100$ Dation 16HP MTD 990 "Mud Train"

It's not valve related. When it was run low on oil for hours it probably wore the cylinder and it now has a little bit of piston slap, causing the knock. That's what the knock sounds like to me anyways.

This would also be why it's burning oil, because the cylinder is worn.

@SebastianAlbrecht wrote:

sending it means not to care about it & run it til death

check the valve guides fist, before buying new rings

it cant be valves, the knock happens every rotation.

also... how do i tune the main jet on a fully adjustable carb? is there better way then feeling for bog on just dumping the go lever/cluch all the way?

@RockeyDA Well it's needs to be tuned at full throttle. Problem is when the engine is under load the governor lets in more air which will lean it a tad. The best method I've found is to turn your carb to factory specs, tweak it by feel (I struggle with this), and then check your spark plug after a hard run to see if you're running rich or lean.

sounds to hard, dont even know how a spark plug will tell me, think ima rig somthg up so i can play with it while driving and do a mountan climb, i can send it full bore trying to get up mountnittany

Well if it's rich the plug will be wet and sooty. If it's lean the plug will be white and ashy looking. Ideal is somewhere in the middle lol.

Here's a link with a nice chart:
https://www.tuningmatters.com/how-tos/beginners-guides/check-spark-plug-correct-carburetor-setting/

I think a tan colour indicates a nice clean burn. Black is rich, clean lean.

well, if i go by color i need to take my fancy shmancy briggs 9$ spark plug out and put a normal one in.

got the blown up mud train on the trails agin, boi it needs some TLC. need rings and head gasket bad. any one got links?

As Always, I love your Vids & enjoy Watching them!

really wish i could find a set of rings and new headgasket for this motor.

@RockeyDA wrote:

really wish i could find a set of rings and new headgasket for this motor.

maybe some other rings off a newer briggs will fit, & 4 the headgasket just put RTV between head & Block that pushes Compression a tiny bit & will be sealing

NO i dont think therees any other biggs im going to find to take rings from, the cilinder is so big i can put my fist in it.

@RockeyDA wrote:

NO i dont think therees any other biggs im going to find to take rings from, the cilinder is so big i can put my fist in it.

WTFH!!
Welp then U can just send it LOL

@SebastianAlbrecht wrote:

@RockeyDA wrote:

NO i dont think therees any other biggs im going to find to take rings from, the cilinder is so big i can put my fist in it.

WTFH!!
Welp then U can just send it LOL

send it were? small eng shop?

@RockeyDA wrote:

@SebastianAlbrecht wrote:

@RockeyDA wrote:

NO i dont think therees any other biggs im going to find to take rings from, the cilinder is so big i can put my fist in it.

WTFH!!
Welp then U can just send it LOL

send it were? small eng shop?

Sending stuff means that U just run it til it blows up

@SebastianAlbrecht wrote:

@RockeyDA wrote:

@SebastianAlbrecht wrote:

WTFH!!
Welp then U can just send it LOL

send it were? small eng shop?

Sending stuff means that U just run it til it blows up

so what? are you telling me to not put oil in it and destroy a motor that should be a cheepely saved motor? i mean theres no rod play and the wall looks pretty good, and i was able to save headgasket. if i could just find a new set of rings i would basicly have a new motor.

@RockeyDA wrote:

@SebastianAlbrecht wrote:

@RockeyDA wrote:

send it were? small eng shop?

Sending stuff means that U just run it til it blows up

so what? are you telling me to not put oil in it and destroy a motor that should be a cheepely saved motor? i mean theres no rod play and the wall looks pretty good, and i was able to save headgasket. if i could just find a new set of rings i would basicly have a new motor.

I send stuff as well, but I add Oil to my Oil Burners as well, cuz even do the Fact I send it instead of rebuilding it I want that stuff to last as long as possible with low maintenance & topping off Oil or changing it is not much work

i dont think the 16hp briggs is going to have a big fail, i think its just going to keep loseing compression till its not derivable.

@RockeyDA wrote:

i dont think the 16hp briggs is going to have a big fail, i think its just going to keep loseing compression till its not derivable.

thats what I mean, just Run it til U cant use it anymore!

Yeah, but you can damage the cylinder walls beyond repair this way. I think that you might have piston slap, and the longer you run it like that, the worse it gets and it's very expensive to repair.

@Double W Cross Ranch wrote:

Yeah, but you can damage the cylinder walls beyond repair this way.  I think that you might have piston slap, and the longer you run it like that, the worse it gets and it's very expensive to repair.

is it worth it TJ??

That Engine worked hard since 70s & is on its time to go downhill. Same with my 93 Flathead.. no rod knock or anything, but a leaking crank seal & worn rings & no feeling to fix it even due the Face I have severar Rings lying around, just would need a new crank seal...

well no one has links for rigns, so might be SOL on ever fixing it.

Check out isavetractors.com, they have a $50 piston kit for the Briggs 320000 engines.

thats a bit more than im willing to pay for a few metal rings. i thoght new rings would be more like 15$