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Small Air Cooled Gasoline Engines Briggs & Stratton, Clinton, Lauson, Maytag, Nelson, Wisconsin and other small air cooled engines. Sub forums for mowers, scooters and powered eqipment.

Small Air Cooled Gasoline Engines

Barn fresh model Y


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  #41  
Old 07-07-2014, 03:25:10 PM
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Default Re: Barn fresh model Y

The tin should be riveted to the mag plate, so I would not try to seperate them. Do not solder the new plug wire to the coil - That's a good way to damage the coil. Use copper core wire (Delco Packard 440, for example). Strip & tin the end of the wire, then run it through the grommet (if it is still there) in the backing plate and slip it through the eye of the coil terminal tab and bend it over. Carefully!
Any $10 modern muffler with 3/4"NPT threads will work. If you are dead set on putting a period-correct muffler on it, here are a couple of different styles if you are willing to pay $40+ for one.
http://www.ebay.com/itm/Briggs-Strat...item1c42afa57a

http://www.ebay.com/itm/Genuine-Anti...item58b04f3ffb
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  #42  
Old 07-07-2014, 06:01:41 PM
Rigaman Rigaman is offline
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Default Re: Barn fresh model Y

Ya. I bought a new muffler for $5 at the hardware store. I was gonna fabricate one that was more like the original. Might be a fun job down the road.

Thanks for the magneto info. The plug wire info helps a lot. I was scratching my head trying to figure out what to do. I see the rivets now.

Awesome. Thanks!

I should have this back together and running I no time!

---------- Post added at 06:01 PM ---------- Previous post was at 05:52 PM ----------

I need a cap for the breather too...
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  #43  
Old 07-07-2014, 07:05:42 PM
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Default Re: Barn fresh model Y

I seem to recall that there is an automotive freeze plug that is close enough to the right size to fit the crankcase breather. Check with a good auto parts store. Originally, there was a perforated steel "screen" in the bottom with a fiberous stuffing that looked like horse hair above it. Do not use steel wool as a replacement. It will shed tiny particles that will not be healthy for your engine. I have used the copper or stainless "Chore Boy" pot scrubbers, but if you cut it up to fit, make very sure there are no loose pieces that will end up in the oil.
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Last edited by John Newman Jr.; 07-07-2014 at 07:25:37 PM. Reason: Add pictures
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  #44  
Old 07-07-2014, 09:12:30 PM
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Default Re: Barn fresh model Y

Found reproduction air filter & starter clutch cover on Ebay. Not cheap, but accurate. I have dealt with the seller before. He has a lot of good stuff!
It all depends on how far you care to take your project. Your engine does not need these parts to run, but if you decide to go for a full restoration, at least the parts to complete it are available.
http://www.ebay.com/itm/Briggs-Strat...item588b7511dd
http://www.ebay.com/itm/Antique-Brig...item1c3779dd8b

Here is a Briggs Model H that I restored years ago. It is the same as a Model Y, but uses a float carb instead of a suction carb.



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Last edited by John Newman Jr.; 07-07-2014 at 09:22:33 PM.
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  #45  
Old 07-07-2014, 10:21:58 PM
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Default Re: Barn fresh model Y

That's a real nice model H. I like the float type carb much better with the gravity fed gas tank.

I plan on doing this all the way correct and complete. Maybe not at first, but sooner it later.

$38 for a little cup to cover the starter clutch seems like a lot. I'll be fine without one for now. I'll just keep searching and maybe a cheap nice one will find me.

My crank case breather has the horse hair looking stuff in it. It has the right screen part too.
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  #46  
Old 07-07-2014, 11:01:49 PM
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Default Re: Barn fresh model y

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Originally Posted by Rigaman View Post
Here is a pic of the gas tank stand. Real cool. Are these common? It seems like it would make this engine used for a mower or something not stationary. The bracket is cast iron.



---------- Post added at 02:01 PM ---------- Previous post was at 01:57 PM ----------

Those brackets are not real common at all and your gas tank is original. I believe your engine came off a mower like this one. Don't worry about your valve clearance either. It will be just fine as much as you will run it. I doubt there's very many Y models out there with the valve clearance in spec anyway.

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Old 07-07-2014, 11:34:06 PM
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Default Re: Barn fresh model Y

So that y originally came with an air cleaner on it since it was on a mower right?

