throttle stuck open

Bens n's

Member
The linkage and carb are working fine. When you back off the throttle you hear it make a zzzzzzzzz sound like a gear is stripped. The linkage all goes into a little box which is where the zzzzzz sound is coning from. It looks like there's probably oil in the box, so I wanted to hear your thoughts before tearing into it. Anyone experienced this? Any reason I can't take it apart to see what happened?

Also, if I manually twist the throttle from the side of the carb, I can get more rpm's out of it. In other words it will rev higher by hand than through the throttle bar by the staearing wheel. Is this normal? Should I adjust to get max throttle out of it?

Thanks
 
(quoted from post at 04:06:49 10/11/14) The linkage and carb are working fine. When you back off the throttle you hear it make a zzzzzzzzz sound like a gear is stripped. The linkage all goes into a little box which is where the zzzzzz sound is coning from. It looks like there's probably oil in the box, so I wanted to hear your thoughts before tearing into it. Anyone experienced this? Any reason I can't take it apart to see what happened?

Also, if I manually twist the throttle from the side of the carb, I can get more rpm's out of it. In other words it will rev higher by hand than through the throttle bar by the staearing wheel. Is this normal? Should I adjust to get max throttle out of it?

Thanks

what model tractor are you talking about?
 
Whoops. Sorry guys. In my brain everyone knew what I had from my last thread. :? I have an early model 8n.
 
on an N, hand throttle goes to governor, then gov goes to carb.

post a pic of this black box yours goes to.
 


The linkage comes from the carb and goes to the pictured little box where there is apparently some type of gearing. You can see the oil tube in the picture as well.
 
I see no reason you cant take it off and investigate...make sure you put the 2 bolts back in the correct holes or you'll have bigger issues. I believe its short bolt on top long bolt on bottom
 
Realizing now that this "box" is the governor, how does it work exactly? Will I need to replace oil somewhere when I take this apart? Also, my n has been pieced together with 9n stuff at some point. If I have to replace this governor housing, how can I tell which I have? Block does say 8n but the number on the very bottom of the motor says 9n. :(

Also, do you think there is any harm in running it until i have time to make the repair?

Btw, I have always called the little throttle flapper in the carb a governor, hence the confusion. I have never seen anything set up quite like this one.
 
(quoted from post at 06:56:08 10/11/14)

The linkage comes from the carb and goes to the pictured little box where there is apparently some type of gearing. You can see the oil tube in the picture as well.

I am not seeing the rod from the throttle quadrant! short rod to carb is there but do not see long rod, just the spring end of one.
 
Mine does the same. When I throttle it down the balls in the
governor rub on the housing. If you took it apart you would see
a little circle cut all the way around by them.

Things are just worn in your governor. They get that way. I just
throttle down a little slower and I do t hear it. If your governor
isn't working then replace it, but otherwise just assume it is the
tractor reminding you of its age.
 

Your not going to lose any oil except what itty bit is in the governor when you pull it off...so no you do not need to replace any oil...Should say 8n or 9n on the housing...clean it off and look real good. But that is an 8n governor...I believe 9/2n's had 3 arm govenors...but I think the housings are pretty much identical the last time I compared them. What number on the very bottom of the engine? It was common to swap parts on them. Whatever they had to do to keep them working.
 

Sounds like yer tractor's got a ""Squeeze Box"....


Ok those of you who think this is about six, is only because haven't experience with the accordion.

Mama's got a squeeze box she wears on her chest (you wear an accordion, a musical instrument, colloquial name is a "Squuezebox" it has a strap that goes around your neck to support it, worn on top of the chest)
And when daddy comes home he never gets no rest (it can be played loudly)
Cause she's playing all night and the music is all right, (She's loves this instrument so much, she is playing it constantly, disturbing everyone's sleep. )

Well the kid's don't eat and the dog can't sleep, there's no escape from the music, in the whole damn street (playing it instead of making dinner)
She goes, squeeze me, come on and squeeze me, come on and tease me like you do (instrument can be slowly pumped, teasing air over the reeds, producing a softer harmonic sound)
It goes in and out and in and out and in and out (this instrument has bellows which forces air through reeds as you compress (in) and decompress (out) it, so you have this constant pumping action to produce beautiful harmonic music. Very similar to the way a harmonica works, except of course you don't inhale or exhale through it with your mouth, and a squeezebox has a more dynamic range than a single harmonica.


http://www.youtube.com/watch?v=zzsjUI754Yo
 
I think the ball bearing inside your governor have
cut a deep groove on the inside of the housing. if
you look close at your photo you can see a ring
around the outside of the housing where the balls
are on the inside.

I have seen governor balls in N's wear holes
completely through the housing.
 

So I would guess at this point there's no harm in running it, because if the housing has been grooved, I'll have to replace the whole assembly anyways. Is there a particular cause to them wearing out in this way or is this just ban inevitability? Also, with it warn out like this, should I notice a loss of power u derived a load?
 

You can keep it as is and not hurt anything as long as you are willing to put up with it.

Me I'm an anil (Purposely spelled this way) SOB, just knowing something ain't working right leaves me sleepless until I make it right. What better time to learn. Take her apart and see whats wrong. Each part of that 8N governor can be had.

Hell I take everything apart when it works right just so I know what it supposed to do when it ain't working right.
 

I totally get that. I have learned a ton about this tractor and almost all of that is because I took something else apart. I'll definitely want to fix it, but would rather wait until after I get my fields brush hogged. Looks like its a pretty expensive part. I'm seeing $170 shipped for the housing and assembly.

So will I lose power with it warn out, since its primary function seems to be maintaining PTO speed under load?
 

Don't assume that you need to replace it with a new one. And yes they are expensive. Just open her up when you can and replace only what needs replacing.

Primary principal of a governor is to govern engine speed under a variety of loads placed on the engine. You may stall when you plow and it it hits a hard patch, up a hill, mud hole etc.

I dont see how you gonna hurt anything running it that way. Probably been running that way for many years. If it would of hurt, it would have been hurting by now.
 
I have 2 8n govenors with the same "ring" I think your seeing. Its how the case is at least on the 2 I have off. I'll take a pic when In a bi .
 
There's no reason to let this go on and wear the housing and put metal fillings in the oil.4

Simply add a shim next to the snap ring on the governor shaft so the cup can't move far enough rearward to make enough of a gap so the balls can no longer extend past the cup and rattle against the case.

Or, if the balls are badly worn, they are cheap to replace.
 
(quoted from post at 04:08:03 10/11/14) I think the ball bearing inside your governor have
cut a deep groove on the inside of the housing. if
you look close at your photo you can see a ring
around the outside of the housing where the balls
are on the inside.

I have seen governor balls in N's wear holes
completely through the housing.
mvphoto11847.jpg
 

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