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Hitting submergered log - problems thereafter
BCassedy
#1 Posted : Thursday, July 08, 2010 11:47:14 PM(UTC)
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Boating on the Ohio has its own set of problems, as I would expect any river would. Last night while heading back to the dock we struck a submerged log. I initially thought something had fallen over on the back deck (the sound was a solid, single "wump)". I did notice a slight vibration afterwards and a different "sound" to the motors. We made it back to the dock without any other problems. Once at the dock it became apparent all was not well. While trying to back into the slip, the port engine consistently stalled out which it has never done previously. I'm thinking that there's probably prop damage, but the stalling has me more concerned.

On a positive note, I'd anticipated replacing the props as the surveyor noted that the current ones are worn down from use. Happily I have 2 replacements.

Would anyone have any insight into what I may possibly have to check? I don't know that the timing has been thrown off or ???.

Bill
Bill & Sharon Cassedy
" Sunset Seeker "
1988 32' Fly Bridge
Twin 318 Cu In / 240HP Chrysler power plants
Raw water cooling
Freshwater boat
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GB49
#2 Posted : Friday, July 09, 2010 12:02:56 AM(UTC)
GB49

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Maybe bent shaft but I would think if it were bent enough stall the engine in reverse it would also stall in forward.

Might check the coupling alignment between shaft and trans. If you have a Marinette owners manual it shows in there the tolerances and procedures.

-Karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
Docsnow
#3 Posted : Friday, July 09, 2010 12:13:34 AM(UTC)
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Bill,

As U where backing into the slip did U hear any noises coming from the area of the prop there may still be something entangled in that area where as when U where under power forward there was enough rpms to keep the engine running. Can U get a visual to see if there is some thing still lodged down there.Think

Norm,

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GB49
#4 Posted : Friday, July 09, 2010 12:23:08 AM(UTC)
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Good point, Norm. Something could be stuck around the shaft.

Bill, are you sure you hit a log and not something else??

-karl
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
fishnatic
#5 Posted : Friday, July 09, 2010 2:59:45 AM(UTC)
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Struts can be deflected backwards by a rock hit, my first M [28 express single] had hit rock at charity islands w/former owner. Still bent when we purchased it, buddy and i pulled it back into aliangment w/threaded rod from log to strut w/shaft removed. Bent strut had earen cutlass up,removed old bearing before pulling.we pulled a little checked w/shaft through strut until it was straight.after done you could see a slight deflection in hull from strut deflection,but was once again straight.good luck,let us know the out come. I almost hit a log last sept,as i cleared the peir head at Oscoda{home port],very little was above water,20 foot long,luckily it was paralell[sp] to boat as i passed it.
fastjeff
#6 Posted : Friday, July 09, 2010 5:35:44 AM(UTC)
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I'll bet you sucked in a rope and that's all. Hope so.

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell

dependo
#7 Posted : Friday, July 09, 2010 7:40:17 AM(UTC)
dependo

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Maybe he found Jimmy Hoffa?
1973 express FB 32ft
twin 318
"Southern Lady"
Chattanooga
BCassedy
#8 Posted : Friday, July 09, 2010 7:43:38 AM(UTC)
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Thanks, guys.

- Didn't hear anything abnormal or feel any real vibration when backing out. Just the port engine wouldn't idle with the throttles at minimum and in reverse.

- Good indications - powered up both engines this morning after initial thread. Both port and starboard units started immediately and idled smoothly. Ditto at 2000 RPM. (WHEW!). So it doesn't appear that the engines were affected.

- Whatever she hit, it was reasonable in size (due to the sound made when it hit), though I didn't see it from the upper bridge.

- I'm going to (gingerly) take her out in the river where I can anchor, get in the water and check (by feel - water's never too clear) for damage. I remember one of our members was able to get a good feel of a bent prop without really going under while in the water. I should be able to do that as well as do a bit of snorkleing underneath to check struts and shaft. Also, some of the shoreline of the Ohio isn't muck and I could back 'er towards shore without jeopardizing anything and have decent footing (this'd be wear I don my "steel soled" shoes to keep the crud in the bottom at bay).

