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Message Subject: Motor Concern

906ESOX

Posted 10/26/2019 7:55 AM (#948892)
Subject: Motor Concern

Posts: 45

I have a 50hp 4stroke Mariner. A couple of weeks ago when under full power it made a metallic crackling sound and it almost felt like I had hit something- but had not. Same thing happened one mor time that day. I have since avoided high rpms but yesterday I could hear a popping sound intermittently.

Any thoughts on what may be going on?

sworrall

Posted 10/26/2019 9:39 AM (#948898 - in reply to #948892)
Subject: Re: Motor Concern

Posts: 32800

Location: Rhinelander, Wisconsin

Possibly cylinder or valve problems, at best lower unit issues... don't run it

906ESOX

Posted 10/26/2019 11:24 AM (#948902 - in reply to #948892)
Subject: Re: Motor Concern

Posts: 45

Took it in the morning. Big chunks of metal in the lower unit oil.

sworrall

Posted 10/26/2019 11:51 AM (#948903 - in reply to #948892)
Subject: Re: Motor Concern

Posts: 32800

Location: Rhinelander, Wisconsin

Ouch....

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