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Huskybill

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i restore equipment, like garden and cub size tractors. Since some of these have been sitting a longtime the piston rings and valves can get pretty dry. I add seafoam to the crankcase oil and gas tank. One time cutting two acres of grass when I’m done I notice the rpms pick up and she runs smoother. I was wondering if anyone has tried seafoam in a chainsaw with low compression to reseat the rings?

It’s not a rebuild in a can but it seems to work on the neglected tractors. Seafoam is a gas stabilizer, frees stuck rings, frees sticky valves, reseats rings too. I put it in every piece of equipment I have for it’s winter sleep.
 
I use sea foam as a cleaner and stabil 360 as a stabilizer


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I had problems with stabil in my motorcycle it gummed up my four carbs. Stabil didn’t change there product for ethanol quick enough. There old stabil didn’t work with ethanol. I used stabil for years. In the spring my equipment on seafoam starts and runs like the day I parked it.
 
Seafoam is designed to soften carbon, which is then burned off during combustion. That's why you look like a crop duster after you treat your car. If carbon buildup is your problem it will help. If it's worn rings or something else, it won't.
 
I notice it cuts down on blowby out of the breather when seafoam is used so it’s reseating the rings.
 
Seafoam is good stuff. I mix it at 1 ounce per gallon in all of my 2 stroke stuff. Also mix it in the gas tank of my boat. Direct Injected 2 cycle outboards have highly sensitive injectors and Seafoam helps keep them flowing properly. It also helps prevent carbon from causing "ring jacking" which can ruin a powerhead.
 
Oil, gas, and intake treatments on my ford ranger removed the eng shakes


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I notice it cuts down on blowby out of the breather when seafoam is used so it’s reseating the rings.
Did that particular motor sit for a long time before you tried it? I’ve never used sea foam, I’ve just read a lot on what it does and how.

I find it hard to believe that sea foam would increase compression/enhance ring seal on an otherwise healthy, fairly worn motor. If this were true to even the slightest degree, they’d certainly advertise it.

I do believe it would free a gummed-up ring that has been stuck in the piston groove from not being run in awhile. That I believe it would actually do a good job with. Hence, the reduction in blow-by
 
Being a amc/jeep mechanic at the dealer ships when I was 23yo (I’m 68yo) I’m very Leary that additives work at first without trying them myself. My two cub tractors were sitting for two years the owners passed away. Both were kind of sluggish in responding with the governors. I added seafoam in both tractors and what a difference, they smoothed right out, and the rpms picked up. I’m impressed with Seafoam.

Working at a Mobil gas station we would pour a can of Mobil upper lube in the carburetor. This would lube the same as seafoam. The improvement was there but not as noticeable as seafoam.
Rislone is another one, we poured it in while the engine was running and the rpms would pick up while you poured it in.

Now at the dealers if we had hydraulic lifters ticking in a used car to get the sludge out of them we used “CD-2” for hydraulic lifters. It would quiet them down so the car could be sold. The amc dealer had a spray foam we sprayed in the carb till the engine stalled or the can was empty then the engine sat for a while. It loosened up the carbon in the heads. We used it before a tune up.
 
Only time I used seafoam was in a old Ford escort. We were sitting at sonic with some friends on a Saturday night and a couple diesel trucks rolled through blowing smoke everywhere. So we went to autozone got some vacuum line and toff the main line from the intake and ran it through the fire wall to the passenger floor board. Grab a can of seafoam and head to walmart where the guys in the trucks would be. Started pouring seafoam in the line a bit before we got to them car put on quiet the smoke show and we returned the favor for there antics earlier in the night.
 
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