Tohatsu 9.8 misfortune

[pro-crastinator]

I have a 2015 Tohatsu 9.8 that has a thrown rod. (hole in crankcase, looking at scarred crank and rod)
Running motor, capsized boat, water injested, boom.

What are the differences in the 8hp model?
Carb is different but are the "mechanicals" the exact same?

Thanks

 

[pvanv]

Only difference between the MFS 8 and 9.8 is the carb.

 

[Sea Rider]

Yep, and the cowl number LOL!!

Happy Boating

 

[pro-crastinator]

So I'm looking for ideas regarding the locating of the block/crank/pistons/valvetrain assembly.
If you guys have any thoughts - it would be extremely appreciated.

options I have covered:
new assembly: $1400 block, crank, pistons, all put together
entire new 9.8: $1900 brand spanking new motor, I will have my junker for a parts source.
entire new 8: $1700

I spoke to a Tohatsu dealer sales desk and he cautioned the idea of an 8hp block that would be "overstressed" (exact word he used)
Through my vast experience, I have found that a great many people really arnt that bright. (typo intended)
The part mumbers are identical for the blocks. enuf said.

 

[Sea Rider]

Better ask what did the dealer meant by that wording ? A used overstressed block due to engine running at lug side or severely overheated could end being cracked while boating. You can save at least $ 200 by swaping your 9.8 carb on a brand 8.0 HP if going that route. Even selling your new 8.0 carb on craiglist for at least $ 50.00.

Happy Boating

 

[pro-crastinator]

he cautioned the idea of an 8hp block that would be "overstressed" (exact word he used)

I pressed him on his statement and he immediately passed on the deeper questions. "you'll have to talk to the parts department"
Theres really no question in my mind that he didnt really know what he was talking about. He was speaking off the cuff.

I looked at the part numbers for ther block on the 9.8 and the 8 and they were identical. Its the same thing in both motors.
Same pistons, rings, rods, crank.

Thanks for the feedback Sea Rider.
I just wanted to bounce it off the wall and pick the brain of this informed group.