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 Briggs and Stratton Opposed Twin Q/A 's!

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Thunderdivine
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PostSubject: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 4:46 pm

Post them Q & A's about your Opposed Twin here!

I can start off by asking,

What is the bolt size for the keyed output shaft? Can it be 7/16 - UNC?

None of the one I had fit.
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richie thomas
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 4:52 pm

i think so, i would go out and check mine, but its kinda storming here lol
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 4:53 pm

richie thomas wrote:
i think so, i would go out and check mine, but its kinda storming here lol

Ouch, be safe!
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richie thomas
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 4:57 pm

im not worried, i love a thunder storm, but it ticked me off cause i was gonna take dixie apart and sand her down and no i cant Mad my shed leaks so i might as well be in the rain lol
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Doc Sprocket
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 9:36 pm

It may be 3/8" or 7/16", ( cant remember right now) but you're looking for a UNF thread, not UNC.
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 9:39 pm

I bought 3/8" today as i thought it was correct, it went right through/ in. And oh is it Fine thread, I will get a new bolt tommorrow.

Exhaust is 1/4" UNC tho?
And Exhaust port center should be 3/4" Pipe threads.


Last edited by Thunderdivine on June 4th 2013, 9:42 pm; edited 1 time in total
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Doc Sprocket
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 9:41 pm

Yes- exhaust is UNC.
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 9:43 pm

Doc Sprocket wrote:
Yes- exhaust is UNC.

Allright thanks.
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Doc Sprocket
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 4th 2013, 9:55 pm

Anytime!
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 29th 2013, 9:21 am

Anyone know the threadsize for the engines oil drain hole? I guess its Pipethreads?
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 29th 2013, 9:23 am

Doc Sprocket wrote:
It may be 3/8" or 7/16", ( cant remember right now) but you're looking for a UNF thread, not UNC.

And it was 7/16" UNF indeed.
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Stretch44875
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 29th 2013, 10:15 am

Yes, pipe, I believe it's 3/8's.
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Doc Sprocket
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 29th 2013, 2:50 pm

Oil drain is 3/8" NPT.
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJune 29th 2013, 5:31 pm

Doc Sprocket wrote:
Oil drain is 3/8" NPT.

Thanks Stretch and Doc Smile
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BlackMountian88
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJuly 2nd 2013, 3:00 pm

Thunder, the output shaft takes a very specialized bolt. It took me a few weeks to find one. You need a big hardware store, not just a homedepot or anything. Good luck.
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Thunderdivine
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJuly 2nd 2013, 3:48 pm

BlackMountian88 wrote:
Thunder, the output shaft takes a very specialized bolt. It took me a few weeks to find one. You need a big hardware store, not just a homedepot or anything. Good luck.

Not really specialized, but yeah and it was 7/16 - UNF, that's Fine thread, since you guys operate with UNFine and UNCoarse Thread's Smile

We have a very good store for bolts and fastener's. But they normally sell in bulk, so it cost me loads to buy only one. Thanks!
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitimeJuly 2nd 2013, 5:11 pm

BlackMountian88 wrote:
Thunder, the output shaft takes a very specialized bolt. It took me a few weeks to find one. You need a big hardware store, not just a homedepot or anything. Good luck.

Wel... Yes and no. It's not a "specialty thread" per se- just a UNF machine thread. Dirt common in north american machinery. However, you're right insofar as that bog-box hardware stores tend not to carry UNF. When I need them, I usually hit up a proper industrial fastener store like Brafasco.
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PostSubject: Re: Briggs and Stratton Opposed Twin Q/A 's!   Briggs and Stratton Opposed Twin Q/A 's! Icon_minitime

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