That's awesome! Thanks!
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  #48  
Old 07-08-2014, 02:46:14 AM
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Default Re: Barn fresh model Y

I think I have seen that mower before....
Thanks for posting it. I would have never found it.
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  #49  
Old 07-08-2014, 10:51:29 AM
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Default Re: Barn fresh model Y

Even my fuel line looks identical to that mower.

I saw a video on YouTube of a mower just like it. That's what my engine came off. With the hand crank and tank bracket. And the tag says Sears Roebuck on it.

Real cool stuff. Thanks!

---------- Post added at 10:51 AM ---------- Previous post was at 10:43 AM ----------

Did that come with no briggs decal? If not that changes everything for me. I'll leave mine just like it is.
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  #50  
Old 07-08-2014, 05:02:20 PM
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Default Re: Barn fresh model Y

Oh this is neat. The original paint on the tank bracket is green

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  #51  
Old 07-08-2014, 07:30:15 PM
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Default Re: Barn fresh model Y

Does anyone have a parts list or exploded pic of the y carburetor?

How does the throttle with the spring and threaded rod work?

Also. Is the side that connects to the air flap governor supposed to move in and out? Mine seems pretty stuck.

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  #52  
Old 07-08-2014, 08:14:08 PM
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Default Re: Barn fresh model Y

Here is the carb section from an original Model Y owner's manual. Hope this helps you. I didn't find an exploded view of the carb, they just list the whole assembly. That slide valve will move in and out to control mixture volume to the engine. Moving it out of the carb body towards the governor vane will restrict the flow of fuel and air to the engine. The slide valve is brass. A small amount of heat applied judiciously and some Kroil or other petroleum based penetrant will help. Take your time.
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  #53  
Old 07-08-2014, 08:35:27 PM
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Default Re: Barn fresh model Y

Oh ok. That's what I needed to know. I'll get it moving free. I wasn't sure if it was supposed to move. I thought it should.

How does the other side with the spring and the threaded rod work? Does the rod push the brass part back out to control the rpm?
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  #54  
Old 07-08-2014, 10:45:37 PM
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Default Re: Barn fresh model Y

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Originally Posted by Rigaman View Post
Oh ok. That's what I needed to know. I'll get it moving free. I wasn't sure if it was supposed to move. I thought it should.

How does the other side with the spring and the threaded rod work? Does the rod push the brass part back out to control the rpm?
The light spring holds the throttle wide open until the engine gets up to speed and then the governor overcomes the spring and regulates the engine's speed by closing the throttle to a certain degree. The threaded rod is used with a nut on the outside of the spring to adjust the spring's tension. More tension means a higher governed speed for the engine.
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Old 07-08-2014, 11:06:45 PM
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Default Re: Barn fresh model Y

Oohhh. Ok. I get it. I see how it works now.

Cool. Thanks.

---------- Post added at 11:06 PM ---------- Previous post was at 10:57 PM ----------

I didn't think the slide valve was all the way through the carb. I thought it was just on one side. Since mine it stuck. The spring side looked like it was part of the pot metal carb body.
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  #56  
Old 07-09-2014, 02:11:42 PM
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Default Re: Barn fresh model Y

My check valve didn't have the spring or ball in it. I think they rusted into nothing.

Where can I get a new screen, ball, and spring?



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  #57  
Old 07-09-2014, 10:53:15 PM
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Default Re: Barn fresh model Y

There never was a spring in there. No need for it as the check ball just sits on the seat since the assembly is always vertical. I believe the check ball was brass or bronze. I have run across at least one of those where the ball was gone too. I have no idea how it could have escaped either. If you use a clean gas tank, don't worry about the screen. I have lots of those being used with no screen.
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  #58  
Old 07-09-2014, 11:13:35 PM
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Default Re: Barn fresh model Y

So it should be fine without the ball?
Maybe I can find a little ball bearing or something that will work.
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  #59  
Old 07-09-2014, 11:24:18 PM
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Default Re: Barn fresh model Y

Without the check ball the fuel will fall back to the level of fuel in the tank when it's shut off .
Otherwise the fuel will stay full in the tube .
They're never really a perfect seal though .
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Old 07-10-2014, 07:04:27 AM
Jeff LaCrone Jeff LaCrone is offline
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Default Re: Barn fresh model Y

It will be hard starting without the ball in the check valve because you will have to pull gas up by turning it over every time you start it. You can get new check balls. Probably even at your local hardware store. Take the check valve apart and take it with you and find one that fits. It has enough suction to lift the ball and pull fuel around it and when shut off it drops and stops the backflow of fuel back into the tank keeping it primed.
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