11 HP BRIGGS ENGINE VALVE JOB (part 1)

My 32 year old Craftsman Lawn Tractor needed a Valve Job
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[@CarlMarx]

This world is a funny thing, I was looking for a cheap used lawnmower tractor for our summer house, and I found one of these that was custumized and used as a mini tractor and now I am here.

[@leemer1]

Mower got tired and said `nuff of dis.

[@805ROADKING]

Yeah Buddy!! ☺

[@cyprusgrump]

Great stuff! I've never (knowingly) owned a Briggs but after finding your channel and watching all the videos I reckon I could strip down and re-assemble one of the small ones blindfold! And now on to the 11hp!

[@805ROADKING]

Thanks Grump!!☺

[@rw3dog]

Those good old 11hp Briggs are nice motors. I have worked on a bunch of them back in the day.... They real take a beating and keep on running.... We had the same motor in a John Deere 111, and the Crapsman...... A buddy has a newer 14.5 Hp OHV Briggs which I swear is the same block etc just with OHV attached...

[@douro20]

Probably. One I know for sure was an OHV built on an L-head block was the old Tecumseh XL engine from the 1970s. Last time I saw one was on a Miller welder. It had a separate valve chest which sat on top of the head. It was actually one of Tecumseh's better engines.

[@rw3dog]

I had a 1980's Agway (MTD) with a 12hp Tecumseh CL OHV. It ran good if you could actually get it started lol.....

[@creamofcardstv]

I'm sure doctor Roadking will get to the bottom of the problem :)

[@805ROADKING]

Thanks Mate!! The patient has already been released!!☺

[@JTBear]

1:50 Thank you SO much for showing this simple step, I've picked up a very similar mower and couldn't figure out how to get the hood off! Feeling pretty silly now because it looks so simple ...

[@99carnot]

I hope you do the next update soon. I am really looking forward to seeing what those valves look like! Thanks!

[@GrandsonofKong]

I didn't hear one "Aye, Aye, Aye"..seems to me a busted mower needed at least one of those!Old/Low Oil levels and high temps can be a bad combo for an air cooled engine. Better call Mike!..oh you already did!Look forward to hearing it go again..give that baby some RoadKing love too and it will give you another 30 years!

[@805ROADKING]

I think I was too disgusted for an Aye yi yi!!☺

[@upsidedowndog1256]

Those were the best mowers Sears ever sold.

[@805ROADKING]

Yeah Buddy!! ☺

[@rogeroconnor5182]

the old cube craftsmans were tough,flat heads forever!!!! lol

[@keithlucas6260]

roger oconnor .......I have two of these same grey box style mowers. One is just a parts machine now, and the other just a running tractor with no deck. These were made by MTD and only had hood changes. Craftsman were grey then green, the others were red for other brands.

[@huck01955]

The old girl has done well for you 30 + years

[@jdjeep46]

I bought one of those new also. I just watched your 1945 Briggs series. Really good videos. Thanks

[@805ROADKING]

Thanks Tbone!! I would have taken better care of it if I knew it was gonna last so long!!☺

[@DonaldKing23]

Good troubleshooting there. Always enjoy Your videos Man.

[@805ROADKING]

Thanks alot Don!!☺

[@TheOpenAirGarage]

Grass is growing. Have to get it done quick!!!!

[@805ROADKING]

Yeah Buddy!! ☺

[@twocvbloke]

If the engine date code is saying 21st October 85, then I'm 2 months older than it is... :P

[@Eric-un5ov]

Great video

[@805ROADKING]

Thanks Bud!!☺

[@mjmcomputers]

Got a newer version of that tractor in the pasture. Been picking pieces off it here and there. If you were closer it has a good 13hp motor.

[@805ROADKING]

Thanks alot Bud!! Mine just needed a little TLC!!☺

[@joshuapearson2857]

I wanna give ya a big ol' thumbs up just for posting this one. That sounds like it's shot a valve seat to me. If you figure out which is hot and which is common on the starter, you can jump out the starter with a screwdriver to spin the engine over to check for a head leak. At any rate, I"m excited to see the next installment. Oh and uh... Give the poor thing some TLC eh? Lol. Nuff o'dis.

[@KowboyUSA]

Man, she's a classic.

[@805ROADKING]

Yeah Buddy!! ☺

[@RanalynnNaipo]

Just came by to give you a thumbs up 👍🏼.

