New Project Boat

JustJason

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Joined
Aug 27, 2007
Messages
5,321
Re: New Project Boat

Listen Bill. Don wasn't being overly harsh. He's the top dog here. He is closer to your age of 71 than he is to my age of 32, so he's not some hotshot wanna be kid. And he has been wrenchin on boats for longer than most people stay married these days. Sometimes he's grumpy, sometimes he's sweet as sugar, but either way 99% of the time you can take his word as gospel.

Alright Don.... i'm done sayin nice things about you :p

As far as your engine goes. It's stuck. So whatcha gonna do about it. If this was an I/O (sterndrive) the first thing you do is pull the drive to isolate the 2, as the drive can equally stick, and isolate what's sticking and what's not. As for your's, you could pull the tranny, but that would be to much work. If your trying to work the crank back and forth, make sure you take off all the accessory belts, as you do not want to spin the sea waterpump backwords, and a frozen alternator with a tight belt can mislead you to think the engine is stuck.

If the rings are stuck, all you can to is try to put a breaker bar on the balancer and push/pull/hit the bar with a hammer, and see if it will un-stick.
If you can't get it free... you have 3 options.
1. Pull the motor and/or tranny, whichever is easier, and see what spins and what doesn't, and dissasemble accordingly.
2. Buy or see if you can rent a boroscope, and see what the inside of those cylinders look like.
3. Pull the heads... and see what the cylinders look like.
Either way... your looking at a re-power if you can't get the motor free. (unless it was the tranny that grenaded)

If you happen to get the motor spinning. Then get it running. Run it in the driveway off the garden house for 10 or 20 minutes at an idle. Use a mechanic stethoscope and probe the block and listen for anything loose, especially in the bottom end (crank and rod bearings).

If it all sounds good. Change the oil and filter, tow her out to a smaller take (bring paddles or a kicker or a friend just in case) and run the absolute snot out of the engine. Note your maximum RPMS that your getting from the engine... In short, run it like your trying to blow it up. And that means with the drivetrain in gear and the engine under load, DO NOT rev the engine up in neutral. From a slow troll, punch the throttle, does the engine hit a home run or does it miss like a grounder to Bill Buckner??? Run it and hold it at max RPMS for an extended period and see if she maintains a proper WOT.

If it hasn't blown up on you by now. Take it back home, use a stethoscope again to listen for abnormalities. Do a compression check on every cylinder. If it all checks out good, double check your oil for any water and oil level. Do your required maintence and tune up items and go boating. (including probably a full tune and a water pump)

Your odds are 50/50 50/50. You have a 50 percent chance of freeing the motor up. If you do, you have another 50 percent chance of it working without blowing up.

That's really the best advice I can give.
 

Bondo

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Apr 17, 2002
Messages
71,096
Re: New Project Boat

Ayuh,... Great post JJ,....

Bill,...
Don's not being overly Harsh,... It's more like Brutally Honest....

I'm about midway between JJ,+ yourself in age...
I just wanta say,... I truly Hope, I'm still around, with your energy at 71...;)
But,... Unfortunately, Determination doesn't always trump mechanical problems...
Follow JJ's suggestions,+ Maybe she'll break free,+ Run... Maybe not...

Maybe you can load up the cylinders with a Quality penertrating oil,... PB Blaster, Kroil,..??
Anything but WD-40...
 

Bill kubiak

Chief Petty Officer
Joined
Jan 31, 2004
Messages
629
Re: New Project Boat

Thanks guys
update
Got all around the engine as best I could with a really powerful light, all the allen head bolts holding the port exhaust manifold on are rusted away to dust as is 3 or 4 of the bolts on the starboard manifold. I found a foot long crack in the bottom of the port manifold riser. The alternator can be turned by hand. The carb will need a rebuild.
This afternoon a neighbor brought a mechanic friend of his around and guy said he thinks he knows where there is a completly overhauled marine 351 with all the accessories sitting in a shed in little Havana, at least he saw it there a little while ago, apparently it was overhauled and never picked up and the shop got stuck for the job. Gonna let me know Monday what it can be had for. Said the guy that has it is broke and needs money. He said he will pull mine and drop in another one for 200.00 plus any parts like hoses, clamps, etc that need to re replaced.
I saw a few used and running complete motors on craigs list for 500 bucks, a little leary of those unless I could see it run.
Tomorrow for the hell of it we are goona see if we can break it loose, been sitting for 3 days now soaked in mystery oil and pb blaster. What's the worst we can do, hurt ourselves in the process, maybe.
PS. I am a Pilot and an aircraft A&P, been working on cars, boats, outboards since I was a teenager back in the 50's. Got this boat so cheap I can spend some bucks on it and still break even, the trailer alone is worth 1200. if I stop doing stuff I will stop being able to do stuff, so I keep doing these projects, I see other guys my age that have one foot in the grave and the other on a banana peel and that will not be me.
 

