All-Terrain Lawn Tractor Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.

All-Terrain Lawn Tractor Forum

Like riding lawn tractors through mud, woods, rocks, and snow? Then this is the place for you! Share your ideas, Post your projects and more!
 
PortalHomeSite RulesEventsFAQSearchRegisterLog inBuild-Off

 

 18hp Opposed twin cooling and flywheel q

Go down 
+3
1997 Murray
Craftsman1998
Krawler86
7 posters
AuthorMessage
Krawler86
Member
Krawler86
Member

2023 Build-Off Entrant
2023 Build-Off Entrant

Join date : 2014-01-02
Points : 4106
Posts : 152
Location : PNW

18hp Opposed twin cooling and flywheel q Empty
PostSubject: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 8:48 am

On this Craftsman II GT 18hp Briggs, the way im orienting it, i need it to be skinnier on the inlet fan side. Stock, the fan faced the center console and had a pulley in front of it. So airflow was limited, which is why im guessing the extra fan was added. The fan itself is also kinda heavy, not iron heavy, but its a little weight.

Stock, without the drive pulley.
18hp Opposed twin cooling and flywheel q Img_3043


Im wondering if i can run it like this with no ill effects. Il make a mesh guard that mounts either to the frame or to the shroud to protect that inlet, but it will be on the left side of the tractor with ample airflow, il also put a grill on that side of the sheetmetal for cooling intake as well. Do you think it would be ok to run like this? It would make my life much easier if i could.
18hp Opposed twin cooling and flywheel q Img_3044
Back to top Go down
Craftsman1998
Veteran Member
Craftsman1998
Veteran Member

1000+ Posts
1000+ Posts!
2014 Build-Off Top 3 Winner
2014 Build-Off Top 3 Winner
2015 Build-Off Entrant
2015 Build-Off Entrant

Age : 26
Join date : 2013-10-30
Points : 5104
Posts : 1068
Location : New jersey

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 9:32 am

If it was my mower i would just run it the way it is. if it makes it easier. im sure its not the best thing to do but i would do it.
Back to top Go down
1997 Murray
Veteran Member
1997 Murray
Veteran Member

1000+ Posts
1000+ Posts!
2014 Build-Off Finalist
2014 Build-Off Finalist
2015 Build-Off Finalist
2015 Build-Off Finalist
2016 Build-Off Entrant
2016 Build-Off Entrant

Age : 26
Join date : 2013-11-13
Points : 5398
Posts : 1311
Location : NW USA

18hp Opposed twin cooling and flywheel q Empty
PostSubject: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 10:42 am

go ahead and leave it off, my opposed twin just has the fan in the last picture.
Back to top Go down
T-Dub13
Established Member
T-Dub13
Established Member

500+ Posts
500+ Posts

Age : 54
Join date : 2013-12-06
Points : 4524
Posts : 540
Location : Central MA

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 12:20 pm

I can't see any reason why it wouldn't work. Should work better than stock too because you're feeding it fresh, cool air now.  Smile 
Back to top Go down
MowBandit
Member
MowBandit
Member

2014 Build-Off Entrant
2014 Build-Off Entrant

Age : 28
Join date : 2013-03-16
Points : 4701
Posts : 477
Location : Haddock,Georgia

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 2:52 pm

I normally wouldnt recommend it but the way you got your engine setup go for it i see no harm if anything i see it being able to pull more air in
Back to top Go down
1997 Murray
Veteran Member
1997 Murray
Veteran Member

1000+ Posts
1000+ Posts!
2014 Build-Off Finalist
2014 Build-Off Finalist
2015 Build-Off Finalist
2015 Build-Off Finalist
2016 Build-Off Entrant
2016 Build-Off Entrant

Age : 26
Join date : 2013-11-13
Points : 5398
Posts : 1311
Location : NW USA

18hp Opposed twin cooling and flywheel q Empty
PostSubject: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 2:54 pm

jay_rod is the expert on opposed twins..... he has a thread on here somewhere
Back to top Go down
Doc Sprocket
Site VIP
Doc Sprocket
Site VIP

2500+ Posts
2500+ Posts!
2018 Build-Off Entrant
2018 Build-Off Entrant
2021 Winner of Winners
2021 Winner of Winners
1st Place Build-Off 2016
1st Place Build-Off Winner 2016

Age : 51
Join date : 2013-04-21
Points : 7270
Posts : 2914
Location : Ontario Canada

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 6:22 pm

It will be fine, as pictured.
Back to top Go down
matt-man
Member
matt-man
Member


Age : 27
Join date : 2013-07-26
Points : 4343
Posts : 221
Location : North Fort Myers, Florida

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 6th 2014, 8:24 pm

Ive ran engines like that for a few years and they still run just fine so I wouldn't worry about it
Back to top Go down
Krawler86
Member
Krawler86
Member

2023 Build-Off Entrant
2023 Build-Off Entrant

Join date : 2014-01-02
Points : 4106
Posts : 152
Location : PNW

18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitimeJanuary 7th 2014, 1:07 am

Awesome, exactly what i wanted to hear, thanks guys. Saves me from new hood mounts or deformed sheetmetal on that side. That fan just sticks out too far. Now it can be almost flush with the sheetmetal on that side.
Back to top Go down
Sponsored content





18hp Opposed twin cooling and flywheel q Empty
PostSubject: Re: 18hp Opposed twin cooling and flywheel q   18hp Opposed twin cooling and flywheel q Icon_minitime

Back to top Go down
 
18hp Opposed twin cooling and flywheel q
Back to top 
Page 1 of 1
 Similar topics
-
» Briggs Opposed twin Starter and Flywheel issues
» 18HP briggs opposed twin
» 18.5 hp opposed twin
» 18hp briggs twin cylinder opposed power problems. PLEASE HELP!!!
» 18hp opposed twin model 422707, older model

Permissions in this forum:You cannot reply to topics in this forum
All-Terrain Lawn Tractor Forum :: Technical Forum :: Engine Tech :: Briggs and Stratton-
Jump to: