Quote:
Originally Posted by 911medic
Yeah, I'm sure there are more potent/effective dissolvers of the carbon deposits than Seafoam. I bet BG 44K is one of them. But I'd probably buy some fogging oil to use in the cylinders before startup after using them.
I was close to using the intake/carb cleaner that I bought. It says right on the can that it quickly dissolves carbon deposits. I chickened out for fear of cylinder wash, even though we only used higher quantities of cleaner in those cylinders we confirmed were closed. But we had to spray some in to check, and one of them looked closed but did not hold fluid until we turned the crank a bit. Which of course means the cleaner went right into the cylinder.
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Maybe you can test open/closed with Seafoam and once you know it's closed use something more heavy duty? Thanks for posting in my other thread, this has been very informative!