az_gila
Well Known Member
A question for the Lycoming experts.
How do you know when a new engins is broken in?
I have a newly built up narrow deck O-360-A1A that had 1.5 hrs on a test stand and was then installed on my RV-6A.The plane first flew in May, but I then spent 4 weeks in the UK and returned to the AZ June heatwave...
Living at 3000 MSL and with the lows in the 80s it's hard to get the high percent power all of the literature tells you to run at. CHTs are still running hot in climb and also when I try to lean at 2500 rpm (FP Sensenich). Oil consumption is pretty low, perhaps less than 1/4 in on the dipstick in 7 hours.
Is there any other way of checking for break-in completion? I'm going to do a first oil change soon, so if I remove the plugs could a borescope tell me anything?
Test flying progress -
IAS issues. Non-standard flush static ports have been modified but the now arrived monsoon season doesn't give still air for accurate testing even in the early morning.
The old, but sat quietly on the shelf, Facet 40108 fuel pump failed after 6 flights.
How do you know when a new engins is broken in?
I have a newly built up narrow deck O-360-A1A that had 1.5 hrs on a test stand and was then installed on my RV-6A.The plane first flew in May, but I then spent 4 weeks in the UK and returned to the AZ June heatwave...
Living at 3000 MSL and with the lows in the 80s it's hard to get the high percent power all of the literature tells you to run at. CHTs are still running hot in climb and also when I try to lean at 2500 rpm (FP Sensenich). Oil consumption is pretty low, perhaps less than 1/4 in on the dipstick in 7 hours.
Is there any other way of checking for break-in completion? I'm going to do a first oil change soon, so if I remove the plugs could a borescope tell me anything?
Test flying progress -
IAS issues. Non-standard flush static ports have been modified but the now arrived monsoon season doesn't give still air for accurate testing even in the early morning.
The old, but sat quietly on the shelf, Facet 40108 fuel pump failed after 6 flights.
Last edited: