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Small Air Cooled Gasoline Engines

Barn fresh model Y


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  #1  
Old 06-30-2014, 04:37:05 PM
Rigaman Rigaman is offline
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Default Barn fresh model Y

I just picked this up yesterday. I had to have it. The guy had a tag sale and I asked if he had any old engines. He pulled this out. It's missing the air cleaner, muffler, and the cap for the clutch.

I think I paid too much. He wanted $100 and I wound up giving him $80. But I have always wanted an older briggs like this. Where are the best places to get parts for this? I'd like to restore it. But I might just clean it up and leave it sweaty looking.

I also got a shroud with a fold out crank that starts the motor instead of a recoil. I think it came off a lawn mower.








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  #2  
Old 06-30-2014, 05:21:12 PM
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Default Re: Barn fresh model y

Hello & Welcome to the Stak!
A Briggs Model Y is not rare - They made over 338,000 of them, but they are good, simple, dependable engines. Lever start is not as common. Yours may have been on a lawnmower. Foot pedal (kick) start is much more common and these saw a lot of use on rural washing machines. Having a proper gas tank is a big plus. Air fliters were not standard, but were an option. Originals are very expensive, but reproductions are available. The starter clutch cover is another pricey & hard to find item. Ebay is a good place to find parts. Mostly used, but NOS stuff comes up from time to time.
With the Serial Number from your ID tag, it can be dated to the month that it was built. Here is a link for a page that shows mfg dates. Scroll down to the Model Y table. Numbers shown are the last unit made that particular month.
http://asecc.com/data/briggs/data3.html
Good luck & Have fun!
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Old 06-30-2014, 06:38:27 PM
Rigaman Rigaman is offline
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Default Re: Barn fresh model y

Awesome thanks. I know they are the most common. So I should have paid less. But I didn't know if it was rare or common at the time. After reading a bit I know they are very common now.

Ya it seems like it should run. I pulled the head and the exhaust valve was stuck open. It had squirrel nutts in it. After I shook the nutts out and gave it a little persuasion it moves up and down freely. It has decent compression now.

Is my gas tank right? I'll look up the serial number.

---------- Post added at 06:38 PM ---------- Previous post was at 06:33 PM ----------

Looks like feb 1937

Says 60689
Model y
Serial 331773
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Old 06-30-2014, 07:29:14 PM
Partsman Partsman is offline
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Default Re: Barn fresh model y

Hi I am a sponsor on this site, I have parts for your engine. I would like to help you with information or parts if I can. Thanks Jim
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Old 06-30-2014, 07:58:31 PM
Rigaman Rigaman is offline
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Default Re: Barn fresh model y

I will let you know what I need as I dig deeper into it

It doesn't seem to be getting spark either. Maybe I'm not turning it over fast enough. But I hope this doesn't get too expensive. If I find another to use for parts, what's a fair price to pay for one of these model y engines? I don't want to buy too much, so I'll fix what I have or buy a parts engine or just buy the things I need.

I will need the clutch cover part, and an exhaust. I will probably need a new elbow for the exhaust too. Mine looks pretty toasty.

Is there value in keeping these original or should I restore it?
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Old 06-30-2014, 08:26:06 PM
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Default Re: Barn fresh model y

Clean the points gap them at 20 thousants and see if you get spark.
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Old 06-30-2014, 08:42:46 PM
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Default Re: Barn fresh model y

Ok. I'll do that. I'll keep you posted on the progress.
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Old 07-01-2014, 12:40:55 PM
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Default Re: Barn fresh model y

If the point gapping does not work get the condenser tested or just buy a new one. They are still available from Briggs for around 11.00 part number 29861. I find them bad at least 60% of the time. If the Briggs counter person balks at the part number get them to put it in the computer and they will learn something.

Gary
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Old 07-01-2014, 07:03:23 PM
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Default Re: Barn fresh model y

How do I get the flywheel off? The manual says tap on the shaft with a hammer and block of wood.

---------- Post added at 06:48 PM ---------- Previous post was at 06:05 PM ----------

Oh ok. I'll just use a puller.

---------- Post added at 07:03 PM ---------- Previous post was at 06:48 PM ----------

My gas tank is pretty rough. I don't think it can be repaired. The bottom has a hole rusted through where the gas line runs into the tank.
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Old 07-01-2014, 08:00:51 PM
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Default Re: Barn fresh model y

80.00 is not a bad price for a Y if it has a good gas tank and especially with the hand start. They seem to bring a higher price than they should at the engine shows for some crazy reason.

You can watch ebay for a replacement gas tank or if the hole is real small you can seal it with the gas tank sealer products sold at a number of places like car parts places or Starbolt an advertiser on this site.
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Old 07-01-2014, 11:33:22 PM
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Default Re: Barn fresh model y

The hole looks pretty bad. The gas cap is pretty stuck on too. When I tried to really give it some force I could see the tank start to bow on the top. Like it wanted to cave in on itself. Feels like real thin metal.

