ronschreck
Well Known Member
A friend of mine discovered some serious exhause valve damage to his O-360
and during the repair process he uncovered a Lycoming SB that addresses the issue of carbon buildup on exhause valve stems. I'm curious, how many have performed the inspection described by this SB? Also, what are the chances of having problems with carbon buildup when useing electronic ignition and running mogas? Comments welcome....
Here is the SB on the Lycoming valve guides: http://www.lycoming.com/support/publications/service-bulletins/pdfs/SB388C.pdf
And here is the Service Instruction # 1425 with reaming instructions: http://www.lycoming.com/support/publications/service-instructions/pdfs/SI1425a.pdf
and during the repair process he uncovered a Lycoming SB that addresses the issue of carbon buildup on exhause valve stems. I'm curious, how many have performed the inspection described by this SB? Also, what are the chances of having problems with carbon buildup when useing electronic ignition and running mogas? Comments welcome....
Here is the SB on the Lycoming valve guides: http://www.lycoming.com/support/publications/service-bulletins/pdfs/SB388C.pdf
And here is the Service Instruction # 1425 with reaming instructions: http://www.lycoming.com/support/publications/service-instructions/pdfs/SI1425a.pdf