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 16.5hp Briggs and Stratton opposed

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RichieRichOverdrive
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PostSubject: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 2:38 pm

Does a Briggs opposed Always sound like it has a rod knock
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 4:25 pm

My old snaper with the 12 horse apposed did not have rod kock it just ate a LOT of oil. I knwe the rings were going to go but it still had enough compression.
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 5:38 pm

They have a lot of mechanical noise, but rod knock sounds like rod knock. If it's knocking then you'll know.
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 5:55 pm

I have 3 briggs opposed. 15hp 16hp 17.5hp and none of them knock.

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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 6:42 pm

I'm no expert on oppy's, but I'd imagine the camshafts in them are steel unlike modern plastic small engine cams. The sound you hear could just be valve train clatter.

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MatthewD
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 6:52 pm

Most of my flat head Briggs's are 'clattery'. It sounds a little like a rod knock but less pronounced. Your engine could just be worn out internally.
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 7:10 pm

Yes, my opposed I put together for my GTR mini tractor has a knocking type noise and I even plastigauged the rods when I was putting it together. Redlinemotorsports also had a knocking in his opposed on the MTD, took the cover off and wiggled the rods without issue. I think it must be valve noise in these. Unless it gets louder or is extremely heavy/loud sounding I wouldn't worry about it.
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PostSubject: Opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 8:18 pm

Thanks for the help I took the heads off of it and was devastated it always smoked a little when you rev well I did a oil change and it went to knocking and smoking so bad I thought I was gonna die of inhaling so much smoke but anyway I took the heads off and both the head gaskets were blown the valve guides are wore the cylinders were scared and the piston has tons of slop in it I found all this hard to believe with it only having 150 hours on it so I'm just gonna take it off and put a Kohler magnum on it for now
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PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 8:26 pm

Well I guess in this case something was up lol
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Kleatus
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PostSubject: Opposed   16.5hp Briggs and Stratton opposed Icon_minitimeWed Feb 15, 2017 10:13 pm

I'll problably rebuild it one day you wouldn't know which wire on a Kohler magnum would charge the battery would you
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16.5hp Briggs and Stratton opposed Empty
PostSubject: Re: 16.5hp Briggs and Stratton opposed   16.5hp Briggs and Stratton opposed Icon_minitime

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