1974 Briggs & Stratton 3HP Motor Restoration [Part 2 of 2]
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- Опубликовано: 6 сен 2024
- Ladies and Gentlemen this is part 2 of the white 1974 Briggs & Stratton engine. If you have not yet seen part 1, please follow the link • 1974 Briggs & Stratton...
A while ago I found two of these motors at my local recycling yard. I brought them home and thought they would make great restoration videos for you guys. This one I will keep its original white color, the other motor I will restore at a later time and it will be made black.
This motor was made in 1974 according to its serial number and has a 6 to 1 reduction gearbox. I suspect this was on a lawnmower or maybe some kind of equipment (duh)
I hope you enjoy the video.
If you have any suggestions for improvement, or compliments share them below!
Please leave a like if you did like the video, please subscribe and feel free to comment your thoughts and as always thank you for watching.
Link for becoming a channel member. (less than 2 dollars)
/ @ajrestoration
Some history on the Briggs & Stratton company.
Launched in 1908 in Milwaukee, Wisconsin, the company is based today in Wauwatosa, Wisconsin. Briggs & Stratton engines are commonly used on lawnmowers, as well as pressure washers, electrical generators, go-karts, and a wide variety of other applications. Their original cast-iron engines were known for their durability, but the company's success was established following the development of lightweight aluminum engines in 1953. The aluminum engine was the perfect solution for the recently invented rotary lawnmower due to its lighter weight and lower cost.
The company started in 1908 as an informal partnership between Stephen Foster Briggs and Harold M. Stratton. S.F. Briggs was born in Watertown, South Dakota, and graduated from South Dakota State College ((SDSC) now South Dakota State University) in Brookings in 1907. The idea for his first product came from an upper-level engineering class project at SDSC. This first product was a six-cylinder, two-cycle engine, which Stephen Foster Briggs developed during his engineering courses at South Dakota State. After his graduation, he was eager to produce his engine and enter the rapidly expanding automobile industry. Bill Juneau, a coach at South Dakota State, knew of Briggs' ambition and the entrepreneurial interests of Harold M. Stratton, a successful grain merchant who had a farm next to Juneau's farm, so he introduced the two. In 1922, their fledgling company set a record in the automotive industry, selling the Briggs & Stratton Flyer (the "Red Bug") at record low prices of US$125-$150.
Eventually, Briggs and Stratton settled on manufacturing automotive components and small gasoline engines. Briggs purchased an engine patent from A.O. Smith Company and began powering early washing machines and reel mowers as well as many other types of equipment. The company went public on the New York Stock Exchange in 1928.
During World War II, Briggs & Stratton produced generators for the war effort. Some pre-war engines were made with aluminum, which helped the company develop its expertise in using this material. This development, along with the post-war growth of 1950s suburbs (and lawns), helped secure Briggs & Stratton's successful growth throughout the 1950s and 1960s.
Stephen Briggs went on to purchase Evinrude and Johnson Outboards and start the Outboard Marine Corporation. Frederick P. Stratton Sr. (the son of Harold Stratton) served as Chairman of Briggs & Stratton until his death in 1962 (Harold also died that year). Frederick P. Stratton Jr. served as Chairman until his retirement in 2001.
In 1995, Briggs & Stratton sold the automotive component business. The resulting company is Strattec Security Corporation.
In 2000, the company acquired its consumer generator business from the Beacon Group and formed Briggs & Stratton Power Products. The Beacon Group had previously purchased the Consumer Products Division of Generac Corporation (now Generac Power Systems) in 1998. In 2005, the company added Simplicity Manufacturing Inc, and Snapper, Inc, to the Briggs & Stratton Power Products line. Murray, Inc, one of its largest customers, collapsed owing to the company's $40 million, and to minimize the loss Briggs & Stratton purchased the name, marketing rights, and product designs of that company. In 2008, Briggs & Stratton announced it would be acquiring the Victa Lawn Care business from GUD Holdings Limited Australia for A$23 million.
In 2019, Briggs & Stratton announced they would be closing their engine factory in Murray, Kentucky with production being moved to their Poplar Bluff, Missouri facility.
On July 20, 2020, Briggs & Stratton filed for Chapter 11 bankruptcy. KPS Capital Partners would purchase a majority of the company stake for $550 Million.
