Subject: Re: Hi Compression?
Author: Alan Dunphy
Date: Jul 15, 2002, 6:50 PM
Post ID: 1710609730
Charlie,
I've done it on old 283 and 265 Chevy small blocks and it worked on
them, at least they ran better after the treatment. Just bring the engine up
to about 2K to 2500 RPM and siphon a small trickle of water down the carb,
keep an eye on the rpm as it will change when the water enters the engine.
Caution: to much water can cause a lot more problems. I learned that trick
in auto mechanics school back in the....... well, there were a lot of 283s
and 265s around. Basically, this is the same as the rapid acceleration and
deceleration only more severe, rapid temperature changes in the combustion
chamber tend to free up the carbon deposits. Since the water method can
dislodge large chunks of carbon rather quickly, I would avoid doing it to an
engine with air cooled or chrome lined cylinders. Also, Air cooled engines
do not take kindly to "shock cooling". I.E. cooling the internals faster
than the externals or vise versa. Learned that in Aircraft engine mechanics
school back when the big radials were the engine of choice. Another problem
would be getting equal amounts of water to each carb at the same time and I
would even more afraid to do one side at a time. If it's a serious carbon
problem on a Guzzi I would pull the heads and clean it that way, I think it
would be a lot safer. Plus, you can check the cylinders and valves while you
are in there.
Alan
'74 Eldorado LAPD Wixomized
MGNOC 4352
Alan R. Dunphy
adun-@midmaine.com
Pittsfield, ME 04967-1426
----- Original Message -----
From: "Charlie Mullendore" <Ambo-@netscape.net>
To: <Loopfram-@topica.com>
Sent: Monday, July 15, 2002 6:09 PM
Subject: Re: Hi Compression?
Hi Mike and all,
Seems I remember a few weeks ago Vince posted a message about having pinging
problems, this may be why.
Anyone ever tried the "steam cleaning" trick to remove carbon? Water vapor
is introduced through the carb. or other inlet opening while the engine is
running. The idea is, I guess, that the water vapor turns to steam in the
combustion chamber and removes the carbon. Never done it myself, but an
old-time shade-tree mechanic friend of my late Dad swore it worked. Cheers,
Charlie
EldoMike <msse-@classicguzzi.com> wrote:
| Agreed....pinging would also be a problem if it was too high...side to side is the most important. Mike www.classicguzzi.com ----- Original Message ----- From: "Jesse Open" <Beaver-@comcast.net> To: <Loopfram-@topica.com> Sent: Monday, July 15, 2002 11:06 AM Subject: RE: Hi Compression?
|
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