C150 Rough running..Advice please!!
Join Date: Nov 2005
Location: Cumbernauld
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I was going to ask if you had leaned the mixture and then tried the carb heat was the RPM drop less if so it over rich! Due to to the warm air being less dense therefor changing the mixture to a rich one! Be careful if you get an over rich mixture with carb heat and then put on fuel pump on the approach you risk a rich cut which will be almost impossible to restart from, and fouled plugs are also a great risk too! I would suggest you get the engineers to look at the mixture sooner rather than later!!
Join Date: Nov 2007
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S205-18f
The chap flies a Cessna 150 - gravity fuel feed with no electric pump, so rich cut on approach with pump on is a non-starter!
As for suggestions of leaning before applying carb heat, certainly Lycoming suggest leaning only above 5000 feet - I would have thought something similar woukld be appropriate for a normally aspirated Continental.
As for suggestions of leaning before applying carb heat, certainly Lycoming suggest leaning only above 5000 feet - I would have thought something similar woukld be appropriate for a normally aspirated Continental.
