Printable Version of Topic

Click here to view this topic in its original format

914World.com _ 914World Garage _ Decoke an engine

Posted by: davep Feb 25 2004, 01:40 PM

Years ago when I worked in a dealership we used a fluid to burn the carbon from the combustion chambers. The mechanic would take the car out into the country, then hook up a line from the can to a vacuum port on the intake side, and go for a little run. The smoke would just billow out until the can ran dry. It apparently did a good job. Does anyone recall this product that I can use to burn some carbon out?

DaveP

Posted by: Mueller Feb 25 2004, 01:46 PM

water???

Posted by: d7n7master Feb 25 2004, 01:47 PM

I've seen it done with plain 'ol water poured out of a Coca-Cola Bottle into the carb while keeping the rev's up. (by a mechanic at a Arco station I worked at as a kid...)

Posted by: James Adams Feb 25 2004, 01:49 PM

GM Top Engine Cleaner - get it at your GM Dealer.

Posted by: Jake Raby Feb 25 2004, 01:49 PM

I have used coca cola to do it before....

I have even had some low power Turbine engines like a 2liter of coke ran through them..... The deposits just pour out of the exhaust flange.

Posted by: redtiny914 Feb 25 2004, 01:55 PM

He is right about the Coca Cola....I believe it works because of the acid in the coke.

I am a nurse and we use coke to clean out G tubes...same concept though...just using it on people instead of cars in my line of work.....

Posted by: Jake Raby Feb 25 2004, 02:16 PM

Using orange Kool-aid to clean the toilets onboard ship was the most amazing one I have seen! Cleaning a pisser that sees 1000 people a day is a true chalenge for anything... Kool aid is the best! Just ask any Squid and they'll say the same thing!

Posted by: lagunero Feb 25 2004, 03:02 PM

Swepco has a product and the instructions are very much the same as you describe. I think it's the Valve Cleaner additive.

Posted by: JmuRiz Feb 25 2004, 03:10 PM

So has anyone done this...or have they just heard of doing it (aside from Jake)? And does it really work? Might help a tired old car/bike work a little better. My bike had a ton of buildup in the header when I repainted it

Posted by: MattR Feb 25 2004, 05:04 PM

Coke should add an addendum to their label for instructions...

Posted by: airsix Feb 25 2004, 05:38 PM

Whatever wonder concoction you guys put down your intakes make sure it's in small enough quantity that you don't get a hydraulic lock and bust the motor. I'ts probably easier than it sounds (to lock & bust the motor). I would replace the word "pour" with "mist" in all of the above. I have seen a motor get hydraulic locked on a surprisingly small volume of fluid.

-Ben M.

Disclaimer - I don't have any experience doing this and am neither recommending nor discouraging against it.

Posted by: steve@ottosvenice.com Feb 25 2004, 06:32 PM

This is The Stuff to use. Steve\

http://www.dr-willardswater.com/

Posted by: need4speed Feb 25 2004, 07:13 PM

I think Coke would be a VERY bad idea.

Ever have some smartass dump sugar in your gas tank?

Know how much sugar there is in Coke?

Maybe diet coke. . .

Or better still, a fluid specifically made for the task.

Posted by: DuckRyder Feb 25 2004, 07:17 PM

Lubro Moly Ventil Sauber, GM Top engine clean, ATF all work.

As was stated, carefull how much or you can bend rods............