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GT 16 Engine Surge


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#1 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 08:26 PM

Hey guys, new to the forum. Picked up a nice GT16 on a trade and have since starting acquiring attachments and have been playing with it. Runs like a dream. Only issue I am running into is that it occasionally surges. Likes almost dies, then recovers. But only sometimes. I swear it is electrical since I've checked everything mechanical.

I jumped out the seat switch. My next question is whether the park/start switch could be causing this issue? My knowledge tells me it only ensures park portion to start, but could it be killing the motor when in forward or reverse?

Thanks guys!
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#2 637Yeoman OFFLINE  

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Posted March 26, 2017 - 08:52 PM

Does it cut out, or idle down to the point of almost dying?

And welcome to the forum!


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#3 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 08:55 PM

I would say it idles down to almost dying. Does it on all throttle positions and will actually die when it does it on idle.

Only reason I say the park start switch is because when it does it, if I put it back in park start it smoothes right out and stops doing it. Put it in forward or reverse and it starts surging again.
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#4 larrybl ONLINE  

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Posted March 26, 2017 - 08:56 PM

Gas cap vent, Collapsed fuel line, dirty filter Air leak in the intake manifold or carb throttle brass bushings.. Eliminate those before getting into the more complex electrical.



#5 larrybl ONLINE  

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Posted March 26, 2017 - 08:58 PM

My money is on the gas cap vent.



#6 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 08:58 PM

Larrybl, I have. I put a new fuel filter, new air filter, checked for air leaks and inspected all fuel lines. Tractor will do it randomly under no 1 specific condition.

#7 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 09:00 PM

And the fact that it smoothes out when I put the lever back in park start tells me electrical. But I will check fuel tank vent tomorrow by removing cap if it starts to surge.

#8 larrybl ONLINE  

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Posted March 26, 2017 - 09:01 PM

You didn't mention the fuel cap vent. How old are the fuel lines?



#9 larrybl ONLINE  

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Posted March 26, 2017 - 09:02 PM

A safety switch will either be go-or-nogo.



#10 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 09:03 PM

I have no idea. I personally haven't swapped them and have only had the tractor a few months. They aren't dry rotted or anything but are a little dirty (on the outside).

I will definitely check the vent tomorrow.

#11 larrybl ONLINE  

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Posted March 26, 2017 - 09:06 PM

Make and model + Serial will let us know how old the tractor is.



#12 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 09:09 PM

Ariens GT16 (model 931023)
Serial number 002151

#13 637Yeoman OFFLINE  

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Posted March 26, 2017 - 09:12 PM

I would say it idles down to almost dying. Does it on all throttle positions and will actually die when it does it on idle.

Only reason I say the park start switch is because when it does it, if I put it back in park start it smoothes right out and stops doing it. Put it in forward or reverse and it starts surging again.

I would listen to larrybl, if it starts moving, and then almost dies, it is most certainly a fuel problem, a switch will either work, or not work, so i would eliminate that from the mix of possibilities 



#14 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 09:18 PM

I'll look a little harder tomorrow. The putting it back in park start and it running perfectly baffles me though. I can take it out and not even start to move and it'll start doing it.

I've gone days of it working perfectly all day and then others where I can't even get it out of the garage with our it acting up.

Edited by BoilerBrown, March 26, 2017 - 09:21 PM.


#15 BoilerBrown OFFLINE  

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Posted March 26, 2017 - 09:21 PM

Thank you, guys.




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