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

 

 12 hp Briggs i/c a 1985 model is knocking

Go down 
3 posters
AuthorMessage
MSteele323
Member

Member


Age : 49
Join date : 2010-04-09
Points : 5457
Posts : 267
Location : Little Rock Arkansas

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeSeptember 25th 2011, 8:52 pm

Well remember why i scraped the Murrat? well it had a unexplained knocking so i shut it down. I discovered the problem . it turned out to be the Link counterweight had broke. I was lucky enough to catch it before it totally damage the block. thank goodness i had another Link counterweight from another motor to put it back in.


Last edited by MSTEELE on October 5th 2011, 8:02 pm; edited 1 time in total
Back to top Go down
https://www.youtube.com/user/msteele323?feature=mhw5
MSteele323
Member

Member


Age : 49
Join date : 2010-04-09
Points : 5457
Posts : 267
Location : Little Rock Arkansas

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 8:00 pm

Fixed it and it is still knocking badly!
Back to top Go down
https://www.youtube.com/user/msteele323?feature=mhw5
Ford Boi
Member
Ford Boi
Member


Age : 39
Join date : 2010-08-22
Points : 5221
Posts : 242
Location : Yarmouth, Nova Scotia, Canada

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 9:40 pm

Weird... What kind of motor is it? My 12HP briggs I/C has a distinct knock especially at low RPM but runs fine... I wonder what it is. I've also heard a couple other good working Briggs with the same noise.
Back to top Go down
MSteele323
Member

Member


Age : 49
Join date : 2010-04-09
Points : 5457
Posts : 267
Location : Little Rock Arkansas

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 9:47 pm

Its a 12 horse Briggs i/c a 1985 model. i still yet gotta take it back apart to find out hat that noise is.
Back to top Go down
https://www.youtube.com/user/msteele323?feature=mhw5
Ford Boi
Member
Ford Boi
Member


Age : 39
Join date : 2010-08-22
Points : 5221
Posts : 242
Location : Yarmouth, Nova Scotia, Canada

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 10:26 pm

Hmm.. Mine's a 94... I have a 2000 13.5 I/C Gold in my mowing mower that also shares the same noise but at higher RPM. Perfect motor, never been abused... And I worked on an 85 or 86 12HP that was REALLY bad but ran fine. Never opened up either one tho... Let us know what you find out anyways!
Back to top Go down
product
Member
product
Member


Age : 32
Join date : 2011-10-03
Points : 4646
Posts : 76
Location : Ontario Canada

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 10:32 pm

startin to sound like its just a briggs thing lol just like chevy trucks with there lifters aha runs mint just a slight tick
Back to top Go down
MSteele323
Member

Member


Age : 49
Join date : 2010-04-09
Points : 5457
Posts : 267
Location : Little Rock Arkansas

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 5th 2011, 10:45 pm

Ford Boi wrote:
Hmm.. Mine's a 94... I have a 2000 13.5 I/C Gold in my mowing mower that also shares the same noise but at higher RPM. Perfect motor, never been abused... And I worked on an 85 or 86 12HP that was REALLY bad but ran fine. Never opened up either one tho... Let us know what you find out anyways!
I have a vid coming up on youtube ( currently uploading slowly) and you can hear it.
Back to top Go down
https://www.youtube.com/user/msteele323?feature=mhw5
MSteele323
Member

Member


Age : 49
Join date : 2010-04-09
Points : 5457
Posts : 267
Location : Little Rock Arkansas

12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitimeOctober 11th 2011, 12:35 pm

Fixed the motor and on the first start k-blammo a huge hole in the back of the block.
Back to top Go down
https://www.youtube.com/user/msteele323?feature=mhw5
Sponsored content





12 hp Briggs i/c a 1985 model is knocking Empty
PostSubject: Re: 12 hp Briggs i/c a 1985 model is knocking   12 hp Briggs i/c a 1985 model is knocking Icon_minitime

Back to top Go down
 
12 hp Briggs i/c a 1985 model is knocking
Back to top 
Page 1 of 1
 Similar topics
-
» knocking & where can i also get a engine rebuild kit for a briggs & stratton 21.5hp vtwin?
» New old briggs model 5s
» 8hp Briggs model question?
» Briggs and stratton Model 5s Modification
» briggs and stratton 11hp model 258707

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: