Peter-
Water injection is a very good remedy for "blasting" carbon build-up within
cylinders. That used to be a popular add on system to prevent pinging before
the advent of knock sensors and electronic ignition. I've heard a number of
people comment that when they removed a head for a broken head gasket that
the cylinder(s) that were adjacent to the break were very clean while the
other cylinders had the usual carbon build-up. I've also heard you can
dribble a garden hose into the carb. while the engine is idling and this will
have a similar effect. You shoud probably change the oil after this, however.
Greg Donati
|