I heard after i get my car nice and warmed up if i put a little water done the carb... maybe like a half a cup it will clean out the carbon. Any truth to this? Any of you guys do this?

Im no expert. I would think it would F-up the engine. I have heard of people injesting water into there engine and it seized up so fast it snapped a rod. Now pouring water down there ummmm. I would not

This isn't a shit load of water... just a small amount a little at a time.

http://www.hotrodder.com/kwkride/tech.html

Here i found a link here... let me know if this sounds like a good idea?

I've done it before and lived to tell about it http://www.nastyz28.com/ubb/wink.gif Main thing: Use a SMALL shot of water!

[This message has been edited by 1978LT (edited January 30, 2005).]

I've heard that getting the engine warm, leaving it in low gear, winding it up to almost redline and letting off on the gas (do this several times) will accomplish the same thing. Just heard it works. Seen the water (sprayed with a spray bottle) in the carb trick, too. The idea with both is too cool the mixture down which is supposed to make the "hot" carbon particles flake off the piston top and head and blow out the exhaust.

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81Z4ME

It might help. The steam does have some cleaning effect, but it isn't even close to the best way to do it. GM makes a product specially designed to do exactly this and they approve it for their engines. It is sold at the GM parts counter, and is called GM Top Engine cleaner. Get a can of that stuff and follow the instructions. The engineers who designed these engines also came up with this stuff to clean them.

I have heard very good things about this stuff from people I respect...
http://www.rxp.com/master.htm

You can use water AND ATF.....I've done both....never noticed a big difference, but it helps a little.

NAPA sells some stuff called SEAFOAM....sorta like the GM stuff Gary talked about.

If you have carbon build up your not driving like a camaro is suposed to be driven and are hereby ordered to drive a 1985 ford escort for 10 yrs!!!

I don't think he's gonna get 10 years out of an Escort!!!

Good old MMO in the gas tank and in the oil will help clean combustion chamber deposits out as will water and Seafoam.

What happens is that the stuff turns to steam at high temp. while the motor is running which basically "steam-cleans" the combustion chamber.

This is why you always check the plugs to see if you have a cracked head/block or have blown a headgasket b/c the plugs will be real clean in the cylinders involved b/c the water steam cleans them clean!!!

pdq67

[This message has been edited by pdq67 (edited January 30, 2005).]

LOL......i remember when i was a young teenager i heard the same thing about tranny fluid and water about how to help clean the carbon and build up.......i had an old 2 door galaxie with a 400 in it......i poured a full quart of tranny fluid down the carb......what a smoke show that was ...lol i also got the water hose out with the spray head and reved the engine while shooting the water down the carb......lol

i didnt blow the car up......it sure didnt run any better.......of course it had something else wrong with it and that didnt do any good........with all the popping and back firing.....i just said heck with it and floored the gas peddle while in park.............lol .......it blew up and the engine locked up......but hey i got 20 bucks for the car at the junk yard.....then i bought a camaro........lol

[This message has been edited by ddeennis (edited January 30, 2005).]

<font face="Arial,Verdana" size="2">Originally posted by 81Z4ME:
I've heard that getting the engine warm, leaving it in low gear, winding it up to almost redline and letting off on the gas (do this several times) will accomplish the same thing. Just heard it works. </font>

It does work, I did it today because Ive been having to drive my camaro daily and the plugs where loading up. Just dont do it around any cops like I did, I had to kiss major a$$ to get out of that ticket today after work. For all you young guys (and a few older ones) admit your wrong, say your sorry and the cop might just ( he did for me anyways) let you go with a STERN warning. Exhibition of speed is not a nice ticket, it costs alot of mula.

The water down the carb trick does work, Ive done it many times, it takes a long time because the trick is to pour a very lite stream. Remember gasoline is a liquid and it doesnt hydralic engine in small quanities, the same is true for water. With the engine warm the water vaporizes very fast and that is what removes the carbon.

My service manager has an 82 'vette. his neighbor says to him once, I saw your wife doing 90 on the expressway this afternoon in your vette. Her explanation was, "I had to get the carbon out"

I've run a 20oz bottle of water through an engine a few times. The trick is to keep the RPM's up. If you do let it stall, you might have to tear it down to get the water out. When I was done, I left a rather large pile of goo out the tailpipe. http://www.nastyz28.com/ubb/redface.gif)

BG 44K that will clean the carbon out and clean your fuel system. Expensive, but the results are great you will actually feel the difference if your engine is carboned up bad.

Its been done for years. Do use a MIST BOTTLE, water does not compress, so using a mist bottle gets the right amount in there without the worry of a hydraulic lock which = bent con rods.

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70 Camaro Z/28 with 461cu.in. BBC & OD Auto, 3.31 12 bolt posi.

Keep the engine at high RPMs, poor the water slow, and don't use alot of water. Be careful. This does clean the carbon, but if you use to much water and not enough RPM you will blow the eng. Water does not compress.

I used to clean the plugs off in my old junk 301 after a week of the wife dogging it around town. I would take her out on the road and run her until she quit missing in low and then shift to second and repeat!! Then on to third!! Up about 7,000 she would start cleaning out!!

And once I baby-sitted my Bosses wife's old Rambler, (that she dogged around town), for about a month one winter while they were in Pheonix.

I took the old bugger out on the road AND very carefully wrapped her up in low and held her for about three miles!! You shoulda seen the cinders/carbon chunks and sparks come outta the old bugger!!!

They came back and my Boss jumped me about three days later AND asked me what I did to his wife's car AND I thought, WHAT did I do??

Anyway he went on AND said his wife said it hadn't ran as good as it had in years so I came clean and told him how I took it out AND blew the cob's out of it!! He said GREAT!!!

pdq67

I have done both water and what gm sells. Gm wants you to pour in 2/3s or so shut it off for 15 min or so and restart then pour in the last 1/3. Both work real good. One caution if it is really carboned up be carful. I did the gm stuff on a suzuki sidekick and the piece of carbon was so big it broke a piston. I know it was no big loss but it makes you think on something that is good. I usually do it on used cars I buy when I do the tune up. Sometimes it help sometimes no difference.