Carbon removal?

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Mar 4, 2005 | 08:27 PM

#16

Madathlon

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Joined: Dec 2004

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From: Shasta Lake, Ca.

U know.. If U go to a good boat assy supplyer, They will have this spray stuff just for decarbin ur engine.. its even call decarb.. Merc Marine calls it Power tune.. Is much safer than pooring some stuff in there and possably have a hydro lock up on ur hands.. But I would say to do it outside no matter what.. And If U really want to pour water, ATF, or anything else in there, Go right ahead.. that how people like me make are money LOL..

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Mar 5, 2005 | 08:36 AM

#17

57_ford

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Joined: Feb 2002

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From: Maryland

I have herd of this and tryed this on a chevy 305 that wouldn't idle smooth enough to pass the smog test. It did work. It does make sense to me that it will warsh the oil off the cylinders. The modern car racers are installing water injection on their cars with turbo chargers to lower the cylinder temp to help stop spark knock so you can have more timming and boost pressure that makes more power. Some also mix it with alcohol. I have pull engines apart that have had leaking head gasket gaskets one cylinder is spotless clean ware water leaked into it. And the others were carboned up. I still wouldn't want to take a chance and distroy a good engine.

Mar 5, 2005 | 09:58 AM

#18

redlightning

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Joined: Jun 2004

Posts: 282

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From: Winchester

57,That is a good point.Your right the leaking cylinder is always clean.One thing I have not seen anyone mention is nitrous oxide.We need at least one person on here to say it removes carbon.Then there is the excuse to get nitrous oxide.Just tell the wife I am installing a carbon remover.

Mar 5, 2005 | 10:12 AM

#19

pfogle

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Joined: Feb 2003

Posts: 8,140

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From: Oak Harbor, OH

In small amounts water does absolutely no harm... It may wash the oil off the cylinder walls for a moment or two, until it gets splashed back up there.

Mar 5, 2005 | 10:50 AM

#20

Fomoko1

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Joined: Dec 2003

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From: Saskatoon, Saskatchewan

A small amount of diesel fuel in the gas tank was supposed to help in removing carbon. Tried afew times and didn`t really notice much difference. If I put too much in then it would smoke a grey colour which was kind of cool. Don`t want to over do the diesel in the gas tank because it may possibly run too hot, or have a hard time running at all.

Mar 5, 2005 | 05:52 PM

#21

fatfenders

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Joined: Feb 2001

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From: Iowa

"Coming from you Dewayne I should expect it. Next time you can get your nose in the clear take a wiff of the commercial cleaner. Sort of smells like ATF now dont it?? Read the ingredients."

No, actually it sort of smells like your sinus cavities just melted and ran down your throat. A couple drops left on a used piston, you can wipe it off to a new appearance after a few hours. I suspect you have never used GM XT-66 if you think it is in any way similar to ATF.

Mar 5, 2005 | 10:34 PM

#22

xfordman

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Joined: Sep 2004

Posts: 863

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From: Grain Valley Mo.

'fenders, I'm with ya on the Seafoam. My 390 (macho motor) was used for short trips and sat around alot, by the previous owner. (my good friend) During a regular tune up I found it to have about 135 psi compression,

even tho I know for a fact it had a rebuild. For our trip to Goodguys in Des Moines last year I added Seafoam, long story short, a recheck shows 175 in all cylinders.

I guess the rings were stuck (carbon).

Mar 6, 2005 | 06:47 AM

#23

fatfenders

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From: Iowa

Quote:

Originally Posted by xfordman

even tho I know for a fact it had a rebuild. For our trip to Goodguys in Des Moines last year I added Seafoam, long story short, a recheck shows 175 in all cylinders.

I guess the rings were stuck (carbon).

I know a lot of Pro marine mechanics that just rave about Sea Foam as the big boat engines power heads carbon up until they just about won't even run.

I think there are quite a few things that will work, but this cleaning is a chemical reaction is it not? Some time would likely be required. I'm not so certain the real cleaning occurs as the solvent is sailing through the engine at 100mph while you pour it down the carb. I like to flood out the engine with whatever I am using to clean, then let it set. And water would provide no benefit during the soak period.

Off the subject a bit but for injected engines the cleaner really needs to go through the injectors of course. And the catalytic converter considered if you aren't talking about an Effie. I'd be careful what I ran through a cat converter. I use a tool where the fuel pump is bypassed and replaced with a small air pressurized tank full of cleaning solvent (XT66-gasoline mix) (similar to an expensive cleaning system I don't have access to anymore)