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Toy steam engines run on compressed air help please


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  #11  
Old 12-27-2016, 09:16:59 PM
darrelld darrelld is offline
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Default Re: Toy steam engines run on compressed air help please

I recently purchased an "Ultra quiet" air compressor from Menards. I intend on using for such purpose. You can actually visit with the compressor running close by. Been making my adapters for Wilesco and Jensen engines, Empire, Weeden and Mamod next. Where do you find replacement heaters for Empires and perhaps a Jensen 45? Darrell
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Old 12-27-2016, 10:14:54 PM
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Junkologist Junkologist is offline
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Default Re: Toy steam engines run on compressed air help please

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Originally Posted by darrelld View Post
I recently purchased an "Ultra quiet" air compressor from Menards. I intend on using for such purpose. You can actually visit with the compressor running close by. Been making my adapters for Wilesco and Jensen engines, Empire, Weeden and Mamod next. Where do you find replacement heaters for Empires and perhaps a Jensen 45? Darrell
Here is a place that will custom make heaters to your specs. I know another collector had them make a heater for an Empire engine. I have no experience with them myself.

http://heatandsensortech.com/

Your only option for a Jensen 45 heater repair is to wind a new element with new nichrome wire of the same spec as the original. Many times it's just a bad connection inside that is easily fixed, if you get lucky.
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  #13  
Old 01-05-2017, 07:41:57 PM
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Default Re: Toy steam engines run on compressed air help please

Mini-fridges often use very small compressors, which make great very quiet air pumps. The only downside is they push a lot oil out of the discharge - which would probably be beneficial for your model engines anyways.

Just remember to add some kind of light oil into the intake of the compressor every so often.
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Old 01-06-2017, 02:40:42 PM
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Default Re: Toy steam engines run on compressed air help please

R. Kern, Here’s my setup I came up with when I was in 5th grade & wanted something compact & lightweight to take to the shows & run my small steam engines. A Maytag twin with one cylinder used as an air compressor cylinder.

It had a tight-fitting gasket on the back of the compressor cylinder that slid around the back cylinder lip to block the transfer port of the compressor cylinder off from the crankcase fuel & air. Holes were drilled on each side of the cylinder transfer port on the compressor side to pull intake. The exhaust port was also blocked off by a gasket. The spark plug was replaced with an outlet check valve. The oiler was added to help lubricate the compressor side & it also puts oil in the air line to lubricate the steam engines or whatever you’re running with the air.

I ran it like this for years without any problems. The compression (dead volume) space in the compressor cylinder was not changed but it’d still pump up to 65 lbs. or more. I made an adjustable outlet line regular/pop-off safety that can be seen in pic 3 below (the brass piece sticking up by the flywheel). The compressed air line connects to the engine on the backside.

The engine is fairly quiet with the ball muffler & small exit holes. It’s always run nice & steady. With the compressor cylinder blocked off from the crankcase, it’s not robbing the crankcase of the scavenging air & fuel so the power side gets a little more than it usually would, & the compressor gives it a little bit of a load.

-Nick
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Old 01-06-2017, 02:42:27 PM
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Default Re: Toy steam engines run on compressed air help please

I also made up fake literature showing that it was an original outfit. This was before photoshop & no computer back then so itís a little crude; it was done on an old type writer I found in the trash at school. Had a lot of fun with the literature & compressor at the shows.

The last two pics are from 2003; I was curious how the gasket that was blocking the compressor transfer port off from the crankcase was holding up. It looked fine & I could have left it but I decided to make it a little nicer by actually cutting a piece of steel to braze & block the port off from the crankcase. The pics are a little blurry but see pics 1 & 2 below.

For a neat, lightweight, quiet & portable air compressor, this Maytag compressor is hard to beat.

-Nick
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Old 01-06-2017, 02:56:39 PM
Andrew Mackey Andrew Mackey is offline
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Default Re: Toy steam engines run on compressed air help please

Cool conversion NAR! great job
Andrew
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Old 04-06-2017, 05:23:19 AM
Ohio Farm Ohio Farm is offline
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Default Re: Toy steam engines run on compressed air help please

I contacted Heater & Sensor Tech a couple of weeks ago about custom Empire and Weeden heaters. They said they no longer make heaters for toy steam engines.
Weeden Steam said they will have a new supply of cartridge heaters coming soon, for the Weeden 43 &44.
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