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!
 
PortalHomeSearchRegisterLog in
Welcome to the All Terrain Lawn Tractor Forum!
2019 Build Off Underway!

Share
 

 Need some help in diagnosing a runaway throttle issues on 20hp v-twin

Go down 
Go to page : 1, 2, 3  Next
AuthorMessage
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeSun Apr 28, 2013 10:03 pm

Hi everyone,

I got a craigslist deal the other day. The tractor in the video below was only $50. I cleaned it up and discovered a few issues. The main issue right now is someone messed with the linkage on the carb. It was rigged up with a spring and piece of wire which let it run either at low-speed idle or a wide-open throttle.



I made a little video. If you think you can help me out please take a look. There is also a rotational noise coming from the transaxle that I think I will investigate further by cracking the case to change the fluid and possibly lock the gears up.

Thanks,
Mike
Back to top Go down
Doug
Administrator
Administrator
Doug

Age : 24
Join date : 2012-12-24
Posts : 2893
Forum Rep : 50
Location : Lebanon County, PA

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeSun Apr 28, 2013 10:42 pm

The missing screw is your limited for it. The linkage running to that butterfly is the throttle, regulated by the governor (the arm) and controlled by the throttle.

The screw needs replaced then adjusted, You also need to replace that spring, otherwise its running wide open all the time with the gov arm down like that.

_______________________________________________
Head Forum Administrator ** Chat Moderator ** Facebook Page Admin
ATLTF Facebook Page ** Chatbox ** How To Upload Pictures

_X_ FORUM ANNOUNCEMENTS _X_


Have a question? Ask me! Type in "@Doug" in your post!

Your ATLTF Staff:
Administrators: @Doug, @MightyRaze, @"Doc Sprocket", @Stretch44875
Moderators: @TheRainbowBoxer, @AllisKidD21




Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 6:57 am

Should I put the spring I took off back on? It looks like it was a DIY remedy. Is something else supposed to be there?
Back to top Go down
Doug
Administrator
Administrator
Doug

Age : 24
Join date : 2012-12-24
Posts : 2893
Forum Rep : 50
Location : Lebanon County, PA

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 10:14 am

Ill take a pic of mine later on for you, since I run an Intek twin as well.

_______________________________________________
Head Forum Administrator ** Chat Moderator ** Facebook Page Admin
ATLTF Facebook Page ** Chatbox ** How To Upload Pictures

_X_ FORUM ANNOUNCEMENTS _X_


Have a question? Ask me! Type in "@Doug" in your post!

Your ATLTF Staff:
Administrators: @Doug, @MightyRaze, @"Doc Sprocket", @Stretch44875
Moderators: @TheRainbowBoxer, @AllisKidD21




Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 7:45 pm

Thanks!
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 8:18 pm

What are the odds of me having broken governor components inside the engine?
Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

Age : 46
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 9:05 pm

@MCRideout wrote:
What are the odds of me having broken governor components inside the engine?

Pretty good, actually. If somebody was overriding the governor, it could have failed internally. Not only have I seen it happen, I've HAD it happen. Step one would be sourcing a diagram and all required parts to get the externals back together. Then, attempt to adjust, and test. If adjusting according to the FSM does not work, it's time to crack it open.

Or, you could just crack it open. If the internals DID grenade, you can use that moment to decide whether to source the parts, or just remove all governor-related stuff and have done with.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 9:54 pm

Thanks for the detailed response. If the governor is bad would I be able to control the throttle at all at the dash? I could control the throttle with the small spring connected. It wasn't until after I disconnected the spring that I started to have a problem. ,

I plan on running a gas pedal. I dont need a governor for that do I? Will I need to buy a gasket if I take the case off?
Back to top Go down
TheRainbowBoxer
Moderator
Moderator
TheRainbowBoxer

Age : 44
Join date : 2012-04-23
Posts : 1051
Forum Rep : 10
Location : Galion, OH

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 10:25 pm

My group (5 tractors) bypasses governors as a rule and have no issues at all... I won't get further into the holy war that is the "to govern or not to govern" conversation.

_______________________________________________
Proud member of the Mower Cycle Gang... aka the "Mowrons!"

My build (Chaos is one of 3 built like this)
Chaos Build

The Mower Cycle Gang visited 1puglife in May 2014
Check out the pics and vids!

Haspin 2016 was a blast!  Check out pics and vids here
Haspin 2016 Media thread

Join us for the annual Mowron-fest at Haspin Acres!
Haspin Acres Rally 2019!

