I'm new here. 23' Tsunami (2) i/o ---> (1 ) i/o ???

[abl1111]

Hello all. I am new to your great site. I have a few questions, and I know I'm in the right place. I am looking to purchase a mid 70's 23' Tsunami w/ (2)4 cyl i/o's. I want to r/r these oldies and repower w/ a single 5.7 litre, bravo package.

How much work is involved in sealing the (2) existing i/o holes ?

Will the present motor mounts be usable for the single i/o, and if not what must be done ?

If the transom is shot, how hard is it to tear out the old transom and put in a new one ?

What is the best method to reduce the oversized hole in the floor, via fiberglass/wood when I reduce the size of the engine cover ?

Has anyone done this job, I would be interested in speaking to you.

What are some of the weak areas of these boats that I should look into when I survey her myself ?

Oh, and lastly - what is the approx cost to do this job ( I plan on doing ALL the work myself )

Thank you

- Alan

[bobfish21]

abl,
hope my email helped out;as to your repower,a single i/o to single i/o replacement would be the easiest and most cst effective,unless yu have your eye on a twin i/olready,it might make more sense to find a single and do the repower.As i mntioned,my '74 23' tsunami was repowered with a 260 efi alfa,and im very happy with the performance ad economy.As for cost,transom and engine beds replacement should run about 4000 to 5000(cost me 4000 in '99)motor and drive purchase and installation about 11000,not including any wiring upgrades or guage replacement.As you can see ,the numbers add up quickly!However when you consider that a viable replacementsuch as a 24 albemarle cuddy w/ single i/o will run at least 50,000 seems worth it to me-at least thats how i rationalized spending 25,000 fixing up a 30 year old boat!
good luck,any questions,drop me a line
bobfish21

[captbone]

I say rip the whole boat apart, redo it correctly and put a single yanmar or cummings i/o hooked to a bravo 2 in it. You will have a boat that will last you a lifetime.