Loss of power to prop

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Brianmo

Cadet
Joined
Sep 25, 2010
Messages
6
Johnson 140, 1994 looper. Running great but as I'm cruising today I had a loss of thrust. Power head runs fine but when I give it throttle it just revs up. It will run at about two knots. After pulling it out of the water I could smell a burn smell near the prop. any help is wonderful. Thanks
 
oldcatamount

oldcatamount

Lieutenant Commander
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Apr 4, 2010
Messages
1,740
Re: Loss of power to prop

Sounds like you hae a "spun" prop. That's where the rubber hub breaks away from the prop shaft housing.
 
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Brianmo

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Joined
Sep 25, 2010
Messages
6
Re: Loss of power to prop

I check the lower end lube and it was not burned and no metal filings in it . Whats the fix for Prop spun? pull prop and replace seals?
 
oldcatamount

oldcatamount

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Apr 4, 2010
Messages
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Re: Loss of power to prop

No, your lower unit is not the problem, the prop is. You will need to find a dealer that can get it repaired for you or, find another used one and replace it.
 
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Brianmo

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Joined
Sep 25, 2010
Messages
6
Re: Loss of power to prop

I checked the lower end lube and it looked(smelled )fine. what parts do I need to repair a spun prop issue?
 
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Brianmo

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Joined
Sep 25, 2010
Messages
6
Re: Loss of power to prop

sorry i didnt read your last post. Thanks for the info. I'll pull the prop.
 
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Brianmo

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Sep 25, 2010
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Re: Loss of power to prop

Sure enought. I pulled the prop and the hub inside was wallowed. Is there a kit to replace the rubber insert?
 
oldcatamount

oldcatamount

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Apr 4, 2010
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Re: Loss of power to prop

Can't help you with that question. My guess is that the hub is adhered inside the prop by some special adhesive/heat combination. Maybe someone here on Iboats can help us out with this.
 
14ftgrumman

14ftgrumman

Chief Petty Officer
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Jul 19, 2008
Messages
416
Re: Loss of power to prop

Take the prop to your local dealer, if the dealer doesn't repair props, ask them where they take them.
 
S

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: Loss of power to prop

Take the prop to a prop shop if you have one in your area or to your local marine dealer who will ship it out to a prop shop. The shop will rehub the prop, take out any nicks or bends and make it like new. Rehubbing is not a do-it-yourself project.
 
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Brianmo

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Joined
Sep 25, 2010
Messages
6
Re: Loss of power to prop

Gotcha. Thanks for the great response. This board is da man.
 
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