Lauson Model Type RAY-825-6

This engine was one of the first "small engines" Lauson built. Engines of the Model Type RAY were built from the early 1930's through into the early 1940's. This engine is an early model, and was built specifically to power refrigeration equipment. The PTO output powered the refrigeration compressor while the shaft protruding from the magneto side of the engine drove a fan to blow air across the heat exchanger.

Category:

Autos & Vehicles

Tags:

• Lauson
• RAY

[SmallEngineMechanic]

Thats a nice one Craig. Where do you source your thin copper fuel line from?

[CraigDeShong]

3/32 thinwall copper tubing is a standard item at the local plumbing supply house, and is sold by the foot. Lowes may carry it also.

[krankiev]

very very nice antique engine there. What do you use in your antique engines for fuel?

[CraigDeShong]

I started using straight coleman camp fuel a few years ago. I mix in just a little marvel mystery oil. It is about the right octane for these engines, and they seem to use it just fine. It is easy on the paint, and it's evaporate doesn't leave a residue to clog the carburetors. If I were working these engines I might choose differently, but to just sit on the stand and go put-put, it seems to be a good choice.

[1944johndeerel]

yeah that does make sence. i have a couple old coleman lanterns from the

50's and the one that i bought had really old gas in it that still was good!

when i am done with my engines i just turn off the fuel valve and set the choke about half way to draw all the fuel out of the carb so my fuel system stays clean and it seems to work well for me. we all have our own little systems i guess.

[CraigDeShong]

John

I usually use less than five gallons of Coleman fuel per year, (yea- I don't run them very much do I) so the cost of the fuel isn't that bad, and it greatly out weighs cleaning all those fuel systems over and over.

[1944johndeerel]

high octane fuel isnt the best idea for old engines unless they were designed for it. they tend to run alot hotter ive been told. i have heard of people using coleman camp fuel for quite along time now. i guess its closer to the octain that gasoline was back when these engines were new. i just run regular unleaded with a splash of marv's mystery oil, and i only fill the gas tank with as much gas as i am going to use so it doesnt go bad on me, coleman fuel is just so expencive these days.

[krankiev]

sounds like a great idea, it shouldn't go stale fast. I thought high octane racing fuel might be good but I don't know what the lead would do to these little motors.

[cap10323]

@dannyscam DITTO!

[DannysCam]

nice