On September 22, 2020, KPS Capital Partners closed on the acquisition of Briggs and Stratton. This sale waives the $900 million that Briggs owed going into bankruptcy.
![1974 Briggs & Stratton 3HP Motor Restoration [Part 1 of 2]](http://i.ytimg.com/vi/L6L-XYpRmqM/mqdefault.jpg)
This was a cleaning of parts and reassembly . I didnt see a gasket used for the cover, or, new bearing's, piston and rings, new crank seals, a light honing of the cylinder for good seal of rings, not a lot of new parts, but, a major cosmetic restoration . Now, if you did other things such as installing new parts or you performed other procedures you didnt show in the video, I apologize in advance. 😊 Its the perfectionist in me. Great video !
Most of the procedures were done off screen purely for the reason that the video would be 4 hours long. Sometimes the engine rings are still good so I go by if its still good, I leave them be.
Looks great!! I like how you never showed the valve spring R&R oh and you forgot the choke knob linkage rod. Tip: put a bolt back in the thread boss on the starter when you take it off, saves on the eye, too bad one was broke. Looks awesome!!👍
Bought a go cart with this engine. This was a huge help
I recently picked up a 1971 Giant Vac leaf blower with the exact same 3HP engine…. This video has been extremely helpful!!!!!
I have a 1977 Sears mower with a Brigs & Stratton motor that I run on “Ozone Alert Days” it makes me feel like I am doing something for the planet !!
Haha that is awesome!
Those peels... You, Sir, are a gentleman and a scholar.
Simplesmente um espetáculo de restauração parabéns !
I remember this Engine as a kid my dad had this Engine on a few mowers he liked the Briggs and Stratton and Kohler Engines back in the 1960's and 70's
Kohler engines are my favourite!
@@AJRestoration I have a 22 horsepower 725cc V Twin Kohler Engine in my tractor
Wow perfect restoration
Torque specs be dammed!
Ugaduga specs haha
When it comes to adding oil buy a plastic measuring cup. Fill the cup with the required amount of oil needed. Tilt the engine backwards and add the oil. Wow no mess. Just a thought here.
pink spark plug.......never seen that color of a spark plug before interesting
Did you decide not to replace the rings (or did I miss that part), or what were your thoughts on that. Thanks
Work done here is absolutely flawless, finshed results says it all ,this guy knows his shit...
Awww. Wanted to see that thing purr
I wanted to hear this run. My Grandpa worked on these on a backyard bench. I used to watch and help out cleaning parts. They are a lot easier to work on now.
ครับทา่นเก่ามากครับท่าน สมัยผมเด็กอยู่ครับทา่น
good restore👌👌👌
Nice rebuild 👍 I was trying to see those lap marks on the valves after you had finished but couldn't make them out. Great job. Hope you get it running later.
Very nice
Maybe you should have done the electronic ignition conversion, kits readily available.
Good idea, but the points are still good with a strong spark.
Thank you great friend. did an excellent job. I left my like. And I already signed up.
Thank you very much, welcome to the family!
I saw 1 eye bolt missing on top. Why is that?
That white powder coat looks great. Nice job as usual.
Nice work . I did notice the pull start assembly one ball bearing was in the wrong spot....look at when you assemble it there is two in one slot...
Besides that awsome job.
maybe iu can push my riding mower to you, to take a look at it. i am so confused on hooking up the linkage!!
If you are local, send me an email!
Beautiful build, thanks for sharing!
Man those engines were rlly complex back in the day. Like the flywheel mechanism
Good morning from Southeast South Dakota
I put a round muffler on mine, so much B.S., (no pun intended) just to change a diaphram with those oval mufflers.
This was one tough motor! Ours ran for over 30years.
Very nice work! Question: the PTO end with the reduction gearbox looks different in the "after" shots. Did you replace it, or just orient it differently? Thanks!
As far as I know, its the same?
@@AJRestoration Hi and thanks for the response! I looked again; if you compare 28:57 to 29:15 I figured out what the difference is... it looks like the bell housing is rotated 90 degrees clockwise from the "before" to the "after." It seems as though it was designed so it would work either way so that the oil drain for the gearbox could be oriented left or right. Love this series and all your restorations!
I didn't know you could get stickers for those old engines like that. Wonder where?
Great rebuild I think your next rebuild should be modified small engine like this one you know make it bit more powerful bigger cylinder head
Cool idea!
