Evinrude 115Hp V4 Project Rebuild / Repowering a Fourwinns Fling Turbo jet boat

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
At a job interview I was asked if I knew how to use the tools on a table.----After taking just 1 measurement with a 1-2 " micrometer , I asked interviewer if he wanted more done.-----He said --" good enough " young man.-----When you come from a shop where tolerances of + /- 0.00002 can be held it was all easy for me.
Lol I probably wouldn’t have got the job :(
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
27,463
Blunt statement.------There have been no surprises for me in your struggle with this project.-----I think I suggested you would find a corroded mess in post #7
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
Ok so where do i go from here ? I need a plan ........ I want to put this boat back together the way it is supposed to be and to the best of my abilities. I can not spend a fortune on this as this is a WANT and not a NEED so it needs to be cost effective. It does not need to be on the water this summer or next.

I think ?
Powerhead
- Detailed inspection and cleaning of the BLOCK
- Inspect motor plate and muffler for freezing damage
- hone cylinders (will have help from mechanic friend)
Boat
- Pull pump inspect
- Figure out where leak is between pump and hull

Start to spend money
- crank
- bearings
- gasket kit
 
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Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
i am guessing my measurements were off because i was using the rear ratchet for some and not for others so this was giving me a different tightness ?

I am into this for about $100 so far
bearings for trailer $60
used parts $25
800 grit sandpaper $?

but I am having a blast trying to make something from nothing and learning lots along the way :)
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
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Local Guy has this listed with a parts motor says it’s a 2000
Google thinks it’s a 93-98 due to the stickers

What is the difference in ocean pro and non ?
 

racerone

Supreme Mariner
Joined
Dec 28, 2013
Messages
27,463
Believing what google tells you might be a mistake sometimes !!----I think I will step aside now as well.
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
Believing what google tells you might be a mistake sometimes !!----I think I will step aside now as well.

I am not sure what you mean by your comment of “step aside now” but I do appreciate your help, this is comming from a guy who knows zero about outboards and who has to research everything. I am trying to learn along the way in this wrenching adventure.
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
so i cleaned the rods, bearings, piston pins last night .... i sorted it to good, minor imperfection and messed up.
I will get
4 good pistons
1 good rod
4 good big end bearings
1 good piston pin
I did not sort out the needle bearings
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
@Faztbullet thanks for the info, i was talking to this guy about his parts motor and almost pulled the trigger

the more i look into this the more i feel like i should just buy a full running outboard motor to re power it ..........
 

Scott Danforth

Grumpy old guy who plays with boats
Joined
Jul 23, 2011
Messages
37,046
You should look at reman'd power heads first. Local place here has them about $1600 with new cranks, new pistons, etc
 

Jon NL

Seaman
Joined
Oct 27, 2021
Messages
74
So where am I ?

I have been hardcore looking for parts or a donor motor

Soooooo

older 115hp have a different crank then say the 92 - 97 (i have one that came in the box of parts I bought, I will lay them side by side to measure the difference in the end and report back)

can the older motor with the longer crank be used on the turbojet ?

the spline is the same

If i find a older motor will the crank bottom out before the motor plate sits on the mounts ? wonder if it is possible to shim up the mounts ?



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