Just recently, after 220 hours of operation, my Rotax 914 began "dieseling"
after
shut down. Never happened before, but now does it every time. I know that
dieseling is caused by a "hot spot" somewhere in the combustion chambers, but
where and why escapes me. I've pulled the spark plugs and aside from having
some gray lead deposits on them, they look fine. I plan to replace the plugs,
but doubt that they are the cause. Interestingly, the dieseling doesn't require
a really hot engine. A few days ago I started the engine and taxied 100 yards
to the fuel pumps. At shut down the engine dieseled.........and we know
the engine hadn't yet even warmed up. I've checked the mag grounding
connections,
and they work fine. It is definitely a dieseling condition. Anyone out
there experienced this and what conclusions did you reach?
Garry V. Stout
District Manager, AT&T Business Services
Phone: 813-878-3929 Fax 813-878-5651
*****Please note new e-mail address******
|