I Want To Cry
 

Ok so monday evening I dunked my race boat for an after work cruise for dinner....I work alot so this is only the second time the boats been out this year but the first day 3 weeks ago ran excellent although i start the boat once a week or so on the hose

first a little info on the motors 365 small blocks with wiend blowers, dual carbs, stainless exhaust

here we go. I was running about 3,000 rpm into a slight turn and the "high side" motor shut down and i felt the boat shimmy a bit. I am a gauge looker always looking at them. when i felt the loss it still had oil pressure and the motor was not running hot at all. I throttled down and opened the hatch before re fire. there was no signs of failure or no indication via noise, smell, extra parts. so i decided to refire and the motor was locked up you could see the crank try but nothing, no spin. Milked it home on one motor.

Next day....... I checked the oil(clear, no water or metal), pulled the plugs(great burn no metal or water) tried to fire and still locked with the plugs out, pulled the drive and that was fine, motor still locked, tried a pry bar and its bound up....


any ideas before i have a complete melt down

thank you in advance:traurig001::traurig001::traurig001:

probably a long shot but try taking blower belt off and turning over with a breaker bar, maybe the blower locked up, good luck

Was running with a buddy who had a 572 N/A in his Pantera. Cruising nice and easy at 4000rpm when his engine lost power and locked up tight. Starter wouldnt turn it an inch. Everything looked great. Turns out he broke his Crower crank....

Hope yours turns out better.

I would say that no matter what, the engine is going to have to come out. Might as well just start by pulling it and going from there.

Had the same exact thing happen with a Callies crank. You couldn't have described the symptoms any more accurately. Mine happened just over 3000 rpm. It broke just forward of #1. It coughed as the crank trigger went out of phase, and then shut down. No bad noises. I attempted to refire, and it turned over slowly. After a couple tries, it smoked the starter. As it cooled, it locked up tight. No other damage besides crank, although block gets re-align honed.

+1. I didn't even bother speculating. I was in the same situation. If the motor is locked up, you are not going to solve it in the boat.

Yea I know I'm trying to fight the obvious. Although when I turned the key to attempt a start the crank shimmys. Would it still do that if it's broke. Never broke a crank before. What kind of damage am I looking at

Pull it. I agree with others the crank most likely broke.

Just had about the same thing happen. Goin along @ 3000 gauges all looked good, engine died, popped the hatch and pulled the dipstick to look for anything odd. Didnt see anything except engine was locked up tight. Limped home on 1 and the next day started looking and it ended up being a drive locked up. Pulled the drive off and everything in the engine is fine. Maybe you will get lucky and it be something simpleand/or somewhat inexpensive....if there is such a thing LOL

Well just to give you a glimmer of hope...i had the same thing happen to me but in my case i got lucky and one of the coupler bolts on the flywheel came off and jammed between the bellhousing and the flywheel and locked me up....i was expecting the worse like stated above and was almost crying the entire time i was tearing into it....untill i got to the back after yankeing the motor out! :D whew!!

I appreciate the attemps of hope. My father said its possible that the timing chain broke and locked it up. I dunno I will pull it and report back

I FEEL YOUR PAIN, I DROPPED MY ENGINES OFF THE END OF FEB I GOT NOTICE THE FIRST OF AUG THERE DONE:eekdrop: AND OVER MY BUDGET, THE ECONOMY IS BAD CANT SEEM TO GET MY DUCKS IN A ROW. SO MY FOUNTAIN IS DOWN TILL NEXT SUMMER:(

A little update. Motor is out as of today and you can defiantly tell the crank is broke. It will be torn down today for damage assessment

Thanks for everyone's help

At least its not lonely mines at Wazzup.

What happened. Heard you were towed

If you need a ride for the fall run, your always welcome.

Not towed, dropped a cylinder at the LBI bridge on the way back from AC. Got home was going to check it out after I flushed it, and it hydrolocked. Few quick tests ruled out exhaust figured it was a head gasket so I called Smitty (took my call on Sunday) and he said to get oil in the cylinders and he would grab it in the morning.

Turns out I have a pinhole in the cylinder head, Smitty says its weird because the engine does not have a lot of rust in it. Not sure if I am just getting new heads or just repower with the 400 HP 383s that Mercury has. Just don't want to fix one motor and then the other one goes in the spring. Also would see a nice MPH increase.

But if I do this I guess I am keeping the boat for a few more years,but if I can see 80 which is a realistic number I'm ok with that. Just waiting on prices for new motors,will no in the morning.

Thanks I appreciate that, hopefully I won't be down for more than a couple of weeks.

Bummer man....i finally got my answer i was dreading. Balancer sheered keyway, broke crank, broke block, broke one rod, need a cam and god knows what else

im sick to my stomach

Yep a bummer for sure...good luck on the rebuild

What kind of crank and was it double keyed?

Season is amost over, you have all winter to fix it.Relax go to the beach this weekend thats were I'm going. I should be backup in a couple of weeks let me know if you want to go out.

Damn, that really sucks. What a way to end out the season. Guess my diagnosis turned out to be correct, unfortunately...

Yes you were. It happens. Parts are on the way and hopefully running soon enough

Thanks for all the help