| | Old 11HP Briggs rebuild | |
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+2CraftsmanQuad19 Junkyard Cowboy 6 posters | Author | Message |
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Junkyard Cowboy New Member
Join date : 2016-10-16 Points : 2919 Posts : 2
| Subject: Old 11HP Briggs rebuild October 17th 2016, 12:07 am | |
| Forum newb. I found an old 400cc , 11hp Briggs bottom shaft engine in a junk yard. Fairly complete , missing air cleaner assembly and starter. It does turn over , but when tipped on its side , a lot of water came out of the carburetor.
Im sure i could just clean out the carburetor, change the oil and go .. but i dont know this engine, could burn oil or knock. I picked it up because i wanted a winter project. So im planning a complete tear down , inspection and rebuild. I went to the local outdoor center , in search of a gasket / seal set , and rings, spark plug , carb kit ect.. counter drone looked at me like i was stupid , for messing with that old of a motor. Tried to sell me a used $300 motor. I literally got no service , i ended up walking out. Figured I'd buy online.
Where is everyone buying rebuild kits for these old motors? I search the model number and a lot of interchangeable crap like spark plugs , fuel line and filters come up.
Its a 252707 model , 0645-01 type ,84100511 code .
I assume its a 1984 ?
Any help would be appreciated! Ill post pictures of the engine when ever i figure it out. Thanks ! | |
| | | CraftsmanQuad19 Veteran Member
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Age : 24 Join date : 2016-04-12 Points : 5924 Posts : 2632 Location : Indiana
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 8:04 am | |
| Yes it is a 1984 25 cubic inch. I run the same engine on my mower. I would think eBay is your best shot. | |
| | | prancstaman Veteran Member
Join date : 2015-02-02 Points : 5052 Posts : 1412 Location : Cleveland,Ohio
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 12:00 pm | |
| I rebuild a lot of small engines and I usually don't have to buy any gasket kits. If I do buy something it usually is the rubber seals to seal the crankshaft or head gaskets only. All other gaskets can be made using a cereal box type cardboard. As for rings, as long as there is tension on them when placed in the bore they will seal the piston, just clean them with a file or sandpaper to remove sharp edges. Anything else wouldn't be worth buying new because the individual part will cost more then the motor is worth like piston, rod, crank, and cam. This is where a parts motor comes in handy. | |
| | | CraftsmanQuad19 Veteran Member
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Age : 24 Join date : 2016-04-12 Points : 5924 Posts : 2632 Location : Indiana
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 12:13 pm | |
| If you wanted a little more performance, put a stock rod from a briggs OHV in it. more lift for more power. And if you really wanted power, port and remove the eyebrows. But thats later....... | |
| | | AllisKidD21 Moderator
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Age : 25 Join date : 2016-07-10 Points : 8543 Posts : 5190 Location : Ontario Canada
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 12:38 pm | |
| I also run an 11 horse flatty on my rat rod mower, probably the best running motor I own. Definitely a great little engine. "This'll either wake you up or put you to sleep forever!"- Red Green "Whatever you do you should do right, even if it's something wrong." - Hank Hill - MTD Off-Road Build - Ford LT 110 Off-Road Build - Craftsman GT 6000 Off-Road Build - Sears LT11 Rat Rod Build *2019 Build-Off Winner!* Garden Tractor Collection: Allis B-110 x2, 710, 716, & 410 - Wheel Horse 655, 953 & 500 Special - Case 444 - Bolens Versamatic, G10 & 1668 Diesel Swapped - Cub 106, 124 & 1000/149 Frankentractor - Ford 120, LGT 125 & 145 - White 1650 Yard Boss - Moto Mower 710-100 | |
| | | TheGreenHornet Member
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Age : 23 Join date : 2016-04-16 Points : 3375 Posts : 227 Location : Indiana
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 3:45 pm | |
| i too have a 1983 briggs 11hp, unfortunately it bit the dust. I think CraftsmanQuad19 started a build thread on it called the hh11 or something like that. it had over 30000 hours on it, so it was time for it to go. it earned its keep | |
| | | MatthewD Veteran Member
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Age : 23 Join date : 2014-11-16 Points : 5709 Posts : 1993 Location : Northern Ireland
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 4:18 pm | |
| My favourite is the non-syncro balanced 8-11hp Briggs. They're just so lovely to hear running. Any engine I mod/take apart I usually take the balancers out because they create a bit of drag and are liable to crack/break at high rpms. The only downside is the engine does not run as smooth but it isn't really noticeable. | |
| | | prancstaman Veteran Member
Join date : 2015-02-02 Points : 5052 Posts : 1412 Location : Cleveland,Ohio
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 5:15 pm | |
| Yah, those old 11hp engines are strong enough to move a tank, LOL, well a small one anyways. | |
| | | MatthewD Veteran Member
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Age : 23 Join date : 2014-11-16 Points : 5709 Posts : 1993 Location : Northern Ireland
| Subject: Re: Old 11HP Briggs rebuild October 17th 2016, 6:19 pm | |
| Yeah I think those older smaller engines are understated and underused in the offroad/mower modding community. | |
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