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05-02-2014, 04:23 PM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Attitude Indicator bad??
My AI rolled over, so I figured it was bad.
Luckily, I had a spare.
Installed it last night.
Today: the new one did too.
Could it be my vacuum pump instead, or perhaps simply a clogged in line filter?
Any thoughts would be appreciated.
Daddyman
Last edited by rv6rick : 05-02-2014 at 04:57 PM.
Reason: removed expetives
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05-02-2014, 04:39 PM
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Join Date: Jan 2007
Location: Stuart, FL /Hartford, CT/Virgin Gorda,BVI
Posts: 3,122
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hows the vac pressure? got any?
__________________
TURBO YES =VAF= Payed Jan2019
Ed D'Arcy
RV6-A 5,200+ hrs, R-44 1,600 hrs, Helicycle 320 hrs, gyro sold,35,000 miles flown in 2015 
Stuart, Fl / S WINDSOR,Ct / Virgin Gorda, BVI - under major repair from hurricane damage
VAF #840 EAA AOPA FAC FABA QB SPA
addicted pickle ball player
https://i.postimg.cc/tn3h4svg/IMG-3101.jpg
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05-02-2014, 04:46 PM
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Join Date: Mar 2009
Location: Rochester NY
Posts: 669
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Some questions to consider
How's the DG working?
Are you sure the spare is good (how long has it been just sitting around)?
What is the vacuum gauge showing?
Checked for cut(s) or leaks in the hoses?
Hours on the pump?
How long since filters changed?
Dan
__________________
RV7A (N7101) - Flying 10/2008
CFI- SE/ME/Inst
A&P
KC2ZEL
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05-03-2014, 04:50 AM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Checks to perform
Dan,
Thanks for your thoughts.
When I swapped the artificial horizon, I visually inspected the hoses. They looked good, however, with that said, a small slit is hard to see in a hose.
The AI was tagged 1992. Looks new, but not sure.
Since the N262 DF is new to me, as I read the aircraft log, it looks like the pump was changed 11/2006, approximately 65 hrs ago (tach time).
The engine was overhauled 8/2012 due to prop strike. (30 hrs on tach).
No mention of filter change.
Dave "Daddyman" Clinthorne
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05-04-2014, 05:53 PM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Suction readings
Quote:
Originally Posted by turbo
hows the vac pressure? got any?
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Suction steady 5, not a waver on the gauge. shows 4 at idle.
Thank that rules out the engine driven pump.
Daddyman |
05-04-2014, 05:55 PM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Quote:
Originally Posted by DanBaier
Some questions to consider
How's the DG working?
Are you sure the spare is good (how long has it been just sitting around)?
What is the vacuum gauge showing?
Checked for cut(s) or leaks in the hoses?
Hours on the pump?
How long since filters changed?
Dan
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Changed the inlet air filter, performed better, but still not useable. I order the gyro filter, and will install this week and see if that is the fix.
Thanks,
Daddyman |
05-12-2014, 07:15 PM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Rebuild now
Even after Gyro filter change, the AI would roll over after 10 min.
Sent it out for a rebuild.
I did not know that AI's do not store beyond 6 mths (generally), and the internal bearings are subject to fail with lack of use.
Daddyman
N262 DF-
newbie
KEZF
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05-13-2014, 07:58 AM
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Join Date: Jan 2005
Location: Round Rock, TX
Posts: 211
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AI
Yank out the Vacuum Pump, AI and DG, Take the money you would spend in AI rebuild and put it into an EFIS. I did years ago and never looked back.
__________________
Stu McCurdy (Falcon)
RV-8, 78TX, Flying
Formation Flying, Inc (FFI)
Falcon Flight
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05-13-2014, 06:47 PM
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Join Date: Jan 2014
Location: Fredericksburg, Virginia
Posts: 286
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Stu,
Thanks.
If this does not work. That is exactly my plan.
Daddyman
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