100$ Dation 16HP MTD 990 "Mud Train"

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

Like I said, it's a piston kit. It includes a new piston, wrist pin, all the piston rings, and the wrist pin retainer clips.

SebastianAlbrecht wrote:

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??

It's totally worth it! What if you were in the hospital and the doctor said "I'll have to do surgery" and your dad said, "Is it worth it?"

AllisKidD21 wrote:

Like I said, it's a piston kit. It includes a new piston, wrist pin, all the piston rings, and the wrist pin retainer clips.

but i dont need/want all that other stuff. my piston looks great.

https://www.amazon.com/Briggs-Stratton-493782-Standard-Piston/dp/B0038U3MH2/ref=asc_df_B0038U3MH2/?tag=hyprod-20&linkCode=df0&hvadid=167152075853&hvpos=1o1&hvnetw=g&hvrand=10576312181215560686&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9006503&hvtargid=pla-310679288294&psc=1

i need to figure out if this will wor, i like price

Okay.. those are for a 9 cubic inch engine.

AllisKidD21 wrote:

Okay.. those are for a 9 cubic inch engine.

huh, that was a high up, maby first result for "Briggs 531cc piston rings"

so i was talking to the guy at our local small eng repair shop, he said that in that eare briggs stamped the model right on the shroud without using the plate, and that if it were ever repainted it would be covered up. well by god he was right. no luck on my 12hp, but i got a model number off my 16
326131

so the mud trains peformance has been horrible, smokes like crazy, knocks real loud with no rod play. did a compression test... 105 PSI WHAT?!?!?!
i was expecting 15psi
i think this weekend im going to try and order new rings for it, if i cant find them online im going to my local small eng shop.

New piston rings are not gonna help bugger all if it's knocking.

Like I've said already, the bore is most likely worn out from lack of oil, and the cylinder will need to be taken at least 0.010" over with a new oversized piston and rings.

if i see any imperfections i can always get a fine sand paper.

It's nothing to do with little imperfections, the bore is actually out of round and no piston will fit tight into the cylinder until it is bored out to the next size.

well i dont know how i would do that so its probably getting skipped. rings are there to fill in the space.

Rings are round. They will fill up a round space, but not an oval.

Piston rings are most definitely not there to "fill up the space", and as TJ said they are not meant to go in an oval shaped hole.

The engine will need to be taken to a machine shop to be torn down, and inspected to see if it needs bored out. They will have tools to measure a cylinder which you do not. This also means the crankshaft needs to come out, which may be rather difficult at this point...

If the cylinder needs bored out, that is the only way to have it done. There no skipping that part, there's no cheap way to do it, there no half assing it to make it work, there's no doing it by hand, and there's no swapping parts from other engines. That is just the way it goes when it comes to something like this.

Of course if it only turns out to be an out of round or burned piston, you will just need a piston kit, and a good cylinder honing. But by the sounds of things, I wouldn't bet the farm on that.

Also try to remember when we give you advice in a situation such as this, we are trying to help you out so your engine can be fixed properly.

so what would it cost to get this thing bored out? i cant get the fly wheel off no problem. its only welded on the surface. if i dont like the price. i might just say screw it all, get rings for my 12hp and put my 12hp in there. will probboly save the motor for parts in case i find another 16hp in need of some if i get stopped by price.

Your 12 hp also has piston slap.

but my 12hp only knocks at low RPM. above 1500 it runs smooth as can be.

also cant say that 12 dont need rings, its rocking 25psi

RockeyDA wrote:

also cant say that 12 dont need rings, its rocking 25psi

/me puts head in hands.

it almost sounds like your against me even trying to fix these motors.

yeah screw it, even if it dont fix knock, if it fixes the oil burning and gives me back power thats enough for me. im going for rings

i miss the glowing red exuast from a motor with power.

i got my own test i shall peforme not this weekend but next. im going to pop the piston out the motor, if i can get the oil ring back in with no fancy tools, then im getting new rings. if not, then im wrong.

still gonna do the piston thing, my boss said i need to "re seat my vavles" witch is something i never heard of. he said my glowing exhaust and running out of oil would cause a problem like that and the smoking.

Not really, but he's talking about lapping the valves. It's a pretty simple process. You disconnect the valve spring from the bottom of the valve, pull the valve out, smear valve lapping compound on the rear of the valve and the valve seat, put the valve back in, and turn it back and forth (there are several ways of doing it). You can buy valve lapping compound at Autozone or somewhere like that, Tractor Supply might have it.

so 2 thins on this project,
1, been playing with what i got, and i think i found a use for a tire i cant sell for 25$, so i think i might get another one, 2 of these rims https://recstuff.com/trailer-tires-wheels/trailer-wheels/15-trailer-rims/15x5-5-lug-on-4-5-silver-mod-trailer-wheel/
with some trailer hubs to mach
extend the front axle out a bit, and make the hubs mount about 2" higher than they would normally.



thing 2, my boss has been the devil in my ear on this project and he has me convinced i should use credit to get a diesel for this thing. so if my 16hp goes in to retirement. im shooting for a 2-3 cylinder, then paying it off over 2 years.

it sounds to iresponceible to me to spend so much on anything, but my boss you could die to morrow so live it up while you can talk was pretty convincing.