Check out my YouTube for more tractor action, my vlog, and my bus build!
TheRainbowBoxer on YouTube
Back to top Go down
Doug
Administrator
Administrator
Doug

Age : 24
Join date : 2012-12-24
Posts : 2893
Forum Rep : 50
Location : Lebanon County, PA

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeMon Apr 29, 2013 10:38 pm

Yup, youre missing the spring and the limiter screw.

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_0810

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_0811

_______________________________________________
Head Forum Administrator ** Chat Moderator ** Facebook Page Admin
ATLTF Facebook Page ** Chatbox ** How To Upload Pictures

_X_ FORUM ANNOUNCEMENTS _X_


Have a question? Ask me! Type in "@Doug" in your post!

Your ATLTF Staff:
Administrators: @Doug, @MightyRaze, @"Doc Sprocket", @Stretch44875
Moderators: @TheRainbowBoxer, @AllisKidD21




Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

Age : 46
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 5:45 am

@TheRainbowBoxer wrote:
My group (5 tractors) bypasses governors as a rule and have no issues at all... I won't get further into the holy war that is the "to govern or not to govern" conversation.
Holy war, indeed! There are some pretty strong opinions out there, aren't there? Some factual, but a LOT of BS too...

Does this site have an "official" position on the subject? Am I gonna start stepping on toes?

I WILL say this much: It is my experience-based position that AS A GENERAL RULE, IF you are not going to use the governor, take the guts out. You MAY be okay bypassing it, and you may not. Some engine's governors are more tolerant of overspeeding than others.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 7:23 am

Hey Doug,
I have the big spring but not the little one. How strong is the small spring? These pics are very helpful. Now to figure out the threads on that missing screw....

If after this the throttle is not fixed I will have to pop it open and take the guts out.
Back to top Go down
TheRainbowBoxer
Moderator
Moderator
TheRainbowBoxer

Age : 44
Join date : 2012-04-23
Posts : 1051
Forum Rep : 10
Location : Galion, OH

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 9:27 am

I don't think there is an official position, but there are a few people who feel somewhat strongly on the subject in either direction. Holy war might be overstating it a bit...

_______________________________________________
Proud member of the Mower Cycle Gang... aka the "Mowrons!"

My build (Chaos is one of 3 built like this)
Chaos Build

The Mower Cycle Gang visited 1puglife in May 2014
Check out the pics and vids!

Haspin 2016 was a blast!  Check out pics and vids here
Haspin 2016 Media thread

Join us for the annual Mowron-fest at Haspin Acres!
Haspin Acres Rally 2019!

Check out my YouTube for more tractor action, my vlog, and my bus build!
TheRainbowBoxer on YouTube
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 4:04 pm

Hi Doug,

Can you take more pictures of the areas circled below?

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Pic_111

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Pic_211

Back to top Go down
Doc Sprocket
Administrator
Administrator
Doc Sprocket

Age : 46
Join date : 2013-04-21
Posts : 2911
Forum Rep : 20
Location : Ontario Canada

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 4:55 pm

@TheRainbowBoxer wrote:
I don't think there is an official position, but there are a few people who feel somewhat strongly on the subject in either direction. Holy war might be overstating it a bit...

Fair enough. I certainly have a firm viewpoint on the whole governor/flywheel thing- which I'd defend to the death- but I don't want to cause a ruckus bein' the new guy and all. But if anybody asks, I will *tactfully* give my opinion.

_______________________________________________
***Get YOUR official "Doc Locked, And Ready To Rock!" Stickers by clicking here!***
***Official Sprocket's Garage vinyl graphics and tees for sale HERE!***
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Facebo12
Put down the wrench, and come out with your hands up!-Doc "Tranny Crusher" Sprocket, ATLTF Forum Admin, Thinkerer and Tinkerer, and all-around good dood. Wink

Gen. Mayhem- http://www.atltf.com/t2597-general-mayhem-race-tractor
MULE- http://www.atltf.com/t2153-lawn-boy-utltv
MULEII- http://www.atltf.com/t3328-1970-john-deere-112-the-beginnings-of-mule-ii
MULEIII http://www.atltf.com/t4263-mule3-brainstorming-ideas-etc#58287
Wrench, Wheel, Wreck, Repeat...
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 9:05 pm

I took a closer look at my linkage today and I have some questions. I replaced the adjustment screw tonight too.

