914 issues between 3200-3600 rpm
in 912 / 914 Technical Questions
8 years ago
Good evening
Sunday evening problem after an afternoon where MCR4S 914 was taken in and out of the hangar between showers:
Between 3200 and 3600 rpm the engine shake a bit and when I put the power slowly the rpm are not increasing with linearity, it take 2-3 secondes for RPM to increase
Propeller variable pitch left normal (take off mode)
Symptoms when engine cold or hot whatever
Nothing abnormal between 1800-3200 and 3600-5800
Manifold pressure normally reach at 5800 rpm as 40
Test with TCU of the TURBO ON and OFF, same symptms
Synchronized Carbs (Carbmate) normal from 1800 to 5800, even in the 3200-3600rpm range
Waste gate oiled recently with WD40
Distended waste gate cable ?
Opening sensor of carburetor (for TCU) malfunction ?
Any ideas more than welcome
Thanks
Jerome
Sunday evening problem after an afternoon where MCR4S 914 was taken in and out of the hangar between showers:
Between 3200 and 3600 rpm the engine shake a bit and when I put the power slowly the rpm are not increasing with linearity, it take 2-3 secondes for RPM to increase
Propeller variable pitch left normal (take off mode)
Symptoms when engine cold or hot whatever
Nothing abnormal between 1800-3200 and 3600-5800
Manifold pressure normally reach at 5800 rpm as 40
Test with TCU of the TURBO ON and OFF, same symptms
Synchronized Carbs (Carbmate) normal from 1800 to 5800, even in the 3200-3600rpm range
Waste gate oiled recently with WD40
Distended waste gate cable ?
Opening sensor of carburetor (for TCU) malfunction ?
Any ideas more than welcome
Thanks
Jerome