I was recently given a lawn edger that uses an engine almost identical to this. The carb is different in that it does not have the diaphragm. Can you make a recommendation on where to find a service manual for these types of carbs? Thank you!
There are quite a few online.
@@AJRestoration Everything I find refers to the carb with the diaphragm and not the model without the diaphragm.
Awesome job my friend 😊
When you put the crankcase cover on, did you leave the gasket off? I did see you adjust the points and give it a spin test to see if it’s sparking? I didn’t see you put a gasket on the carb? You should of plugged the hole in the point cover. And siliconed the wire, to prevent moisture from getting in. Was this your first ever rebuild?
Thank you great friend. did an excellent job. I left my like. And I already signed up.
well done. :)
Very nice! Can't wait to see it run in the next video!
Well....at least it looks nice.....
Nice Video Love these Restorations 😁
Glad you like them!
Valeu AJ! Ficou muito bom, trabalho profissional mesmo. Seus vídeos são inspiradores!
Yes they are
Superb!
Amazing job, I enjoyed your great work, I wish you continued success
Комментарий в поддержку канала и ролика, а также труда мастера.
Hi great restoration , can I ask who and where did you get your new parts from
You did a great job 👌💯💪 Big Hug Bro...😀
Thank you so much brother!😀
Can you start it up?
I could not get it to run in time for the video deadline.
Where's the coil pack from?
Its the original.
Loved the video. Q ... where did you get the new decals from ... they look great.
What is the engine number for this 3hp Briggs and Stratton?
Not sure, ill have to check for you.
Great video, I like the restauration a lot
Great restoration. How did you do the label’s?
Good two videos!!! We will wait for the testing :p
Well thats a very nice rebuild, looks beautiful. Any planning to to use it for something?
Marvellous
Good Job. As all ways. Where did you do those stickers? That had me in a panic in the beninging.
I downloaded them, edited some of them and had a local contact make it for me.
Muy buena restauración 👋 saludos 🇨🇴👋👍
Wonderful! Where do you get those decals? Are they gel covered?
Correct.
What are these gloves known as, so that seller can understand it.
I just saw your video, you mentioned your had a diaphragm problem. What exactly did you correct.
what have you done to the wire to the carby & the rest of the carby fittings?
I did not attach them again since I wanted to use the choke and throttle manually.
Nicely done, thank you. I have one question about the valves. Why do you grease them up and then spin them in their posts ?
Its engine oil, its so the valves have good lubrication
The spinning with the compound is called lapping. The compound is gritty and help get any burrs off the valve and valve seat so they mate and seal when the valve is down.
@@jkurl15 thank you.
не увидел его в работе. покрасить это одно дело, а вот что бы работал должным образом, это другое.
I didn’t see the points being adjusted, perhaps that’s what preventing the starting
There is spark, the issue is the new diaphragm I got, It seems to be the wrong part. If I spray a little gas in the carb, it starts right up.
@@AJRestoration Good information! I love the work and its great to see these old machines coming back to life.
Don't mean to be a nitpicker but, one of those balls on the starter gear jumped slots and you doubled up balls in one slot, and I noticed you didn't put a tank - carb gasket in, and also an intake manifold gasket on. That's going to cause an air and fuel leak. That may be why it wouldn't start for you. Hope you got that straightened out.
Good eye, it turned out to be a faulty carb diaphragm.
Nice. Will you post a video of it running?
That's the plan!
А как работает почему не показали???
Porqué no lo puso a funcionar?😢
what is the stuff on the threads of the muffler ?
That is copper based anti seize paste.
,รุ้นนี้ใช้ดีครับท่าน สมัยกอ่นประเทศไทยมีขายครับทา่น
ไทยนําเข้าครับทา่น
New gloves I see you are going through a pair of those in no at all
👍
How much oil goes in these engines?
Until it is level with the fil hole.
Great video. Where do you get your spares and part numbers here in SA
Turfmaster in nigel has all the spares I need, if I can't find it there I'm screwed haha. You know what a headache it is to import.
@@AJRestorationThanks for the reply. You're lucky. Not so easy in East London where I'm at.. I've imported but without the part number I'm screwed.
Top akkurat
Where can you buy such stickers?
Cadê funcionando 🤷
B S
Restauração muito top👏🤝👏