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Random Quote: Good judgement comes from experience. Experience comes from bad judgement Colin Powell
I am still in the water at the mouth of the Connecticut River and was down at the boat securing some lines this morning. The wind has been blowing 40+mph out of the SE causing some 1-1.5ft rollers to come into my marina. While securing the lines one of them slipped from my hands and the outboard (yamaha F150 while turned off and in the fullest up position) made contact with the dock. The steel prop was pressed against the dock when a wave came through lifted up the transom and bent the prop against the dock. The bend in the prop blade is about 1/2 inch long and maybe 10 degrees off normal.
Is this enough to bend my propshaft??
100 hours off shallow water running this season and the prop damage occurs at my dock!! I am sooo pissed!
A dial indicator will only give you an idea ,at best, unless you remove the shaft and the carrier and place it in a V block. There is too much slop in the bearings to get an accurate read when it is in place. That said, a dial indicator will tell you if the shaft is bent( without disassembly) but you cannot rule out a bend unless you check with the carrier removed. Shafts are pretty tough and I doubt you did any damage under these cicumstances. Unless you destroyed the prop, there was not likely enough force involved.
Had a misadjusted spring line last winter during a storm.* The engine was up, and resting on the trailering bracket.* Boat came back far enough in the slip for the prop to bear against the face of the floating dock.* Saw wood chips on two blades, and the gouges in the dock face.
Prop blades (SS)*not bent.* Noted a bit of vibration, so had it pulled for the 100-hr service.* Found that the prop shaft was bent.* Also found that the bushings for the tilt tube were damaged, and the engine could be "bounced" on the bracket.
Had the prop shaft replaced immediately (last May), and the tilt tube replaced last week.
if you lift the engine and spin the prop by hand, there is on my prop shaft anyway, an indent in the center when viewed end on....if the shaft is bent you can tell just by looking at the indent while it is in motion......i bought a boat with a yammie 150 and was idly spinning the prop while waiting for a freind.....it was out by about an 1/8th of an inch....the factory spec is 5 thousandths.....had to replace the prop.....you will chew up the lower end in a hurry if is bent too much.....good luck, i hope you don't have to
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Anyone who calls a spade a spade deserves to use one.
whoops, it was the shaft.....i asked them if it was worth trying to straighten it.....not.......i am glad i noticed it and glad i made the repair.....if i had not fixed it i'm willing to bet it would have cost me a lot more than it did....the prop was fine, had just been retuned....previous owner's wife dinged a big rock...he replaced the lower housing, but looks like no one noticed the shaft was bent......a big reason he decided to sell the boat was trouble finding a good yammie mechanic near him....
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Anyone who calls a spade a spade deserves to use one.
My Honda 130 was rear ended while trailering my 19'CC this summer. The aluminum prop was destroyed and the skeg paint was scratched up. But luckily my aluminum prop took all the damage and the shaft is fine.
You should have seen though the damage a skeg can do to a Hyundai. Was like a can opener from the front grill all the way up past the radiator.
Did I bend my propshaft?
