Fearless Tower
Touchdown! Greaser!
Went up in my favorite twin (BE-76) yesterday since the left engine was torn down and prop replaced (some unknown individual took the airplane uncheduled, had a prop strike and then parked it without telling anyone). Repairs are now complete and it is back online. I've got about 100 hrs in this particular plane, but yesterday I was having one hell of a time syncing the props - constantly trying to adjust the props and never seeming to be real smooth (never had a problem before the engine was worked on).
A couple of interesting things to note:
-Before the prop strike, the right engine would typically want to redline RPM on the T/O roll. Yesterday, when applying full power I noticed that it was the LEFT engine that was indicating 100-200 over red line. I pulled the power back to keep it below 2800 and continued the takeoff. Once airborne I did what I normally do - pulled the props back to set climb power using the left as the master - ie set the left on 2600 and adjusted (or tried to adjust) the right to match...best I could do to get them to sound synced was to pull the right back to where it was showing 200 RPM below the left.
-Went up again this morning and tried using the right as the master and adjusting the left to match. MUCH smoother this time and the props synced up much better using the right as the master, but when doing this, the left indicates aboout 100-150 RPM higher than the right. So, if you set the right for 2500, the left when synced shows 2600-2650.
All work was done to the left, no changes to the right side during repairs.
The RPM gauge is a single, dual indicating guage (two needles on a single RPM indicator). I'm thinking that there is a problem with the left indication. Anyone experienced a similar issue? Is there a good way to narrow it down and rule out a governor problem?
A couple of interesting things to note:
-Before the prop strike, the right engine would typically want to redline RPM on the T/O roll. Yesterday, when applying full power I noticed that it was the LEFT engine that was indicating 100-200 over red line. I pulled the power back to keep it below 2800 and continued the takeoff. Once airborne I did what I normally do - pulled the props back to set climb power using the left as the master - ie set the left on 2600 and adjusted (or tried to adjust) the right to match...best I could do to get them to sound synced was to pull the right back to where it was showing 200 RPM below the left.
-Went up again this morning and tried using the right as the master and adjusting the left to match. MUCH smoother this time and the props synced up much better using the right as the master, but when doing this, the left indicates aboout 100-150 RPM higher than the right. So, if you set the right for 2500, the left when synced shows 2600-2650.
All work was done to the left, no changes to the right side during repairs.
The RPM gauge is a single, dual indicating guage (two needles on a single RPM indicator). I'm thinking that there is a problem with the left indication. Anyone experienced a similar issue? Is there a good way to narrow it down and rule out a governor problem?
