Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
(OP)
Hi All,
I am doing the RCA of Frequent Spark Failure for the subject gas engine. We are using Champion RHM77N Spark Plug, within course of 2-3 months frequent failure occured and it some cases we change the spark plug and after running the engine for one day explosion was also happened.
Appreciate your experience advise to look for the different element of "5 WHY".
Regards
SK
I am doing the RCA of Frequent Spark Failure for the subject gas engine. We are using Champion RHM77N Spark Plug, within course of 2-3 months frequent failure occured and it some cases we change the spark plug and after running the engine for one day explosion was also happened.
Appreciate your experience advise to look for the different element of "5 WHY".
Regards
SK





RE: Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
RE: Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
http://www.sparkplugs.co.uk/pages/database/plug-de...
RE: Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
In analyzing spark plugs failures and service life issues there are a lot of things to look at.
Some of the questions have already been asked above, some others include,
How often does it start and stop?
What is current run time on engine?
Is it operating as a rich burn, lean burn or a just run it and go? Air/fuel ratio has a pretty big impact on plug life.
Is the engine oil consumption normal?
What is condition of the rest of the ignition system? Transformers, extension leads, primary wiring and the ignition module or magneto?
Can you better describe "explosion"? Was it an exhaust backfire, or in the inlet?
Are the plugs being properly gapped and installed?
How are you determing a plug has failed? Lower than expected cylinder temps? Indication for ignition system (if it's electronic ignition)? Poor performance or inability to maintain emissions?
Are you required to maintain emissions compliance? Is any form of after treatment installed?
What does your engine dealer or service company say about the problems?
Mike L.
RE: Frequent Spark Plug Failure in Waukesh L5790 Gas Engine
"Schiefgehen will, was schiefgehen kann" - das Murphygesetz