From: David Cole (DavidCole@tk7.net)
Date: Tue May 04 2004 - 10:17:03 PDT
I've always used straight H2O. I first did this about '70 on my Dads ill
running 350 Chevy that was burning oil due to - you guessed it - worn valve
guides - the curse of the old 350 Chevy.
Just get a bunch of water and while the engine is running - "drizzle it" <<-
-- Technical term that I forgot about until just now - into the engine.
Have one hand on the throttle and the other holding the can, bottle,
whatever..
Just pour it in as much as possible while not stalling the engine. I have
run a couple of gallons through an engine in 20 minutes or so. It does
work. The water turns to steam in the cylinders and basically steam cleans
the inside of the combustion chambers. Stuff even flew out the exhaust
pipe of that old 350 Chevy it was so carboned up.
Any drinkable water will do. I was using west Detroit water at the time in
'70, so that might have been better than most. (;->)
I never did ATF, but I think it might be effective on crappy neighbors.
Dave
On Sun, 2 May 2004 13:54:39 -0400, The Elrod's <ElrodML@pghmail.com> wrote:
>
> Ok guys, here is the "old timers" decarbonizing.
>
> BUT, this is not for the manifold, only for the cylinder heads, usually
> used
> when a chunk of carbon has flaked or built up to the point that the
> engine
> has developed a solid knock.
>
> Mix roughly equal amounts of ATF with water, usually about 10 fluid
> ounces
> is sufficient. Have the engine fully warmed and running. Rev the engine
> to
> 2500 to 3000 rpm, do NOT over speed. Start adding the well shake mixture
> slowly till serious smoke is noted from exhaust. Add remainder rapidly
> (3
> to 5 seconds) but do not choke down. Immediately shut engine off and
> wait
> 15 minutes or so. Re-start and rev to 2500 or so, this will soften the
> carbon and allow it to be burned or blown out of the cylinders. Be sure
> your neighbors know what is happening there will be LOTS an LOTS of
> smoke,
> it may take several hours to finally stop smoking.
>
> Good luck.
>
> Mark
>
>
> -----Original Message-----
> From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
> Behalf
> Of Stephen L Dussetschleger
> Sent: 02 May, 2004 13:43
> To: Military Vehicles Mailing List
> Subject: [MV] De-carboning old timers trick
>
> caused by the internal passages in the intake manifold becoming
> completely carboned up and plugged. Either you will have to remove the
> manifold to "hog out" the carbon, or simply replace the manifold.
>
> ***** OK all you lod timers. Who was it that once mentioned a bizarre
> method of De-carboing valves or something by taking a running engine &
> pouring water (?) into the carb. Not enough to stallit, but enough to do
> this job. Or was it ATF ? I can't remember. Seememd wierd, but had
> people say they had seen it done.
> Steve
>
>
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-- Dave
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