Brantel
Well Known Member
I posted this in my prop swap thread but wanted to put it here as well to get a more focused audience...
I checked my timing via the LED on the back, checked all the wires and plugs last night just to be sure I did not knock something loose with all of my work swapping props and adding a governor. Everything appeared fine.
One weird thing that has changed since switching props...
With the FP during mag checks, running on the Mag only would drop about ~50 rpm. Running on the P-Mag only ~10 rpm.
Now with the CS, running on the Mag only drops about ~60 rpm. The P-Mag only drops about ~50 rpm.
Nothing changed on the ignition, no ignition components were removed, no timing adjustments were made.
Why does the P-Mag now drop ~40 rpm more? I noticed that the higher the RPM during the Mag check, the less the P-Mag dropped.
I know there is more inertia involved now and less load on the engine at typical mag check RPM of 1700 RPM but would this make the difference?
I checked my timing via the LED on the back, checked all the wires and plugs last night just to be sure I did not knock something loose with all of my work swapping props and adding a governor. Everything appeared fine.