Before and after
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I'm guessing that the shiny pictures are the after cleaning all the carbon off the jug. I had a 65 VW that when driving along it would all of a sudden start missing for a bit and then take off again. I ended up selling the car as I was told that it needed a new engine by a VW dealer. Ends up the dealer that bought it from me as a trade in tore the engine apart and guess what they found. A piece of carbon had broken off from the piston and was floating around in the cylinder and when it got to the spark plug it would short it out.
Well there was a lot more carbon in there before I started. I did some unorthodox things with Seafoam.
Occasionally going up some long grades I would get a little bit of pinging.
A while back I did a compression test and I had around 150 on 4 cylinders but number four and number six has 160 and 179. I think you're looking at the 179.
It's closer to 160 now maybe a little less I haven't checked it since this last treatment.
I’m a firm believer in the powers of Seafoam. Every time I bought a used mower I would have to run a couple tanks with Seafoam through it to clean up a gummed up carburetor. Used it a few times in my van as well.
.......and yes, I need new valve seals. 
Did you ever glue a rubber tub e to a turkey baster and use it to squirt an ounce and a half of seafoam in each cylinder, then let it set overnight?
I didn't think so.
For some reason the right bank had more carbon than the left.
This is number three soaking.
Not bad for a 286,000 mi.
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I’ve never squirted it directly into the cylinders but I’ve heard of people doing that. For this van removing spark plugs falls under one of those things I’ll pay somebody to do. I do run super in my van. I believe that helps to makes a difference in how clean your internals are.
I’ve ran it through the gas tank here n there and I’ll put a half bottle in the crankcase a day before an oil change. Helps to break down any gummed up sludge so you can yeet it with the rest of the nasty oil the next day. It works.
I had a new intake manifold installed a few months ago and my mechanic commented on how clean it is inside my engine for the amount of miles it has on it. Seafoam and super for the win.
I’ve ran it through the gas tank here n there and I’ll put a half bottle in the crankcase a day before an oil change. Helps to break down any gummed up sludge so you can yeet it with the rest of the nasty oil the next day. It works.
I had a new intake manifold installed a few months ago and my mechanic commented on how clean it is inside my engine for the amount of miles it has on it. Seafoam and super for the win.
The other thing you do with it is pour it slowly into your intake manifold and keep the engine revved up just enough to keep it running. You end up pouring in the entire bottle and then you immediately shut the engine off and let it hot soak for 15 minutes to half hour.
When you restart the engine, your entire neighborhood will be in a thick fog and no one will be able to see anyone else.
........so they won't even know it was you.
When you restart the engine, your entire neighborhood will be in a thick fog and no one will be able to see anyone else.
........so they won't even know it was you.
One of the crazier things I’ve seen is my buddy pouring water into the carburetor. Don’t remember what year it was but it was a brown POS Nissan Sentra and it ran rough. You remember back when you could get a little foreign car for $500, well this car woulda been $250.
Anyway, my buddy pulled off the air filter and revved the car up real high then just started pouring water into the carb. Prolly at least a quart of water. He was pouring it out of a gallon jug. I thought for sure the car would lock up. Nope. Big ol poof of smoke and I’ll be damned if the car didn’t run significantly smoother after that.
Anyway, my buddy pulled off the air filter and revved the car up real high then just started pouring water into the carb. Prolly at least a quart of water. He was pouring it out of a gallon jug. I thought for sure the car would lock up. Nope. Big ol poof of smoke and I’ll be damned if the car didn’t run significantly smoother after that.
You want to pour in enough water but still keep it below the law of physics. The steam is supposed to remove the carbon. I remember doing that to my old 66 pickup but I was too scared to pour in too much water so I don't think I did much.
