Jet boat...

tripped38

Well-Known Member
Joined
Jul 9, 2008
Location
MI
Sentimental story to follow... not much of a build thread yet. Or the slowest build thread ever

My grandfather passed away in April and my grandmother has been clearing house to say. He was a body man and painter for 40 Yeats and taught the welding classes at the local community college. He was the kind of man who could make anything run if you gave him the idea.

From my childhood there has always been the same boat in the family. My grandfathers jet boat. This is the boat I learned to ski behind and have more memories of him then I care to admit.

I've always told my grandmother I didn't want the boat to leave the family. Well it hasn't left the family. She signed the title over to me last week while I was in MI for my sisters wedding.

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The boat is a 1973 Kona. 18 ft socal drag boat. The plan is to keep it original as I can. It has the original gauges and period correct interior. I plan on cleaning up the wiring and chasing some gremlins. The most has always had a hesitation from the carb that I hope to sort out. Other then that its going to be a gas guzzling cruiser.

I have the original paper work from when my grandfather bought it. When he got it there was no motor but the documents showed this boat came from the factory with a Keith black built 392 hemi blower motor. He spent 2 years trying to find one before he gave up and did the standard swap at the time. The boat has a 455 olds motor with a marine cam and slightly milled heads and some balancing work done. The boat in its hay day would run mid 50s... not scary fast but enough to blast a 150 ft rooster tail.

More pictures cause I am super excited about this!

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So the boat had not been in the water for the past five years. My grandfather's health wouldn't allow it and we respected that it was his boat and it wouldn't have been the same with out him.

Well I felt like in memory of my grandfather I needed to see if I could get the boat started and water tested. Lots of tinkering I got it to fire. Headed to a little local lake the next morning with my brother and my mother to test it out.

It floats and goes! Left the key to mess with the jetovator or trim on the pump and the battery died. I suppose that's the welcome to boat ownership. The battery is probably 15 yrs old so I will accept it!

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Lerk that thing is awesome. Gimme a shout if you ever need help with it. A good friend of mine fully restored a Kona a few years back and he was up on LKN so I could get in touch with him to see if he knows where any parts or people with parts for that vintage would be laying around.
 
I want a jet boat bad. I can't justify it to the wife. She wants a boat but wants a ski boat. I want to see video of that thing on the water and someone skiing behind it
 
Stretch, I'll get up with you.

As far as a family boat and skiing that probably won't happen any more. My parents have a direct drive ski boat for skiing needs.

Don't get me wrong we did it but all the gear stayed on the beach. Storage is not happening on this boat.



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very cool lines! What lake is that at? I used to see a boat like that in Hickory a long time ago! Cawtawba river at the granparents house.
 
Little update to this project. My uncle located the original bell housing and matching pump for the original motor. It's for a 352? Early hemi. Probably not a cost effective motor option but something for the future.

Also my grandmother has been cleaning out the office and has put together a binder of all the paper work and articles and bills my grandfather had on this.
I won't touch it till June when I slip to MI to prep it for the July 4th week vacation.

But this project hasn't died.
 
Imagine Imagine a barn with a boat under a tarp. A bunch of vintage beach cruiser bikes on the walls and a 73 corvette gasser drag car project and a lot of old school parts.

My grandfather was a body man and a tinkerer of anything with a motor. He liked British stuff and fast stuff. My brother ended up with a 64 triumph Bonneville special. One of the last bikes mu grandfather painted
 
That is a sweet boat. My GP always had jet boats growing up on lake MI, some of my best memories. Think he almost lost me overboard a few times.
 
flat bottom Jetboats--not the fastest on the lake but bygod the coolest. They always have the most off the wall engine setups too...
 
Went to MI for father's day. Spent Saturday in the shop with dad going over it. Changed all the fluids in it.

Trailer got love too. Went through all of it. Hubs and wiring.
 
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It was a fun day working with dad on it. Relaxing knowing if it didn't get done it was ok.

End of the day we dragged it out of the barn and it fired right up. 2 weeks it will be in the water making roost
 

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Very cool boat, that 455 is a very common motor for these boats. I have been a vapid fan of all Cali jet boats since my neighbor took me for a wide open ride in his 1975 Hallet. That Kona was a high quality boat back in the day. Enjoy it!
 
Hallets are very cool. Yeah the 455 is common. It runs fine. Upper 50s is the hope. We'll see I'm fat and this is a full interior boat.
 
For now it will stay in MI. I have indoor storage there and without a truck to tow it, it just makes more sense to leave it.
 
My brother flew in from AZ for the week and we have been running this boat as much as the weather would let us.

GPS on the boat with 3 people and full tanks of fuel was 50 mph. Not fast... but not boring either. There's more in it but for now it's not changing.
 
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A few pictures from the week.

Boat has great oil pressure and the motor was able to turn 5200 rpms.
 

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