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Johnson Iron Horse


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  #1  
Old 10-10-2016, 03:56:49 PM
electrocutas electrocutas is offline
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Default Johnson Iron Horse

Hi,
I have just bought a Johnson 4 cycle Iron Horse X-512
complete apart from spark plug which is on the way.

What I would like to know is can anyone date the manufacture for me
it is Model X-512 and serial Number 123512
AND
What would have been its original paint color.

Thanks in advance
Electrocutas
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  #2  
Old 10-10-2016, 04:28:48 PM
EvilDr235 EvilDr235 is offline
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Default Re: Johnson Iron Horse

Built in Canada or built in the U.S. ? There may be information on Canada built motors. I have read that they never had records on U.S. built engines or they did and they were all destroyed when they quit building them in the U.S. depending which story you believe. I have a U.S. built engine model X515 and have been unable to find information on it far as engine size, horsepower and date of birth. I have it sitting on the shelf at the moment working on other projects.
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  #3  
Old 10-10-2016, 04:38:34 PM
Scotty 2 Scotty 2 is offline
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Default Re: Johnson Iron Horse

Hello all
Look under the name plate for the original colour.

Cheers Scott
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  #4  
Old 10-10-2016, 07:43:45 PM
Dick DeBuse Dick DeBuse is offline
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Default Re: Johnson Iron Horse

I have a couple of the same model. They are painted Olive Drab since they were made for the army during WWII. They are on re-fueling pumps, mounted in a tube frame similar to a generator.
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  #5  
Old 10-11-2016, 03:22:50 AM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Quote:
Originally Posted by Scotty 2 View Post
Hello all
Look under the name plate for the original colour.

Cheers Scott
Yes but unfortuneately Mr Green paint has had it off
and painted behind it !!
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  #6  
Old 10-11-2016, 09:29:35 AM
Mike Unwin Mike Unwin is offline
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Default Re: Johnson Iron Horse

Some info here http://www.oldirongardentractors.com...horse-engines/
Think Jamie has sent you to his site ,mine have all been black in colour. Cheers Mike
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  #7  
Old 10-11-2016, 09:44:21 AM
BHoward BHoward is offline
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Default Re: Johnson Iron Horse

I bought one like that new in 1946 or 7 and put it on a homemade motorbike. It was black and was 1 1/3 hp Cheers Bill H.
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  #8  
Old 10-11-2016, 10:04:54 AM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Hi Gents,
Yes from my trawling through the net I was leaning towards Black,
I think they actually look rather smart.
Now if I can just find its Birthday !!!
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  #9  
Old 10-11-2016, 04:13:35 PM
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James Bosma James Bosma is offline
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Default Re: Johnson Iron Horse

Johnson Iron - Horses were painted black with silver pulleys, breather cap and exhaust guard.
Some were made for Military use in Canada, U.S.A and allies
If its Canadian made we should be able to date it for you
If its a American made unfortunately there are no surviving records to date
There is a few of us up here in Canada trying to get more info on the American made ones in order to help date them.
So the big question is where was it made
Bottom of tag should tell you
If Canadian made it would have been made around 1947

If American Made it would be rated at 1hp at 2000 rpm
If Canadian made it would be rated at 1.34hp at 2400 rpm


I do not see the kick start peddle in the pictures, do you have the kick peddle Do you have a better picture of the back side of the engine

Jim
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  #10  
Old 10-11-2016, 05:06:36 PM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Hi Jim
Just picked it up at weekend, I will have a close look tomorrow
and get a better photo
As far as I know it never had a kick start peddle.

Cheers
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  #11  
Old 10-12-2016, 04:16:30 AM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Quote:
Originally Posted by James Bosma View Post
If its Canadian made we should be able to date it for you
If its a American made unfortunately there are no surviving records to date
There is a few of us up here in Canada trying to get more info on the American made ones in order to help date them.

If Canadian made it would have been made around 1947

If American Made it would be rated at 1hp at 2000 rpm
If Canadian made it would be rated at 1.34hp at 2400 rpm

I do not see the kick start peddle in the pictures, do you have the kick peddle Do you have a better picture of the back side of the engine

Jim
Hi James
As everything else in life.. Nothing is easy.. So obviously Its American
and not Canadian !. There are some cast in brackets that look like mounts for a kick start but no mechanism to use one.
Do you think it is a from a washing machine or something else ?
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  #12  
Old 10-12-2016, 07:02:45 AM
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Default Re: Johnson Iron Horse

Yes those castings are for the kick start that is missing and should be easy to find replacement parts, Canadian or American parts will work
As for being American made no records so dating is hard
Most likely was not on a washing machine
Most washing machines used the X400 series
These are utility engines used on various applications
As mentioned before some were used in fuel dumps in the military to pump gas, some were on water pumps, lawn mowers, etc etc
I cant remember how many times I hear the bicycle story when I have mine out to shows
Here is some pics of the missing parts

Jim
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  #13  
Old 10-12-2016, 07:42:49 AM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Quote:
Originally Posted by James Bosma View Post
Yes those castings are for the kick start that is missing and should be easy to find replacement parts, Canadian or American parts will work
Here is some pics of the missing parts

Jim
Hi Jim, Many thanks.
This will be my mid winter strip and rebuild project. So I may well look to add the kick start.
If anyone has parts at reasonable prices and is willing to ship to UK
please let me know.
Cheers Pete
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  #14  
Old 10-12-2016, 07:21:49 PM
EvilDr235 EvilDr235 is offline
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Default Re: Johnson Iron Horse

What type of threads are used on the bolts ? I read somewhere that Canada used the same thread sizes as the U.S. in the mfg of these engines. I remember 50 years ago struggling with Whitworth bolts on my English Ford Angila.
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  #15  
Old 10-13-2016, 03:21:04 PM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

Quote:
Originally Posted by EvilDr235 View Post
What type of threads are used on the bolts ? I read somewhere that Canada used the same thread sizes as the U.S. in the mfg of these engines. I remember 50 years ago struggling with Whitworth bolts on my English Ford Angila.
Need to check as have not started working on her yet.
Pete
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  #16  
Old 10-15-2016, 05:46:33 PM
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Default Re: Johnson Iron Horse

I checked the head bolt threads on one in the shop today and SAE seemed to fit fine for threads.
The exhaust is NPT thread

Jim
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  #17  
Old 10-16-2016, 02:36:16 PM
electrocutas electrocutas is offline
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Default Re: Johnson Iron Horse

I have no spark at the moment but the plug lead is absolutely done for.
I wont be starting on it for a few weeks as I have 2 other projects to finish off.
I have someone has a kick start assembly and original type flywheel so all being well she will be ready for next season.
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