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De-Carbonisation. Myth or Reality? 200

posted by  jbowser on  Thu May 22 04:33 CST 2003
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last visit: Fri Dec 24 08:36 CST 2010
[RELATED]

It does work to clean out deposits and stuff. Does it do any good? Who knows...

I suppose that if an engine has been running fat for a long time this might do some measurable good. I did this on an old Chevy 350 engine several years back and you wouldn't believe the black "goo" that spit out of the tailpipe ALL OVER THE DRIVEWAY!!! I would suggest pointing the tailpipe into the grass... ;-)

Another procedure that seems to knock loose a lot of crud is Berryman's B-12. I bump up to a good fast idle (2k rpm maybe?) and take a can (not the aerosol) and drizzle it down the carb/throttle body (kinda difficult on a turbo!) at a rate where it is almost stalling the engine. When I get down to about 1/3 of the can left I crank up the rpms a little higher and pour the rest in till it stalls. I then switch off the ignition and let things "soak" for a while. Next step is to crank the hell out of it till it starts and sometimes it's amazing how much crap will shoot out the exhaust after this exercise. Do be careful drizzling in the B-12 as it is highly flammable and if you have some ignition problems, and it backfires through the intake, make sure a hose is handy. BTDT!!

Justin B.
83 Turbo






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