84 fish nautique information

Hi I am a new fish nautique owner seeking information on my boat. Powered by a 5.7 350cu . My question is what size shaft and what propeller was original equipment. I am wanting to get rid of some vibration i suspect is from a worn cutlass bearing. Thanks for any info.

John,
Welcome to CCfan. Pictures are welcome!

Here's the link to the hardware.

Regarding the vibration, besides the cutlass, check you shaft and get the prop checked. The shaft should not run out anymore that .003". When the prop comes back, make sure you lap it back onto the shaft.

Thank for the help

You snagged that one from PC heh? I had my eye on that listing. Need to replace my previous offshore boat but really holding out for a Shamrock.

Really thinking about a new shaft prop and bearing just to be as smooth as possibly. Just downsized from a 42ft and love the fact that the parts for this boat are available and reasonable. The simplicity in design is another thing i really like about this boat.

What is the advantage.   I assume the od of the shaft is the larger than the 1 1/8 dia.

I guess the temptation for me is to tear apart and replace anything suspect. I am not naturally that way . Just have been staring at the back of a boat us boat more than i would care to think about without the recurring nightmares to start up.
Then again i bought this for my sons to use fishing so i will probably replace the drive system soon enough anyway since they are masters of destruction.
Im not paranoid but i have seatow, boat us, towing through my ins co. And a tow strap.

eyefish wrote: I guess the temptation for me is to tear apart and replace anything suspect. I am not naturally that way . Just have been staring at the back of a boat us boat more than i would care to think about without the recurring nightmares to start up. Then again i bought this for my sons to use fishing so i will probably replace the drive system soon enough anyway since they are masters of destruction. Im not paranoid but i have seatow, boat us, towing through my ins co. And a tow strap.

I understand the worry factor, especially being out on the open ocean. However, if you get the motor set up and running right, you should not have a problem. In most cases the Fish Nautique has the EXACT same motor that is in about a bazillion Ski Nautique ski boats, and they fire up and run flawlessly for years and years and years. Some do that with a lot of neglect and no maintenance by their owners. These engines are bullet proof.

Same with the drive-train. With minimal care the transmission will run forever. It is EXTREMELY rare to see any kind of failure with the drive shaft, shaft log, strut or rudder (unless of course you hit something or run aground). Again their are a couple of simple maintenance items that if you take care of it will run forever.

As testament, my Dad has a 1964 Ski Nautique with a Y-Block 312 Ford Interceptor marine conversion, that has run like a champ for 50+ years! Remember there were a lot fewer Ford Y-Blocks produced then Ford 351 motors.

EDIT: Okay so I see you have the Chevy 350. Still a solid engine, way more produced then the Y-Blocks...

A prop shop should be able to dial indicate your current prop shaft to measure the runout.   It might be OK as is. A 1-1/8 ARE won't be cheap.

i'm not positive on that engines exact numbers but it should be more than that, do you know what wheel you are running? I think those came with a 14x10.
My fish has the ford motor and I try and cruise about 3200 RPM which when i'm fully loaded with fuel and gear its barely on plane at that RPM, so its usually more like upper 3s to 4000.
I believe i am propped wrong though. So dont base anything off that. Mine has a 13x9, been trying to find a 14x10 to bolt up and get some numbers without having to buy a new one but they are not really around used.
You said the engine was recently replaced, was it rebuilt or replaced? and what was done and what was used or changed? get some pictures of the motor and gear.

You should Post some more pictures!

edit, pbrain thanks for the correction on that i don't even know what i was thinking. I'm a machinist i should know this crap haha. *

when i first go mine it would not rev more than 3k and i couldnt even get on plane, it was a multitude of things working against each other. I fixed everything in this order.
FIRST of all the trim tabs were not working and I had a full load of fuel and ice. which on a good day is tough without use of trim tabs.
second my manifold/riser setup was so wrong it was locking up a LOT of HP. bought factory stuff.
third, my timing,wrong,
fourth my carb metering plates were corroded so bad i can't believe it even ran.
5th the intake was off a pickup truck or something from when they replaced the top end, i replaced with a edelbrock performer.
6th it had eccell wires in it. so i threw those out and bought a set of oems.
7th it was overheating bad, had the wrong t stat in it.
then the prop which i;m still ignoring for the time being.

I'm not saying you have these problems but i'm more or less pointing out you can have a lot of different things that can cause this issue rather than one single item that will fix all your problems.
Buy a used boat, buy someones untold problems. there is no way around that truth no matter how much you spend.
heck you buy a new boat and your buying unforeseen problems so there is no happy ground.

Yes i think 60 or 70 gal

Running the acme #524 and it's a 87

mako 236 thread on this subject http://www.classicmako.com/forum/topic.asp?TOPIC_ID=27978

I don't think it will lug your engine at all but I don't know much about the prop gaurd and how much that hurts performance.