Fishermark

Vice Admiral
Joined
Oct 19, 2003
Messages
5,617
Re: New Project Boat

I see other guys my age that have one foot in the grave and the other on a banana peel and that will not be me.

That's why you are still out there enjoying and living a good life. I've seen people "retire" - do nothing - then die. Good to see you out there and living your life! (Of course that doesn't change that you probably need a new engine ;) )
 

Bondo

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Messages
71,096
Re: New Project Boat

and guy said he thinks he knows where there is a completly overhauled marine 351 with all the accessories sitting in a shed in little Havana,

Ayuh,.... Doors are opening All around you Bill,....
Those ole Fords haven't seen Marine production for a Long time now,...
I hope you can find a good strong runner for your barge,...
Sounds like a pretty Cool boat...

With your experince,.. You knew all along that We were tellin' ya the Truth about the situation,....;)
 

Bill kubiak

Chief Petty Officer
Joined
Jan 31, 2004
Messages
629
Re: New Project Boat

What do think it would cost to overhaul that motor, if the worst comes to pass
 

proshadetree

Lieutenant Commander
Joined
Jul 19, 2008
Messages
1,887
Re: New Project Boat

pull the starter and use a prybar, break it loose and make it run. I have done sevral old cars and boats that way and they ran for years.
 

Bill kubiak

Chief Petty Officer
Joined
Jan 31, 2004
Messages
629
Re: New Project Boat

OK ok You guys seem to be right on the ball
Big crack in the port exhaust riser and almost all the allen head bolts holding the exhaust manifold are rusted to dust
We have decided to at least to pull the top of the engine apart and have a look.
How can I tell what transmission is attached?
 

Bondo

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Apr 17, 2002
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71,096
Re: New Project Boat

How can I tell what transmission is attached?

Ayuh,... Look for a tag, casting #s, or post a few pictures,...
 

Bill kubiak

Chief Petty Officer
Joined
Jan 31, 2004
Messages
629
Re: New Project Boat

Yesterday we managed to pull off 8 of the sixteen allen head bolts holding the exhaust manifold on. Looks like we gotts grind off whats left of the heads on the remaining 8 bolts before we can get that exhaust manifold off. It is now raining and it Looks like rain for the next few days.

Do these transmissions only work when the engine is spinning and building up oil pressure? The reason I ask is that I can spin the prop shaft by hand no matter what gear it is in.
 

Fishermark

Vice Admiral
Joined
Oct 19, 2003
Messages
5,617
Re: New Project Boat

Can't help on the transmission - never messed with straight inboards.

On the manifold - if it is no good, you may be able to bust it up in pieces to remove it. A lot easier than granding off all the bolts, etc.
 

Bondo

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Apr 17, 2002
Messages
71,096
Re: New Project Boat

On the manifold - if it is no good, you may be able to bust it up in pieces to remove it. A lot easier than granding off all the bolts, etc.

Ayuh,... They're cracked,+ junk anyways,... A few well placed Wacks with a BFHammer is usually all it takes...
Wear eye protection though...
 

Bill kubiak

Chief Petty Officer
Joined
Jan 31, 2004
Messages
629
Re: New Project Boat

I never did either but this boat only draws 16 inchs, goes 40 mph. will handle 6 guys without crowding, and can run right over the shallows, the prop is about 90% up in the tunnel and the hull is bulletproof. heavy, yes, smooth ride in rough water, Oh yes, Dry in a big chop, very dry, gets about the same or better fuel mileage then a 200hp 4 stroke outboard, the Downside is it is very old and does not look as cool as the new boats, but if you ever rode in an old caddy compared the ride in the new ones you will know what I mean, It goes right thru waves, does not bounce over them and glides along in a chop.
Summer is coming and my fishing trigger finger is itchy,
 
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