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Antique Gas Engine Discussion

Unidentified Hercules Engine


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  #1  
Old 05-09-2005, 12:41:47 PM
ellinw02 ellinw02 is offline
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Default Unidentified Hercules Engine

I have a Hercules engine that has no tag and I acquired it almost completely disassembled. Someone took apart the base cylinder and water hopper, piston, valves, governor, push rod, rocker arms, igniter (I assume) gas tank and filler spout and gas lines. I found most of the main parts and obviously I have more searching to do. I decided to put what I had together, take some pictures, and find out exactly what model and horsepower it is and hopefully get some kind of list together of what I still need to find. The piston is a hair over 4 inches in diameter and the crankshaft throw is around 6 inches. The length of the piston and connecting rod (without the end cap that is missing) is about 17 inches long. The pictures of it are here Hercules Pictures
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  #2  
Old 05-09-2005, 12:48:58 PM
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Nick Nick is offline
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Default Re: Unidentified Hercules Engine

Looks like your standard garden variety model E, probably 3hp.


Cheers
NICK
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Old 05-09-2005, 01:35:01 PM
JKKD JKKD is offline
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Default Re: Unidentified Hercules Engine

I agree, Model E 3 hp.

Jamie
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Old 05-09-2005, 06:09:39 PM
Mac Leod Mac Leod is offline
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Default Re: Unidentified Hercules Engine

with the bore being a hair over 4 in. in Dia, I think it is a "F"---just a guess, mine has a 4 1/4 bore, 6 in. stroke and looks the same except the gov. on mine has the newer style fly weights...what is the Dia. of the fly wheels?...3 horse is 22 in.

just a guess again

Mac Leod
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Old 05-09-2005, 06:22:26 PM
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Default Re: Unidentified Hercules Engine

Quote:
Originally Posted by Mac Leod
with the bore being a hair over 4 in. in Dia, I think it is a "F"---just a guess, mine has a 4 1/4 bore, 6 in. stroke and looks the same except the gov. on mine has the newer style fly weights...what is the Dia. of the fly wheels?...3 horse is 22 in.

just a guess again

Mac Leod
It's not a model F, if it were the hopper lip would not be as flared and oiler pipe would come out behind the hopper opening rather than through it. Look in Glenn Karch's book pg 26, then figures 4 and 5 on pg 27.

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NICK
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Old 05-09-2005, 07:40:24 PM
Mac Leod Mac Leod is offline
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Default Re: Unidentified Hercules Engine

yeah, I shoulda paid attention to the hopper and oiler, whoops...I do not have a copy of glens book-someday... hopefully soon...I have prior obligations before I spend money on a book,,,I will get one though

thanks for correcting me...

Mac Leod
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Old 05-09-2005, 09:20:47 PM
Kevin O. Pulver Kevin O. Pulver is offline
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Default Re: Unidentified Hercules Engine

Don't worry Mac, buying Glenn's book is NOT like trying to finance the Big Yellow Book of engines. It shouldn't take you too long to save up for it.
Kevin
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Old 05-09-2005, 10:47:54 PM
Gasengn Gasengn is offline
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Default Re: Unidentified Hercules Engine

Yep, that is an early 3 HP Hercules. The flywheel counter balance and the 4" bore tells that story. It probably was in the 70,000 to 90,000 serial number range. I wish I knew when the change was made to the 4 1/4" bore. I assume that the engine has two 3/8" screw holes for a cast guard. The earlier 2 3/4 HP would have had a sheet metal guard and 12-24 holes.

Glenn

P.S. You can get my book from Harry.
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Old 05-10-2005, 02:23:08 AM
ellinw02 ellinw02 is offline
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Default Re: Unidentified Hercules Engine

Yes it has the two holes on the back for the cast iron crank guard and if it still had the oiler pipe it would come up through the hopper opening near the back. I'll have to get back to you on the diameter of the flywheels and the exact bore of the piston.
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