Bill
Bill & Sharon Cassedy
" Sunset Seeker "
1988 32' Fly Bridge
Twin 318 Cu In / 240HP Chrysler power plants
Raw water cooling
Freshwater boat
RCPRATHER
#9 Posted : Friday, July 09, 2010 8:03:03 AM(UTC)
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Hello Bill,
Sorry to hear of your boating issues. Where are you ported at? 4 seasons? I am presently at LBYC.
Rob
"Great Escape"
32ft 1972 Express
Twin 318's
Located at LBYC
On the Ohio River at mile marker 480
BCassedy
#10 Posted : Friday, July 09, 2010 10:57:17 AM(UTC)
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Rob,

I'm up at Manhattan Harbour, A dock, slip 133. Boat's currently got the name "Shared II" but I'm in process of renaming her to Sunset Seeker.

www.themanhattanharbour.com/marina.html Go to "Amenities" and click on Slip Layout.

Bill
Bill & Sharon Cassedy
" Sunset Seeker "
1988 32' Fly Bridge
Twin 318 Cu In / 240HP Chrysler power plants
Raw water cooling
Freshwater boat
Doug Doty
#11 Posted : Saturday, July 10, 2010 3:59:32 PM(UTC)
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I'LL TRY TO STOP AND SEE YOU BOTH SOON, WE ARE GOING TO BE A MANHATTON THE WEEKEND OF THE 23RD. AND GOING ON UPSTREAM FROM THERE THE FOLLOWING WEEK.

DOUG...
466 Bertram FDMY, " Easy Rider "
1984 39 Marinette sedan, " LIBERTY ONE "
440'S 19x22 wheels, 710 HOURS

tundrarules
#12 Posted : Sunday, July 11, 2010 3:53:10 AM(UTC)
tundrarules

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Applause Angel
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Maybe he found Jimmy Hoffa?
1985 Marinette 29 Sedan bridge
Twin 318s, 660 hours
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Located Pickwick Lake, TN,MS,AL


RETRO BOATS ARE COOL

If the guys on this forum take their time to help you, have the courtesy to update your thread with the resolution.
BCassedy
#13 Posted : Sunday, July 11, 2010 12:39:13 PM(UTC)
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Well, I'm convinced God must own a BigM !! He smiled on me...

Took the boat out into the Ohio (where the "icky factor" is much less than sittin' in the marina). Couple of dives under the boat found nothing wrong (that feeling around could verify) on the port system (shaft, rudder, prop). Starboard side came up with one blade of the prop having a 2 - 3 inch bend in the edge. So it mush not have been too big a log and/or was in pretty sad shape and the prop was able to cut thru it. I was able to straighten most of the deformity but once I get something more solid as a "backer", I should be able to shape it back to almost normal under water.

Would there be a preference as to what material would be best suited as a backer? Normally, I'd go with steel but given the nature of Marinettes, I thought it best to ask the forum first.

Either way, it looks like another prolonged period holdin' my breath. If I was younger, I'd have this down pat...
... my mom said I could hold my breath quite a long time.

... but then, she'd just caught my brother and I sneaking her smokes!

Bill

Bill & Sharon Cassedy
" Sunset Seeker "
1988 32' Fly Bridge
Twin 318 Cu In / 240HP Chrysler power plants
Raw water cooling
Freshwater boat
BCassedy
#14 Posted : Sunday, July 11, 2010 12:41:22 PM(UTC)
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Doug,

We'll be on the look out for you! Hope we can meet up.

Bill
Bill & Sharon Cassedy
" Sunset Seeker "
1988 32' Fly Bridge
Twin 318 Cu In / 240HP Chrysler power plants
Raw water cooling
Freshwater boat
fastjeff
#15 Posted : Sunday, July 11, 2010 12:54:47 PM(UTC)
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For a backer, use anything that's good and heavy, and fits the blade area. Don't worry about metal contamination.

Jeff

PS: Don't forget to hold your breath!

"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell

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