Strange old technique.........
Thread Starter
Race Director
Joined: Mar 2009
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From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
Strange old technique.........
I've never, ever heard of this way to clean carbon out of a motor!
Race Director
Joined: Jun 2006
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From: Inverness FL
St. Jude Donor '07
i've heard of walnut shells through the carb with the engine running, but the favorite was water with a bit of soap for lubrication poured into the carb with the engine running at a couple of thousand rpms..
Bill
Bill
Thread Starter
Race Director
Joined: Mar 2009
Posts: 19,777
Likes: 4,592
From: Canada's capital
2020 Corvette of the Year Finalist (appearance mods)
C1 of Year Finalist (appearance mods) 2019
Steam cleaning from the inside.
Le Mans Master
Joined: Feb 2001
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From: The problem is all inside your head she said to me.
Melting Slicks
Joined: Apr 2008
Posts: 2,703
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From: Western Washington
They used to have a bolt on water injection kits you could buy. If I remember right it was to run more timing without detonation or for tow vehicles to help them run cooler and not detonate.
Last edited by narlee; Mar 19, 2012 at 12:19 PM.
Le Mans Master
Joined: Jun 2004
Posts: 9,016
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From: Southeast Missouri
GM put out a service bulletin/directive (whatever) back in the 50's I think for the dealers using water through the carburetor as an accepted method for cleaning the carbon deposits out of cylinders. I've seen copies of the old service bulletin using this procedure.
I've used Sea Foam in much the same way, it did a great job on my Cushman Scooters.
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Michael S. Palmer
Safety Car
Joined: Jul 2006
Posts: 4,606
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From: Nevada City Ca.
2015 C1 of Year
I've mentioned using water for over 50 years to guys to clean carbon off the top of the piston and valves , even cleans the spark plugs like new , but 99% of the people I tell are afraid to try it thinking I'm crazy .OH well! 
I do it once a year on my 55
I do it once a year on my 55
Team Owner
Joined: Oct 2004
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From: altered state
St. Jude Donor '05
id use a spray bottle with warm water. too easy to hydrolock a motor otherwise. It does work.
Id like to try popcorn kernels just to see what comes outta the pipe..
Anyone take dares?
Id like to try popcorn kernels just to see what comes outta the pipe..
Anyone take dares?
