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Hit & Miss Gas Engine Discussion

Help with a Leroi?


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  #1  
Old 02-05-2007, 09:13:17 PM
Walt Roys Walt Roys is offline
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Default Help with a Leroi?

An engine followed me home from the Mid-west this winter. I think it is a LeRoi. Is there anybody out there know any thing about these engines. This engine was on a cement mixer and has a gearbox on the output end with a heavey 14 1/2 inches in diameter flywheel. It has a 2 1/2 inch rim. As you face the fly wheel end the manifolds are on the left. there ie also a open magnet magnito unit on the left. This unit has a 2 1/2 -3 inch raised B on the mag drive unit. This is a 2 cylinder vertical engine. The head is part of the square cast water tank on top. The right hand side if the engine is farely clean, with the dip stick low down an oval examination plate located at rod end level.

If any one has info on this engine please respond. Thanks.
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Old 02-05-2007, 11:24:40 PM
Ed Malcom Ed Malcom is offline
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Default Re: Help with a Leroi?

it sounds like a model mh. Look on the side opposite the mag and up toward the top of the lower main casting. there should be numbers that are the month , day and year casting date. Dont be surprised if they are upside down.Get in touch with me and i can help you out. Im now up to 15 le rois.Either e mail or 479-903- 3005 cell. Ed Malcom the le roi man in southwest mo.
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Old 02-05-2007, 11:41:58 PM
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Junkologist Junkologist is offline
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Default Re: Help with a Leroi?

Walt,
That letter "B" you mentioned makes it a Novo engine. You have one of the Novo Rollr engines. They used Timken bearings on the crankshaft and were built in the 1930's. If you look on page 352 of Wendel's BYB volume one at the engine on the upper right, you will see the "B" on the engine block. These engines were both hopper cooled and radiator cooled. Your engine is probably an FU or an HU model, depending on what the bore and stroke are.

Mike
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Old 02-06-2007, 01:18:41 AM
Walt Roys Walt Roys is offline
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Default Re: Help with a Leroi?

Junkologist,

I would sure like to talk to you. I think you may be correct on the ID of my engine. I spoke with Ed Malcom. He is the Leroi expert with lots of info.

The B that is on the Mag connecting houseing is about 1 3/4" high in a capital letter. I found a ser# of RU7653 stamped vertically on a flat serface by the fly wheel on the oposite side from the Mag and the manifolds.

May I contact you? if so how about a phone number or an E-Mail address. I would sure appreciate it.

My Phone # 509-689-3544 My E-Mail waroys@communitynet.org

Thanks for the help,
Walt
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Old 02-06-2007, 01:21:50 AM
Walt Roys Walt Roys is offline
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Default Re: Help with a Leroi?

Mike,
What is this BYB book you mentioned?
Walt
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Old 02-06-2007, 10:24:38 AM
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Bill Geyer Bill Geyer is offline
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Default Re: Help with a Leroi?

Hello Walt,
I have 3 NOVOs, but know very little. Didn't even know enough to spot the B like mike , however the RU in the serial number probably indicates the model. There is a model RU. I have a model S, CW, and AG. If you type in NOVO in search, quite a few threads will show up. Here is a link to one.
http://www.smokstak.com/forum/showthread.php?t=34724

The BYB refers to C.H. Windel's big yellow book "American Gas Engines" I thought there was a link from the Stak, I tried but couldn't find one.

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Old 02-06-2007, 10:37:06 AM
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Bill Geyer Bill Geyer is offline
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Default Re: Help with a Leroi?

Hey Walt, if you have an interest in old engines the BYB is a MUST. You can copy that page, and leave copies all around the house near Christmas time or your birthday
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Old 02-08-2007, 12:45:36 AM
Walt Roys Walt Roys is offline
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Default Re: Help with a Leroi?

Thanks Guys,
The engine is a RU Novo rollr engine. I have started to disassemble it and I have never seen a engine as well built as this one. This thing has about 3" timkin bearings on the crank. Now if I could just get the head off the thing and get it unstuck. Oh well those things make it a great project.

Does anyone know if there are any parts for these things? From where? Boy the info on these engines seems to be pretty skimpy.

Any help will be appreciated.
Walt
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Old 05-31-2019, 08:26:39 PM
Mackiebrat Mackiebrat is offline
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Default Re: Help with a Leroi?

Good Evening from Myrtle Beach.Just got an E-bay Treasure from Ohio.A back-up 50KW 480 volt generator set w/a Le Roi V8
Model 4540 Serial # 60X573 that runs pretty sweet.
I'm trying to figure out if this is an H540 155hp @ 2400 rpm.
Full bore 50KW power needs @ least 100 hp to pull it. So it seems the right engine to turn @ 1200 rpm and give 100 hp.We just got it in my shop today off the twin axle trailer.
I don't want to go too deep into it w/o a manual.
The plan is to make her pretty and to earn her keep as back-up power ,plus occasionally provide power for a heavy duty welding rig.
This engine sports LP Gas Plumbing w/a regulator. Or can run on Gasoline (A lot of it,)
Any ideas on manuals ? My business for over 55 yrs has been rebuilding generators & starters.I'm glad to find this forum and will help all I can. Glen
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Old 05-31-2019, 08:54:18 PM
ScooterBob ScooterBob is offline
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Default Re: Help with a Leroi?

@ Mackiebrat

While you have an old engine, you have posted in a section of this forum that is for single cylinder, big flywheel engines for the most part.

You'll probably have better luck posting in the Multi-Cylinder Stationary Engines section...

https://www.smokstak.com/forum/forumdisplay.php?f=112
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