[@805ROADKING]

Thanks for stopping by, we returned the favor!!☺

[@cletusspuckler2243]

I have the same engne mounted in my lawn tractor , it needs a new ignition coil ( ignition vanishes when the engine is hot ) , and a new belt for the mowing deck . I bought this tracor from a buddy for a small price.

[@suptjud]

I had a mower exactly like that one for twenty years. The exhaust valve seat came loose and I peened it and it ran for many years after that fix.The transmission destroyed itself so I sold it and bought a new Craftsman mower with a 46 inch cut. That one is 18 years old and still running strong with a valve adjustment the only thing done to the engine. Regular oil changes are essential for long life.

[@hellohun7331]

You can buy a new magneto for les than $20 on eBay. I just replaced one on a 30 yo Briggs 5 hp, and it made all the difference in the world. It starts and runs like new.

[@oscarzt1652]

1:12 our westwood T1600 failed to start like that because the ignition coil had delaminated so when it was hot the hysteresis losses meant it couldnt spark

[@jok3yjesu339]

I love the channel

[@805ROADKING]

Thanks Bud!!☺

[@jok3yjesu339]

Especially the water cooled briggs that is what brung me to your channel

[@thiggy1249]

I believe that the owner's instructions call for just dropping the dip stick in the tube without screwing it down. Otherwise, you get a reading which shows more oil than you actually have in the crankcase.

[@sirchomps]

Excellent video series! I was searching for trouble shooting videos for a Briggs 13hp flathead and your series came up in results. I've heard your channel mentioned by other "YTers"Wallysplace66" and "Mustie1",not sure why I never checked out your content before but now I'm subscribed! Keep the videos coming! Looking forward to watching other videos from your channel!

[@805ROADKING]

Thank you Sir!! We appreciate you watching and subscribing!!☺

[@grantw.whitwam9948]

That looks a lot like my Lawn General MTD 12.5/42in, 1993. I check oil every time I mow.

[@805ROADKING]

I'm sure that's what it is!! MTD makes all your Store Brands!!☺

[@locouk]

Put a Suzuki GS550 lump in it, mow the grass with a 4 cylinder growl in style. You know you want to.

[@shawnmrfixitlee6478]

Ah , They die when they feel like it man .. Need any part for that let me know . I HAVE A TON !! Thumbs up..

[@805ROADKING]

Thanks alot Bud!! I know you're always there if I need ya!!☺

[@mechanicalking]

check out "till the wheels fall off"

[@not2fast4u2c]

I'm sure you can fix a Briggs engine If the valves are bad and low on oil I would suggest an overhaul with some new rings ..Those old Briggs can out last the mower they are on

[@805ROADKING]

Surprisingly that bitch doesn't blow any smoke at all!!☺

[@waynecreech]

Some days I feel like I need a valve job hahaha

[@805ROADKING]

I hear ya Bud!!☺

[@ben-jd8kk]

Nice hair cut

[@805ROADKING]

Thanks Bud!! I cut it myself!!☺

[@MCEngineeringInc]

Interesting. Might have done a compression check?

[@deltafactory]

When you tried to start it in the beginning of the video, did it look like it spun too freely? I'm wondering if you could use that to diagnose low compression, confirming the valve theory. Also, is it worth using one of those compression testers that screw into the spark plug to get a before & after reading?

[@allenmckinney9533]

i was working on a B&S 190cc engine off a pressure washer that wouldn't fire off gas. the gas had a clean path through the carb but turned out there was a vacuum leak after the carb. once i sealed it up the engine fired right up.

[@oscarzt1652]

try changing the igniton coil and spark plug. If that dont work try changing the cutting belt or see if the blades are fouling underneath

[@RamblinAround]

Gotta expect to do a little work on them every 30 years or so :) I know you'll get it running like new again.

[@805ROADKING]

Yeah Buddy!! If I knew it was gonna last this long I would have taken better care of it!!☺

[@mikedoblo4782]

it looks like the same problem my dads having with his lawnmower, I checked the same things you did could not find a problem in the end I ran till it was hot a wouldn't start again put a light down the plug hole and could see the exhaust valve was stuck open.

[@jonathanw4942]

If you had watched the water cooled build video that you posted two days ago you would know it was the valves in the mower. Dagum Roadking don't you watch your own videos?

