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Oil Field Engines & Related Equipment

Superior 20 hp


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  #41  
Old 06-10-2015, 01:21:52 PM
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Default Re: Superior 20 hp

Small world aint it!
its really easy to flood on propane. you don't need near as much as you'd think to just make an engine run. now pulling a load is a different story...
On old engines I've never had any luck on starting them on propane, always primed with a snort or two of gasoline. So they'll fire a few times, then turn of the propane, and you've got to have some sort of valve in the gas line to find the sweet spot.
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  #42  
Old 06-10-2015, 10:20:25 PM
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Default Re: Superior 20 hp

I used ether with some success. I'm surprised that flooding would be easy, using a vapor like propane. I'll bet that's most of my problem. I've poured enough propane in it to start a battleship. Is it easy to clear out? When I had it running, I marked the valve where it ran the best. I have the valve upstream of the accumulator. Is that right or should it be downstream ? It's a brass ball valve that Mike had on it. Seems to work well.
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  #43  
Old 06-10-2015, 11:01:04 PM
Bob Willman Bob Willman is offline
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Default Re: Superior 20 hp

I would have the valve right close to the engine. A diamond valve is best as they are much easier to adjust especially when they are close to closed.

Bob
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  #44  
Old 06-11-2015, 09:39:13 AM
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Default Re: Superior 20 hp

I'll try that Bob, thanks. Would that make the accumulator tank useless having a restriction downstream of it? Or do I even need an accumulator since it won't be working hard?
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Old 06-11-2015, 10:20:50 AM
Bob Willman Bob Willman is offline
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Default Re: Superior 20 hp

As I understand things, the accumulator tank saves wear and tear on the regulator and provides a volume of gas for the engine to draw from on intake. If not for the tank the only volume of gas available would be the piping between the regulator an the engine and the capacity of the regulator . My accumulator is about a 20 gallon steel barrel. It looks like a standard 55 gallon barrel but smaller. During intake the pressure in the accumulator drops by an inch or two of water.

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  #46  
Old 06-11-2015, 10:59:41 AM
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Default Re: Superior 20 hp

With engines that require large volume of gas a secondary volume tank of low pressure is the way to go. Also run a large (1") gas hose from the secondary to to the carb and reduce to fit the carb at the carb.
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Old 06-11-2015, 11:45:57 AM
Andrew Mackey Andrew Mackey is offline
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Default Re: Superior 20 hp

The accumulator supplies a large volume of low pressure fuel for the engine to draw from. Your valve should be between the accumulator and the intake of the mixer. If the engine is flooded, turn off the valve and roll over a few times to clear the excess gas out. Excess gas should be cleared out within 3 or 4 revolutions. With a ball valve, only a slight opening would be needed. it doesn't take much of an opening to supply your engine. Pressure at the accumulator should be about 11 inches of water column (a little more than 4 PSIG). More than that and you will flood.
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  #48  
Old 06-11-2015, 01:19:21 PM
Bob Willman Bob Willman is offline
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Default Re: Superior 20 hp

I suspect you mean 4-5 ounces of water pressure - not pounds.

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  #49  
Old 06-11-2015, 04:28:44 PM
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Default Re: Superior 20 hp

10 1/2" of water column = 6 oz pressure.

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Last edited by Reed Engine; 06-12-2015 at 08:01:02 AM.
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Old 06-11-2015, 04:52:24 PM
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Default Re: Superior 20 hp

I can't wait to get my mag back so I can try these tips out. i'm on the right track now I think. Thanks. Trying to get a video posted.
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Old 06-11-2015, 10:45:53 PM
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Default Re: Superior 20 hp

https://www.youtube.com/watch?v=5GuQYpNnTfQ
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  #52  
Old 06-12-2015, 09:59:23 AM
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Default Re: Superior 20 hp

Thanks for the video. AND YEA.........I'm gonna have to build a 2 flywheel Ajax/Superior someday! That's just too cool! Hmmm....I might see if I can trade back for that little 6 1/2 X 8 I got from Reed years ago
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Old 06-12-2015, 08:28:40 PM
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Default Re: Superior 20 hp

Sorry about the 8 second clip, but that's all my cell phone would send. My son Jim is trying to help his computer challenged daddy the best he can. Try to get something longer on soon. It sounds pretty cool.
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Old 06-13-2015, 07:17:28 AM
JSWithers JSWithers is offline
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Default Re: Superior 20 hp

Quote:
Originally Posted by Doug Waggonner View Post
On old engines I've never had any luck on starting them on propane, always primed with a snort or two of gasoline.
We have several engines, mostly large to x-large, we run on propane and have had many more over the years. Very very rarely have we had to prime them with gasoline to get them to start. In fact, my son had a small gasoline engine that he couldn't get to run and he changed it over to propane to get it running and then switched it back to gasoline. It's a matter of practice and experience.

---------- Post added at 06:17 AM ---------- Previous post was at 06:13 AM ----------

Quote:
Originally Posted by Bone View Post
Sorry about the 8 second clip, but that's all my cell phone would send. My son Jim is trying to help his computer challenged daddy the best he can. Try to get something longer on soon. It sounds pretty cool.
You should be able to go into the camera settings on your phone and switch the video quality to a lessor setting to get a longer video to upload. Such as changing from 1080p to 720p or 480p or std. Something like that. The lessor quality video has less stuff to try to upload.
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  #55  
Old 06-13-2015, 11:33:07 PM
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Default Re: Superior 20 hp

Thanks for both of those tips JS. I have neither practice or experience on either of those topics. I will put it to good use. Experience is only received after you need it.
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  #56  
Old 06-21-2015, 01:54:26 PM
k0zak k0zak is offline
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Default Re: Superior 20 hp

I'm running my 20hp Superior on propane. I found early on that I needed to set all the air/fuel/timing settings (more fuel, more air, retarded timing) to different settings for starting than for running. Once I figured out the differences, it is easy to start and then change the settings for slow running. I haven't had to use gasoline or anything else to prime it. Mine is a 4 stroke and I have been using a tractor to spin it up so far. It will not even try to start if I crank it on my run settings unless the engine has warmed up.
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Old 01-27-2016, 08:16:00 PM
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Default Re: Superior 20 hp

from what I have found the first numbers are the year I have a superior and my number is 7191 which means it was made in 1907
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