Evinrude 4 lightwin Free spinning motor

[FishingTheFL]

Was running fine, suddenly it was like the motor lifted out the water free spinning but was still in the water. Shut down asap.

 

Going to pull it apart today. Any suggestions where to start looking for damage. Tyia

 

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[Sk8man]

sheared a pin on the prop?

[JTowne]

that was my guess. have also seen the upper driveshaft splines round off on them.  What year is the motor? depending on what you find I may have what you need in the shop.

[LakerTaker]

Maybe a worn clutch dog? It transfers power to the prop. If it's worn it can make the motor jump out of gear. Sometimes you can flip them over and use the reverse gear side for your forward. Looks like a round piece of tubing with teeth on top and bottom.


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[JTowne]

4hp lightwin is a 180 degree motor with no shifting, and a throttle lever on the side ...Unless it's a super old metal shrouded one.  If it has a shifter and a throttle on the tiller it's not a lightwin. Very simple motors with not a lot to go wrong. 

[JTowne]

Does it look like this ? Like I said I have a couple of these in the boneyard so let me know what you find.

[LakerTaker]

4hp lightwin is a 180 degree motor with no shifting, and a throttle lever on the side ...Unless it's a super old metal shrouded one.  If it has a shifter and a throttle on the tiller it's not a lightwin. Very simple motors with not a lot to go wrong. 

Good point. I was wondering if it had a shifter.


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[FishingTheFL]

Helping my uncle with his boat quick. Ill get more info soon as I get home.

When I turn the prop, it sounds like it is not grabbing the motor. Prop still feels like it is turning the shaft. I dont know much about outboards but i think it is in that location, motor to shaft.

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[FishingTheFL]

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[FishingTheFL]

Does it look like this ? Like I said I have a couple of these in the boneyard so let me know what you find.

Yes looks pretty much like that.

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[FishingTheFL]

Pretty sure this is the issue... how much of a headache is it to change the shaft? Is the upper half going to be rounded out as well? Sucks, had a nice season going

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[JTowne]

the splines where that shaft goes are usually fine. feel up in there and look with a light to verify. its really not that big of a deal to change out

[JTowne]

its a 1974 going by your picture. is this a regular shaft or does it have an extension? if you have a picture of the whole motor or the lower unit i could tell

Edited August 27, 2017 by JTowne

[FishingTheFL]

Its a short shaft. I like the pic above. Yes its a 74

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[JTowne]

Well I have a complete parts motor. What ya wanna trade me !? Lol

[FishingTheFL]

Location?

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[JTowne]

North of Watertown . Gouverneur..  I sell a lot of used parts on eBay and have no problem taking motor apart into manageable pieces and shipping . 

[FishingTheFL]

Sweet. My girlfriend uses ebay. Can you send me pm with info and prices. Looks pretty easy to fix. I have about 4 projects going and with winter coming... I will only have a few hours to give it a try. Perch should be schooling up soon so I will be switching over

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