[@805ROADKING]

I don't watch my shit, it's too long!!☺

[@wildcoyote34]

that's a good old engine ,, it's a 252707 from the look of it , they were around a long time ,, 10-21-85 it's 32 years old I had this exact same mower when i first started mowing lawns with a rider as soon as i heard it cranking i knew you had a sticking valve or some carbon on it ,,I've lapped the valves on a lot of these over the years the 252xxx series was replaced by the 282xxx in the late 80s and early 90s ,they built the 2 series at the same time for several years ,and a lot of people mix the 2 up ,, the 282xxx is actually physically bigger than the 252xxx ,,,a good way to identify an older 282xxx is by looking at the rear of the block there is a bolt in the middle of it that the 252xxx doesn't have surprisingly some of the parts are the same like the starter ,, all of the single cylinder starters from the 7hp 170xxx engine to the bigger 282xxx and 31Bxxx OHV engines is the same , the ignition coil is also the same on all the single cylinder engines , just the length of the wire is different on a different note ,, you MUST screw the dipstick in fully for the oil reading to be correct a little bit of a cheat that i have learned over the years through careful measuring if you set the stick in there and pull it back out if the engine is full of oil it will be at the ADD mark or a tiny bit above and you mentioned a couple quarts ,, it holds 42 ounces to be exact

[@richdelgzz]

Any idea what the factory spark plug should be for the 252? mine reads 252707-145-01. The briggs website doesnt recognize that model number. May be too old.

[@ml2trick]

Nice Video. Buy yourself a remote starter switch. It was one of my first purchases off the Snap on Truck. 35 years ago at 18.

[@805ROADKING]

Thanks Bud!! We wouldn't use it enough to warrant buying one!!☺

[@redneckbryon]

I wonder if it broke something internal maybe with the camshaft?? It definitely sounds like it's trying to fire but not at the right time.

[@goriverman]

Take the selinoid apart clean the contacts and turn them .180. Poprivet it back together

[@MattsRageFitGarage]

Did this come on over time or just overnight? sounds like a burnt exhaust valve, sticking valve or released/loose valve seat by the symptoms.

[@MAD450r2]

check the blade safety

[@ron827]

Did you check for spark? Give it a squirt of fuel through the carb intake. I experienced a similar problem and it turned out to be a loose valve seat.

[@MattHooker]

one youtuber (forget which one) used a strategy of sprinkling talcum powder around the outside of the head gasket to check for leaks. a leak would cause a big cloud of powder. now if it was an OHV Briggs, then the real challenge would be to make the head gasket last long enough to need to do a valve adjustment first

[@JPanyon]

no compression,,, probable rocker arm trbl, or bad valve/seat. Have fun!

[@MoondyneJoe]

Wheres Mustie1 when you need him?

[@esqueue]

LOL!!!!

[@MoondyneJoe]

I'm sure in his stash of stuff he would have a fix!

[@watermanone7567]

Maybe valve adjustment or the valve seat may have come loose on the exhaust valve. Is that coil wire and coil o.k.? Thanks for the great video's.

[@805ROADKING]

Thanks Bud!! That coil is better than new!!☺

[@aleblanc3547]

Some of those craftsmen mowers were pretty good machines if you could keep the deck and spindles from going south. I was just saying on another channel we don't see much in the way of vertical shaft engine work, so I'm looking forward to this fix. Thanks, Roadking.

[@805ROADKING]

The spindles are holding up but the front of the deck has rotted out!!☺

[@GGXjimmy]

Could well be a valve seat or spring thats gone. But you said you had compression?! Check the solenoid relay first. it could be sticky. Good luck!

[@billyloveland567]

OH BOY BUDDY! when checking the oil go counter clock wise and the dipstick will fall down into a notch then you pull it out and read it! :) and check the connections on the solonoid! sometimes can get a little rust on them causing that clicking...if that dont work i got a craftsmen that looks just like that if you want it ;)

[@805ROADKING]

Thanks Bob!! Instead of telling me how to fix it, you should have been here doing it!! You gotta earn that inheritance!!☺

[@billyloveland567]

should've called me Bob! you got my number!!!

[@NorthShoreScout]

Hey! i had this happen to my 112 john deere. it ended up being a little piece of dirt in the carb! it let just enough fuel to idle but when you wanted to give it the beans. it would run out! so just clean the carb! aight buddy enough of this!

[@marshallman1au]

Would YOU let this man maintain your ride-on for you ? Thought not .... ROFL!!!!