Is that a check valve in the tank? I can see the whole bottom of it through my tanks bottom. About a dime to a nickle sized hole. Probably bigger. I haven't cleared out all the rot yet

---------- Post added at 11:33 PM ---------- Previous post was at 11:30 PM ----------

The good thing is every bolt seems to be original. And nothing is stripped or stuck.

The motor is held down on the board by square nuts. It has a cool gas tank bracket/stand too.
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Old 07-02-2014, 02:58:56 AM
vinceostapowich vinceostapowich is offline
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Default Re: Barn fresh model y

I doubt the gas tank is original.
Either buy one or make one to replace the existing.
If it was orig,it wouldnt matter ,a hole like that is the end of its usefull life.
As far as spark,start testing components.
I'm about to put up another video on coil testing,,I'll let you know when its on youtube.
A Fellow named Craig DeShong on this site taught me an awfull lot about coils and spark systems,and to him I am very grateful.
Basically,once I have set everything straight with the system,if i briskly rock the north and south magnetic poles of the rotor past the coil armatures with my hand I can make strong spark.
If you cant get spark otherwise,,,your system isnt up to snuff.
flywheel off? check it isnt a reverse thread.
Screw the flywheel nut on almost all the way and give it a rap with the hammer,,the flywheel will come loose
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Old 07-02-2014, 07:57:37 AM
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Default Re: Barn fresh model y

You can substitute a WMB gas tank if your not worried about it not being all original or find another Y tank just like the tank that is on it now. Try ebay for starters. And yes the brass piece is a pickup tube with a check ball on the gotten of it that will probably need soaked in solvent like acetone to loosen it up.

Take the flywheel off and clean the points and try for spark like you have been told and then the condenser change after that as mentioned before.

I have a bunch of extra parts for Y's and will look for a tank next time I am at the shop.
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Old 07-02-2014, 01:46:22 PM
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Default Re: Barn fresh model Y

Thanks. Ya that's the next step. Points. And then condenser.

I got real confused with the flywheel. I saw the clutch bolted through the whole shaft and I thought it was all one piece. I've never seen anything like that. But I realized it wasn't.
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Old 07-02-2014, 01:52:12 PM
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Default Re: Barn fresh model Y

I do not know where you got that flywheel removal info but the Model Y was not like most all your other Briggs Models as to the way the flywheel is retained. The Y flywheel is retained by a bolt and nut through a drilled hole in the crankshaft. Get the bolt out then hold the crank from turning and rotate the flywheel back in forth until it is loose so you can remove it.

You can download a Y parts list on the ASECC site. The retainer bolt is part number 91370.


Gary
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Old 07-02-2014, 03:06:17 PM
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Default Re: Barn fresh model y

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 ----------

Thanks GaryH. It confused me when I saw the bolt through the shaft. It looked like it was one piece. I have an owners manual from briggs that says knock it with a hammer and wood.

Mine is pretty snug on there. I figured out how it comes off. I have never seen a hole through a crank shaft like that. It looked like it was one piece.

I gotta mark Which way it came off right? If not spark could be 180 degrees off.

---------- Post added at 02:45 PM ---------- Previous post was at 02:01 PM ----------

That governor is the craziest most primitive thing I've ever seen. That's real cool.

---------- Post added at 03:06 PM ---------- Previous post was at 02:45 PM ----------

New update.



Gap is .022 to .023.

It shocks me when I hold the plug wire. I can rock it back and forth and shocks each time.

But. It's not really jumping to the motor when I hold it 1/8" away. Or with the plug hooked up.

Might just be the head is so dirty it's not a good enough ground?

I might need help with testing using the multimeter
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Old 07-02-2014, 05:55:57 PM
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Default Re: Barn fresh model Y

Yes, it could very well be the head is too dirty to be giving you a ground to show a spark in the plug. Happens all the time. But if your holding the wire in your hand you'll still need to clean the points to make it stronger, Or do the conversion deal.
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Old 07-02-2014, 05:59:27 PM
vinceostapowich vinceostapowich is offline
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Default Re: Barn fresh model Y

It should really give you a poke,,not just a little joy buzzer sort of feel either.
You can ground it to the magneto mount plate if need be.
Im not sure what the secondary winding optimum resistance should be but my coils have seen between 4k and 5k ohms.
I test the system by hooking up a 6 volt battery positive lead to the condensor/primary wire/fixed points connection,then I hook up a spark tester to my secondary terminal out and to ground.
I gap the spark tester to about 30 thou.
Then i hook up a lead from the neg terminal of the battery and swipe it across the moveable side of the points.(the points need to have no way of touching ,so you insert a piece of thick paper between them)
This also confirms the movebale side of your points is going to ground,,but if you already know that then just swipe the neg lead from your battery across the magneto mount plate.
This should confirm your coil.
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Old 07-02-2014, 06:01:37 PM
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Default Re: Barn fresh model Y

do the condenser deal. dang spelling correctors
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Old 07-02-2014, 08:50:21 PM
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Default Re: Barn fresh model Y

I would not advise someone new to small engines to start hooking up a 6V battery to their coil. Pretty easy to fry one. If he is getting some shock just by rocking the flywheel back & forth, I would say the coil is probably OK. Clean the points thoroughly and maybe replace the condenser and it should fire.
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