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Guy Buchanan
Joined: 16 Jul 2006 Posts: 1204 Location: Ramona, CA
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Posted: Thu Jan 19, 2017 10:11 am Post subject: 912 oil system air leak? |
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Couldn't find an answer for this. I recently had my oil pressure peg in flight. My oil pressure sensor is VDO and remote driving a GRT 2000 EIS. I vaguely remembered that air in the line could cause this so I bled the sensor feed line and the pressure returned to normal. (It seemed like there was air in the line when I bled it.) Then it climbed again, but did not peg. I bled it again and it returned to normal. Questions: - Does this sound like normal behavior for the gauge? Would air in the line cause it to peg?
- I recently did an oil change so I'm hoping the air came from that. However, is it reasonable that I would be getting air some hours after the change, and not right after?
- My Kitfox has the oil cooler on the suction side of the oil system, between the tank and engine. Is it likely or possible I have a crack somewhere in that system that's drawing air? And if I did, would it be reasonable that said crack would never leak oil, since I have no visible oil leaks?
Thanks,
Guy Buchanan
Ramona, CA
Kitfox IV-1200 / 912-S / Warp 3cs / 800 hrs
Glider pilot, too
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_________________ Guy Buchanan
Deceased K-IV 1200
A glider pilot too. |
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Roger Lee
Joined: 10 Jan 2006 Posts: 1464 Location: Tucson, Az.
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Posted: Thu Jan 19, 2017 5:02 pm Post subject: Re: 912 oil system air leak? |
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Hi Guy,
This doesn't sound like air. it looks to be more sender caused. It could also be a bad ground not making good contact. These two items are the most common causes.
| - The Matronics RotaxEngines-List Email Forum - | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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_________________ Roger Lee
Tucson, Az.
Rotax Instructor & Rotax IRC
Light Sport Repairman
Home 520-574-1080 TRY HOME FIRST
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