IC opposed twin

Scrubcadet10

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I think the governor needs reset. All linkage is correct, I have no throttle control and the butterfly in the carb sits at WOT unless I manually move it.?
I'm not missing anything am i?

42A707-2653-e1
 

ILENGINE

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After setting the governor to its static setting and you still don't have throttle control then time to replace the governor gear.
 

Fish

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I think the governor needs reset. All linkage is correct, I have no throttle control and the butterfly in the carb sits at WOT unless I manually move it.?
I'm not missing anything am i?

42A707-2653-e1
What did you do to it to come to this problem?
Is this why you are working on it?

Or did you have a bunch of stuff removed on this while working on a different issue? I mean, are yoiu thinking that it is due to something not put back on correctly? Did you remove the carb for a rebuild, and now have this problem.?
 

Scrubcadet10

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It sat in a shed for 10 years or so.
It had this problem from the start, so I just manually moved the butterfly on the carb while I was working on it. It runs good, just no throttle control and when off, it sits with it at WOT.
 

Fish

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Go into that a bit.
How did you "move the butterfly". That is likely the problem area.
 

Scrubcadet10

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Go into that a bit.
How did you "move the butterfly". That is likely the problem area.
All I did was un hook the one linkage rod that went from the governor arm to the butterfly.
But like I said, the reason I moved the butterfly is because I have no throttle control. And I didn't want to start a mower that was sitting at WOT.
 

Tinkerer200

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As said above, Assuming you have reconnected the linkages you removed correctly, IF you have adjusted the static governor setting and still no governor control, then time to go inside as you have an internal governor problem. I can send you a Service Manual IF you like. Address below, put in proper format and remind me engine model number and what you want.

Walt Conner
wconner5 at frontier dot com
 

ILENGINE

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It is not unusual for the throttle to be setting at WOT when the engine is not running. The governor springs and in some cases the governor arm will hold the throttle open when not running.
 

Scrubcadet10

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Okay. adjusted the governor in accordance with the manual Mr. Walt sent me, fired it up, and while running with the throttle handle in what should be the idle position, it seems like its running in the full governed throttle position and if i moved the throttle lever to rev it up i was really concerned Mr and Mrs. connecting rod would put a new window in their house!

i will upload some pictures of all the linkage soon to be 100% certain i have it right....
 

Scrubcadet10

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I did some more tinkering with it, and I m leaning towards a few parts laying in the sump.....
 

Tinkerer200

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IF you are talking about the remote throttle control lever, are you sure it is adjusted correctly? Governor spring in the correct tension? Might want to consult your Service Manual a little more.
Walt Conner
 

Scrubcadet10

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I've adjusted everything that could possibly be adjusted, when it should be idling its running like you have the throttle in the full position, i hooked a spring from the engine to the throttle arm on the carb so it could idle while i toy with it.
I adjusted the static governor setting, and the adjustment for tension on the governor spring....no throttle control.
also adjusted throttle cable per manual.
 

Scrubcadet10

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I also unhooked the one linkage that runs from the governor arm to the plastic link on the carb,
and i turned the idle screw in to make it run faster, if im thinking right, should the governor arm move one way or another while speeding up or slowing down due to the centrifugal force inside on the gear?
 

Scrubcadet10

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I'm also wondering if it needs rebuilt, I notice a slight vapor coming out of the breather into the air cleaner, more noticeable on shutdown...
 

AVB

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The mechanical governor pushes the throttle vane to idle as the engine accelerates. The governor spring pulls the throttle vane to wide open as the engine slows. It then becomes a delicate balance at the governed engine speed. Without the governor spring the engine would only idle due to the governor push back. IF you are not getting the governor push back after the governor static adjustment then the internal governor has failed.

Note: The governor spring does not make the engine idle. Even a governed idle spring doesn't.
 

Scrubcadet10

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Thats it, I adjusted the static setting and the governor does not move.

What do you think about the vapor/smoke coming from the breather tube?
 

Romore

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That is normal in small amounts, the breather is doing its job. If it starts pushing oil then the engine needs major attention.
 

Scrubcadet10

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Another thing I've been meaning to ask, after about 10-15 minutes of run time, the rpms slow, even if I'm holding it at a higher rpm, I also notice it runs funny, not rough, but it kind of pops like very small backfires......I'm thinking valve lash?
 

Tinkerer200

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Not likely, these engines seldom have a valve lash problem and that is usually after someone did a valve job and flubbed it. More likely a loose valve seat, common with these engines. IF it is a valve seat, you can stake it back in place provided it has not wallowed out the block casting.

Walt Conner
 
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