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Oil Field Engines & Related Equipment

My latest purchase, a 14.5” Bore 35 HP Superior, or is it?


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  #21  
Old 12-20-2010, 08:00:54 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

You guys who live in Ohio are very fortunate to have all those nice old engines still hidden around.
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Old 12-20-2010, 10:53:42 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Ok here are some of the pictures i took of the casting nomenclature on my 35 as follows; what apperars to be the original Rocker arm has no markings and the other 2 are marked OOCO 35 HP ,
The Carb and exhast valve box, OOCO 35Hp.
What appears to be the front water cover, 35H SUP 106S.
the cover for the valve box, 35 40
The cylinder is marked X915
Also notice the cylinder casting has a very rough finish which may indicate a early build date of this 35.
More to come
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Old 12-20-2010, 11:01:55 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Are these engines two stroke?
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Old 12-20-2010, 11:10:35 PM
Rod Fielder Rod Fielder is offline
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Quote:
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Are these engines two stroke?
i believe they are 4 stroke. i have a 20 superior 2 stroke. no valve boxes, rocker arms, valves.

rod
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Old 12-20-2010, 11:20:17 PM
94dave97 94dave97 is offline
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

More pictures,
The other side of the cylinder is marked, OOCO 35 HP.
The cylinder heads I have for the 35 (1 used and 1 NOS) are both marked FAYFY CO. and were obviously cast a different time from the rest of the engine as the are of a much smother finish than the rest of the engine,
Also i included a picture of the side shaft,
As usual any info is appreciated. Dave
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Old 12-20-2010, 11:24:22 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

There used to be a few Superiors around here in powers but by the time I was around them the pistons had been removed and a Minneapolis Moline 6 cylinder was belted to the flywheel and the old engine was only a jack shaft to drive the power. As Superior evolved into Ajax I just always assume the were two strokes but then I got to looking for the fuel mixer and ports. I need to find one and give it a look over.
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Old 12-21-2010, 12:15:18 AM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Dave
On the rocker arm that has the cam roller is cone shaped casting. That is your compression relief roller. They made two styles, one like yours and one that doesn't have the cone shaped handle. As soon as the engine fires a time or two you pull that cone off and it goes to full compression.
These are four cycle engines.
Looks like you've got most of what you need to get her running.
Keith
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Old 12-22-2010, 11:11:10 AM
Walt Roys Walt Roys is offline
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Did all superiors have a compression release on the rocker arm? What about the 20HP? I hope these things start easy, I have no idea how you could get past the compression stroke without some kind of release, bump start, holding the intake,4 men or something. Maybe some of you guys that own them could give a starting procedure. I'm a newby at these big engines with so much to learn and don't want to end up DEAD half way through the roof. Man, they are facinating !!!!!!
Walt
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Old 12-22-2010, 12:21:25 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

hey walt

is your 20 a 2 cycle or a 4 cycle

rod
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Old 12-22-2010, 12:24:32 PM
Walt Roys Walt Roys is offline
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

4 cycle
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Old 12-22-2010, 02:08:43 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Quote:
Originally Posted by Walt Roys View Post
Did all superiors have a compression release on the rocker arm? What about the 20HP? I hope these things start easy, I have no idea how you could get past the compression stroke without some kind of release, bump start, holding the intake,4 men or something. Maybe some of you guys that own them could give a starting procedure. I'm a newby at these big engines with so much to learn and don't want to end up DEAD half way through the roof. Man, they are facinating !!!!!!
Walt
Yes Walt, look at the sideshaft end of the rocker arm. There is a small shaft that sticks out of the rocker arm. That is where the decompression roller goes.
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Old 12-22-2010, 09:05:38 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Walt
I'm sure others have more experience than me but here's what I do. Prime the engine with gasoline. Put the decompression roller on. retard the spark to just past TDC. Set your gas/propane valve to just barely on. Start turning the flywheels. With any luck it will fire and take off. Remove decompression roller, advance spark, fine tune fuel mixer. I leave my choke on all the time.
I know a guy who does much the same thing except turn the flywheels. He gets it all set up with the piston a little past TDC and then trips the mag. It will fire and off it goes. I've tried this but haven't figured it out yet. When my engine is ready to fire the mag trip is tight and I can't get a screw drive in there to manually trip the mag. Anybody know what I"m doing wrong?
Keith
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Old 12-23-2010, 12:48:53 AM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Your right on Keith. That's how I started my 35. And only twice "when no one was around to see it of course" I got it to start by priming with gasoline, rolling it backwards again compression then flip the mag timing lever from stop to run. I never could make it start like that when someone was watching But once you figure out what your engine wants to start, they really aren't hard to start by just cranking them over. But you will need the decompression roller for sure! Or if you want to, use a happy starter! You've probably seen them before, they are a gasoline engine powered starter with a rubber type friction wheel. Just start ur little engine, step on the pedal and away she goes.
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Old 12-23-2010, 01:19:56 AM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

The first few times I started our 25 we belted it to a tractor. I'd recommend this to get your engine "dialed in". The adjustment on the propane valve (diamond valve) is EXTREMELY sensitive. Once I got it set I didn't move it but slightly by tapping with a wrench handle. I actually put a second gas shut-off valve between the fuel source and the diamond valve for ON/OFF control of the fuel. I use the diamond valve to regulate the speed from 60-100 RPM.
After starting it with a belt a few times I rigged up a two cylinder Hercules power plant with a small tire rubbing on the Superior flywheel as a Pony motor. I used this for a while until I got comfortable with the engine and figured out how to start it by hand. While the pony motor is still mounted on the engine I'm planning on removing it and mounting a cooling tank where it now sits.
All this talk makes me want to go out and start the Superior.
Keith
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Old 12-23-2010, 09:20:42 AM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Kieth and Doug, I sure apppreciate the info. You guys are getting me excited about working on this engine. Does it really run as slow as 60-100 rpm? That would be really neat. I have to pinch myself and remember it is a long way from where I am on the project and getting it to run. It is encourageing though.
Walt
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Old 12-23-2010, 08:12:33 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

has anyone ever seen a Superior w/ hit and miss governor? Ive read this somewhere that there was, but Ive never seen one.
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Old 12-23-2010, 08:52:48 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

-------------------------------------------------

20 hp superior 2 cycle


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Old 12-24-2010, 01:52:30 AM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

100 rpm is no problem what so ever. I've had mine at about 55 RPM but then I get scared because if it stops you have to start it up again and in 95 degree heat I don't want to do that more than necessacary. Therefor I usually run mine in the 75-100 RPM range and sit back and watch her run. Your 35 HP with heaver flywheels will probably run slower, easier. I'm sure there are other other things to do to make it run slower like retarding the spark and running it with the compression release cam on but I've not tried that yet. I've only restricted the air and fuel.

The only Hit and Miss I've see was a home made governor system. I'd really like to see a factory made hit and miss system.

Rod, nice two cycle, thanks for sharing.
Keith
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Old 12-24-2010, 02:45:13 PM
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

That's paul wolcott from nj starting it. He has quite a lot of oil field engines and some tractors also. I got this one from him last spring and have it running at least 4 times a week in front of the shop.


Rod
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Old 12-26-2010, 02:48:36 AM
Walt Roys Walt Roys is offline
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Default Re: My latest purchase, a 14.5” Bore 35 HP Superior, or is it?

Thanks Doug, I don't think that piece is on my rocker arm. From the picture can you tell me wheather that is true or not.
Walt
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