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SUBJECT: # 26004: How to use Seafoam?

Submitted by Claudio ( from TEXAS on 9/26/03 7:53:00 PM

Ok folks, drove around town till I found NAPA and got one bottle of the spray Deep Creep by SeaFoam, AND a bottle of the same thing but liquid. What a hell, took me so long to find it, I thought it'd be better to get them both.

Now, how exactly I use this product?
Pour the liquid into the carb? Spray it into the carb? How much? Let it soak for....minutes, then rev it up?

I don't like and don't trust directions from cans, and I would rather get instructions from you gys, the real experts. It's a Mercruiser 350 Magnum carburated with 230 hours, trouble free so far (other than water pump, and alternator).


  1. 9/26/03 10:12:00 PM Submitted by Sal ( from CALIFORNIA says For inboard carbed engines.
    Start the engine & let it idle till warm, pore the un/preasurized SeaFoam into all the barrels of the carb slowly until you get down to the last 1/8 of a can, then try & flood it out. Let it sit for 1/2 hour then start her up,.....warning,....your going to produce smoke like you can't imagine for about 20 minutes. Seriously, I wouldn't do it in a harbor because someone "WILL" call the fire dept for sure. When I say smoke, you are going to think you ruined the engine but it wont. After the smoke subsides, take her for a nive ride, no need to rev her up because all the crap will come out at idle or cruise speed. In most cases you "WILL" need to either change or clean & re/gap your plugs. Your engine should idle much, much better & you should notice how much quicker she gets to cruise. Sal

  2. 9/27/03 10:27:00 PM Submitted by Claudio ( from TEXAS says Will do it.
    Thanks Sal, will do it like you said.

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