[@805ROADKING]

You definitely don't want me maintaining your stuff!!☺

[@marshallman1au]

ROFL RK!!! :)

[@Jim-ie6uf]

Seems to me, one of valve seats came out. It will be trapped on the valve. It happened on my 13 yr old Briggs 13.5 last year on the intake.

[@rw3dog]

jim s oh yeah I had an old 12hp this happened too. I think they sell an oversized seat...

[@BlazerProject]

Change the oil every year and they last. I do it and mine last for a good long time.

[@notsofast5495]

What was the problem? Is there a Part 2 video?

[@CalvinsCorner72]

No it's a CRAPsman. Not a lawn tractor. My mailman said he sure could use a little mail mower to bring my mail. lol he says he doesn't want to wait for 900 episode to get it too!

[@805ROADKING]

You kill me my Chubby Lil' Friend!!☺

[@furyiiiplate]

"85, do the math" Wow, I was not told there would be Math.

[@smallenginedude71]

Im sure between you and mike, it will be running in no time

[@805ROADKING]

Yeah Buddy!! We'll figure it out!!☺

[@mikedavenport173]

a friend of mine was given two riding mowers when a neighbor moved. one needs carb work. it wants to run. it tries. the other I think the trans is locked up. stuck in hear and it won't roll a s can't budge the engine. the engine looks just like this one

[@LookAmongTheHeavens]

Might as well sand your grounds down , id say exhaust vale is stuck popping sound id say coming through the crab .Valve seat might just be gummed up can't wait to see. Don't hurt to run a bit of kerosene in oil for few mins be for change it out every once in blue moon

[@regsparkes6507]

Man, 32 years old, that engine/mower doesn't owe you much, does it ? It does deserve a valve job now , I'm thinking., While on the subject of thinking,...would you consider installing an in-line shut off valve for the fuel line, now while you're at the engine?

[@805ROADKING]

Yeah I'll have to check the inventory, I think I might have a shut off valve!!☺

[@Timrsnakess]

Ya ever gonna give it a nice wash after 30+ years of service?

[@805ROADKING]

Nah, all that gunk holds it together!!☺

[@ANDERSONEXPRESS7]

May i ask a question

[@TheMrShinagami]

Did I spy some rot on the mower deck? will you be patching it up Roadking or is this just an engine fix?

[@805ROADKING]

Yeah the deck is all rotted up front, we'll use it like that till it falls off!!☺

[@coolrides]

It would be nice if the engine would cooperate by just needing something simple! :D Jack

[@805ROADKING]

Seems like nothing is ever simple for me Jack!!☺

[@FireballXL55]

From spinning over it sounded as though it has little or no compression.

[@dicksargent3582]

You've got a burnt or leaky exhaust valve.

[@edjames4535]

your carb might be plugged up or bad fly wheel key

[@screamineagle88]

Take the old motor out and drop a 35HP engine in there. Cut you lawn in 10 seconds or less! :o)

[@ctrain226]

make sure it wasn't in reverse I did that once and it ended up like yours, use startung fluid

[@jbmbanter]

I know you will fix it but if it never runs again I'd say you got your moneys worth. :)

[@805ROADKING]

Yeah Buddy!! ☺

[@tiporari]

sounds like it has low compression

[@jpmechanics6122]

Just did a flywheel gear on mine its like a 94 i think

[@DriveShaftDrew]

you guys will figure it out fast I'm sure

[@805ROADKING]

Yeah Buddy!! ☺

[@TheShadeTreeFixitMan]

Not much compression in there from the sounds of it.

[@805ROADKING]

Nah, we got plenty now!!☺

[@cptyler150]

your valves went bad

[@cptyler150]

the valves and or the valves seat in the exhaust have gone bad

[@mckruger6698]

I still think it's no compretion

[@mckruger6698]

I think

[@MalcOfLincoln]

That's a valve job Mate....you can hear it when you spin it over. After 32 years needs a rest, just buy a new one....or let the grass grow lol.

[@805ROADKING]

Can't buy a new one, this one is too much like Family now!!☺

[@MalcOfLincoln]

Know what you mean :)

[@user-neo71665]

Spend 300+ hours building and fine detailing a custom show engine Never checks the oil in personal lawn mower. The shoe cobblers kids go barefooted, ha ha

[@805ROADKING]

We don't have any time to check no stinkin' oil!!☺

[@mckruger6698]

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