Hello,
Issue
RV10 with engine vibration
Background
I feel my 10 has an usual engine vibration that follows RPM in frequency.
I purchase a used mid time O-540A1D5 that at one time was overhauled to a A4B5 = the heaver 5 and 6 crankshaft counter weights.
From what I can find this mod supports the compact constant speed hub configuration.
?Can you help me confirm if this engine configuration A4B5 supports the blended Hartzell propeller that is available from Vans for the -10 aircraft?
(it was purchase new from Vans 2011).
The engine vibration is all the time, low RPMs and increases as the RPMs increase. Like a one per rev.
I had the prop engine current configuration balanced and the readings were very low = .07-.1 ips.
I would think that if there was an true vibration issue that the tester would have read larger values.
Yes I continue to question the tester readings and will try as second source.
The engine runs great, good even compressions and strong cylinder compressions pulling the prop through by hand.
It start perfect and shows no other sighs of mag timing concerns, both bendix at 25 deg BTDC, one impulse.
200 hours of operation in the -10 as of today and all oil filter inspections are perfect, no metal of any quantity.
Does this Lycoming just vibrate because how large it is, 540 CI? Like a power stroke vibration?
Any similar report from other RV10 owners or Vans RV 10?
Any ideas what to check?
Any help with understanding if this is a approve/usable engine ? propeller combination?
Thanks
Issue
RV10 with engine vibration
Background
I feel my 10 has an usual engine vibration that follows RPM in frequency.
I purchase a used mid time O-540A1D5 that at one time was overhauled to a A4B5 = the heaver 5 and 6 crankshaft counter weights.
From what I can find this mod supports the compact constant speed hub configuration.
?Can you help me confirm if this engine configuration A4B5 supports the blended Hartzell propeller that is available from Vans for the -10 aircraft?
(it was purchase new from Vans 2011).
The engine vibration is all the time, low RPMs and increases as the RPMs increase. Like a one per rev.
I had the prop engine current configuration balanced and the readings were very low = .07-.1 ips.
I would think that if there was an true vibration issue that the tester would have read larger values.
Yes I continue to question the tester readings and will try as second source.
The engine runs great, good even compressions and strong cylinder compressions pulling the prop through by hand.
It start perfect and shows no other sighs of mag timing concerns, both bendix at 25 deg BTDC, one impulse.
200 hours of operation in the -10 as of today and all oil filter inspections are perfect, no metal of any quantity.
Does this Lycoming just vibrate because how large it is, 540 CI? Like a power stroke vibration?
Any similar report from other RV10 owners or Vans RV 10?
Any ideas what to check?
Any help with understanding if this is a approve/usable engine ? propeller combination?
Thanks