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Old 12-13-2007, 05:37 PM
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cleaning engine internally

I need to clean engine internally without taking heads off. Should I use concentrated carb/injector cleaner, anything else?

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Old 12-13-2007, 05:57 PM
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Sit down, take a deep breath and think happy thoughts. When the feeling goes away you'll be fine.
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Old 12-13-2007, 06:15 PM
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"Clean internally" as in the valves, combustion chambers and piston tops.................or the oily innards of the top of the heads and deep inside the engine?
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Old 12-13-2007, 06:18 PM
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as in the valves, combustion chambers and piston tops
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Old 12-13-2007, 06:27 PM
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Sea Foam. VERY SLOWLY pour it into your intake while the engine idles, the shut off. Wait a while then start up. you'll see a huge cloud of smoke and then you're clear- not as clear as actually taking the thing apart though.
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Old 12-13-2007, 06:29 PM
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I was talking bad about sea foam on another thread, but we talked about it at work today and I hear good things about it, I actually put some in a diesel generator today, half a pint in the fuel and the other half in the oil. I ran the motor for a couple of hours and I did notice a decrease in the puff of smoke that came out when you rev the motor. the stuff smells kind of like rubbing alcohol. time will tell if it helps though.
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Old 12-13-2007, 06:30 PM
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sea foam sounds good except I live in clean neighborhood and Im afraid my neighbors will not be happy about that.
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Old 12-13-2007, 06:38 PM
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What is sea foam and who makes it ? thanks
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Old 12-13-2007, 06:44 PM
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It is used for the purpose stated here. I don't know who makes it, but it is generally on a shelf (near the checkout) in the parts stores around here.

Link to website:

http://www.seafoamsales.com/

They make different products, but the one they are talking about here is the engine treatment.

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Old 12-13-2007, 06:47 PM
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are you supposed to change oil after you use it?
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Old 12-13-2007, 06:57 PM
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Quote:
Originally Posted by mitmaks
are you supposed to change oil after you use it?
Would be a good idea. I would change the spark plugs too.
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Old 12-13-2007, 07:16 PM
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an old timers trick called a "spring tune up", i used to use it in the 70s before doing a tune up on cars with pinging or run-on problems.

while running the engine at 2000-2500 RPMs take a 16-20 oz cup of water and SLOWLY dribble it into the carb while keeping the revs up. the water will go into the cylinders with the fuel/air and will turn to steam upon combustion and steam clean everything and blow it out the exhaust. IT WORKS!!! it's clean and if you have any doubts have a buddy put his hand a foot from the end of the exhaust pipe and and ask him how much carbon came out and hit his hand. when finished let the car idle for five minutes then change out the spark plugs.

edit--i spelled spart plugs.
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Old 12-13-2007, 07:31 PM
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A few guys on here recommended it often and I always thought it was a waste,,,,,,,until I tired it. Works great, just follow the directions and you'll be fine.
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Old 12-13-2007, 07:31 PM
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Quote:
Originally Posted by mitmaks
sea foam sounds good except I live in clean neighborhood and Im afraid my neighbors will not be happy about that.
when I said it smells like rubbing alcohol I ment in the can not the exhaust, I was told to just run it in your fuel and or oil, I'd run it in the oil for about a 1000 miles or so, run it in your fuel every time you fill up for about a 500 miles and then every now and then
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Old 12-13-2007, 07:56 PM
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I just add a quart of Dextron. When I was servicing repo'd cars for banks, we got a lot of cars in that were so grubby inside the lifters would clatter, It always worked. BTW, Mazdas from the 80s & 90s are very sensitive to that problem, (they will clatter if you look at them sideways) and they respond well too. Dextron is very high in detergent. Better change the oil in a few hundred though...
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