I'm pointing to a hole in the linkage that looks like it used to have something connected to it...Does anyone know about this?
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_4511


In this picture, I am pointing to another hole that I think is supposed to have a spring in it or something...
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_4512

In this picture, you can see a flat part of the throttle "wheel," and how it actually hits the spring attached to the governor...Is that normal? At low throttle it hits the spring, which keeps it from idling down anymore.
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_4513

Here's a bottom view of the above photo. You can see the flat part of the throttle linkage hitting the spring.
Need some help in diagnosing a runaway throttle issues on 20hp v-twin Img_4514

Back to top Go down
Thunderdivine
Seasoned Veteran
Seasoned Veteran
Thunderdivine

Join date : 2012-12-21
Posts : 2099
Forum Rep : 2
Location : Norway, Europe

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 9:12 pm

That's not an original spring by the looks of it. I'd say wait for Doug to show you his setup.

_______________________________________________
*Thunderdivine*
My Custom Racing Mower Build
JD210R - Racing Mower, Sidebuild
My Vintage John Deere 110, 1967 model
"Imagination is more important than knowledge." - Albert Einstein
Back to top Go down
truckin42
Expert
Expert
truckin42

Age : 21
Join date : 2012-10-04
Posts : 1070
Forum Rep : 0

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 10:05 pm

Yeah.
I have the same motor and if you want i can get some pics of the springs too.
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 10:20 pm

I'd appreciate the pics!

To recap the issues with this $50 tractor:
1) Governor/ carb linkage issues
2) rotational noise from the transaxle
3) leaking fuel pump
Back to top Go down
truckin42
Expert
Expert
truckin42

Age : 21
Join date : 2012-10-04
Posts : 1070
Forum Rep : 0

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeTue Apr 30, 2013 10:42 pm

@MCRideout wrote:
I'd appreciate the pics!

To recap the issues with this $50 tractor:
1) Governor/ carb linkage issues
2) rotational noise from the transaxle
3) leaking fuel pump
Ok ill get pics then.
Back to top Go down
Doug
Administrator
Administrator
Doug

Age : 24
Join date : 2012-12-24
Posts : 2893
Forum Rep : 50
Location : Lebanon County, PA

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeWed May 01, 2013 12:23 am

Ill get some better pics tomorrow for you. The last ones I got were taken while I was upside down.

_______________________________________________
Head Forum Administrator ** Chat Moderator ** Facebook Page Admin
ATLTF Facebook Page ** Chatbox ** How To Upload Pictures

_X_ FORUM ANNOUNCEMENTS _X_


Have a question? Ask me! Type in "@Doug" in your post!

Your ATLTF Staff:
Administrators: @Doug, @MightyRaze, @"Doc Sprocket", @Stretch44875
Moderators: @TheRainbowBoxer, @AllisKidD21




Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeThu May 02, 2013 6:27 pm

Bump?
Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeSun May 05, 2013 5:07 pm

The governor is toast. Now it's time to crack open the case and replace it. If I plan on running a foot throttle should I still run a governor?
Back to top Go down
Doug
Administrator
Administrator
Doug

Age : 24
Join date : 2012-12-24
Posts : 2893
Forum Rep : 50
Location : Lebanon County, PA

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeSun May 05, 2013 6:39 pm

Either a gov or get a good tachometer to watch your RPMs.

_______________________________________________
Head Forum Administrator ** Chat Moderator ** Facebook Page Admin
ATLTF Facebook Page ** Chatbox ** How To Upload Pictures

_X_ FORUM ANNOUNCEMENTS _X_


Have a question? Ask me! Type in "@Doug" in your post!

Your ATLTF Staff:
Administrators: @Doug, @MightyRaze, @"Doc Sprocket", @Stretch44875
Moderators: @TheRainbowBoxer, @AllisKidD21




Back to top Go down
MCRideout
Apprentice
Apprentice


Join date : 2013-01-28
Posts : 52
Forum Rep : 0
Location : Massachusetts

Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitimeSun May 05, 2013 9:51 pm

I should still open the case and check for damage right?
Back to top Go down
Sponsored content




Need some help in diagnosing a runaway throttle issues on 20hp v-twin Empty
PostSubject: Re: Need some help in diagnosing a runaway throttle issues on 20hp v-twin   Need some help in diagnosing a runaway throttle issues on 20hp v-twin Icon_minitime

Back to top Go down
 
Need some help in diagnosing a runaway throttle issues on 20hp v-twin
Back to top 
Page 1 of 3Go to page : 1, 2, 3  Next

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: