart to clean out the debris?
Volvos have a great oiling system, but any damage to a bearing or gear gets pumped thru the whole thing. so any bearing failure requires the...
I will second the what engine are you thinking
swapping from a 3.0 to a 4.3 or 5.0 or 5.7 can be done. however needs to have a bunch of other parts swapped as well.
heading to a junk yard to buy any run-of-the-mill motor wont work. it has to be a marinized motor.