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ssssskippy
Joined: 02 May 2010
Posts: 58
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 Posted: Sun Apr 17, 2011 9:38 am Post subject: Oil press indicator : unstable |
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Hi
I had a problem with my oil collector that was broken. So there was an air entry In the oil system that induced a very low oil pressure : 1 at low rpm 2 at 45%.
I changed the collector this week end and the air pénétration is fixed yet. Oil pressure= 5 at 45%
However I notice that the oil press indicator oscillating quickly: not stable
Is that normal? Is there some air In the oil circuit or Is that a reliability problem with the indicator?
Thanks
Olivier
Le 17 avr. 2011 à 11:46, "philg" <philgower(at)rappsystems.com.au> a écrit :
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KingCJ6(at)aol.com
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| Posted: Sun Apr 17, 2011 1:48 pm Post subject: Oil press indicator : unstable |
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If it is moving quickly, it may be a bad connection or sending unit. Check the cannon plugs and try to swap front-to-rear sending units to isolate.
Dave
In a message dated 4/17/2011 10:38:44 A.M. Pacific Daylight Time, ssssskippy(at)gmail.com writes:
| Quote: | --> Yak-List message posted by: ssssskippy <ssssskippy(at)gmail.com>
Hi
I had a problem with my oil collector that was broken. So there was an air entry In the oil system that induced a very low oil pressure : 1 at low rpm 2 at 45%.
I changed the collector this week end and the air pénétration is fixed yet. Oil pressure= 5 at 45%
However I notice that the oil press indicator oscillating quickly: not stable
Is that normal? Is there some air In the oil circuit or Is that a reliability problem with the indicator?
Thanks
Olivier
Le 17 avr. 2011 à 11:46, "philg" <philgower(at)rappsystems.com.au> a écrit :
| Quote: | --> Yak-List message posted by: "philg" <philgower(at)rappsystems.com.au>
Paul, I have been trialling a LED light and reflector obtained on ebay for the tail light, see attached pic. Contact me off list if you want more details on this project. Cheers, Phil Gower.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=337188#337188
Attachments:
http://forums.matronics.com//files/p1270024mod_151.jpg
========================e ties Day ================================================ - MATRONICS WEB FORUMS ================================================ - List Contribution Web Site sp; ===================================================
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[quote][b]
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ssssskippy
Joined: 02 May 2010
Posts: 58
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| Posted: Sun Apr 17, 2011 2:04 pm Post subject: Oil press indicator : unstable |
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Thanks for the answer.
You can see the shaky moove of the indicator at the beginning of this video:
http://www.youtube.com/watch?v=2f6TfU5T8dY&feature=youtube_gdata_player
Olivier
Le 17 avr. 2011 à 23:45, KingCJ6(at)aol.com (KingCJ6(at)aol.com) a écrit :
[quote]
If it is moving quickly, it may be a bad connection or sending unit. Check the cannon plugs and try to swap front-to-rear sending units to isolate.
Dave
In a message dated 4/17/2011 10:38:44 A.M. Pacific Daylight Time, ssssskippy(at)gmail.com (ssssskippy(at)gmail.com) writes:
| Quote: | --> Yak-List message posted by: ssssskippy <ssssskippy(at)gmail.com (ssssskippy(at)gmail.com)>
Hi
I had a problem with my oil collector that was broken. So there was an air entry In the oil system that induced a very low oil pressure : 1 at low rpm 2 at 45%.
I changed the collector this week end and the air pénétration is fixed yet. Oil pressure= 5 at 45%
However I notice that the oil press indicator oscillating quickly: not stable
Is that normal? Is there some air In the oil circuit or Is that a reliability problem with the indicator?
Thanks
Olivier
Le 17 avr. 2011 à 11:46, "philg" <philgower(at)rappsystems.com.au (philgower(at)rappsystems.com.au)> a écrit :
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[b]
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Cliff.Coy
Joined: 03 Mar 2007
Posts: 46
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| Posted: Mon Apr 18, 2011 7:25 am Post subject: Oil press indicator : unstable |
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It's appears you have an electrical issue with the aircraft as all of the powered gauges are oscillating at the same frequency.
Check your charging system first- bad diode in alternator, or current reversal in the generator.
Cheers,
Cliff
On Sun, Apr 17, 2011 at 18:01, ssssskippy <ssssskippy(at)gmail.com (ssssskippy(at)gmail.com)> wrote:
| Quote: | Thanks for the answer.
You can see the shaky moove of the indicator at the beginning of this video:
http://www.youtube.com/watch?v=2f6TfU5T8dY&feature=youtube_gdata_player
Olivier
Le 17 avr. 2011 à 23:45, KingCJ6(at)aol.com (KingCJ6(at)aol.com) a écrit :
| Quote: |
If it is moving quickly, it may be a bad connection or sending unit. Check the cannon plugs and try to swap front-to-rear sending units to isolate.
Dave
In a message dated 4/17/2011 10:38:44 A.M. Pacific Daylight Time, ssssskippy(at)gmail.com (ssssskippy(at)gmail.com) writes:
| Quote: | --> Yak-List message posted by: ssssskippy <ssssskippy(at)gmail.com (ssssskippy(at)gmail.com)>
Hi
I had a problem with my oil collector that was broken. So there was an air entry In the oil system that induced a very low oil pressure : 1 at low rpm 2 at 45%.
I changed the collector this week end and the air pénétration is fixed yet. Oil pressure= 5 at 45%
However I notice that the oil press indicator oscillating quickly: not stable
Is that normal? Is there some air In the oil circuit or Is that a reliability problem with the indicator?
Thanks
Olivier
Le 17 avr. 2011 à 11:46, "philg" <philgower(at)rappsystems.com.au (philgower(at)rappsystems.com.au)> a écrit :
| Quote: |
========================e ties Day ======================= - MATRONICS WEB FORUMS ======================= - List Contribution Web Site sp; =
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| Quote: |
et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
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--
Clifford Coy
Border Air Ltd.
629 Airport Rd.
Swanton, VT 05488
802-868-2822 TEL
802-868-4465 FAX
Skype: Cliff.Coy
[quote][b]
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ssssskippy
Joined: 02 May 2010
Posts: 58
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| Posted: Mon Apr 18, 2011 7:37 am Post subject: Oil press indicator : unstable |
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ok thanks!
2011/4/18 Cliff Coy <cliff.coy(at)gmail.com (cliff.coy(at)gmail.com)>
[quote] It's appears you have an electrical issue with the aircraft as all of the powered gauges are oscillating at the same frequency.
Check your charging system first- bad diode in alternator, or current reversal in the generator.
Cheers,
Cliff
On Sun, Apr 17, 2011 at 18:01, ssssskippy <ssssskippy(at)gmail.com (ssssskippy(at)gmail.com)> wrote:
| Quote: |
Thanks for the answer.
You can see the shaky moove of the indicator at the beginning of this video:
http://www.youtube.com/watch?v=2f6TfU5T8dY&feature=youtube_gdata_player
Olivier
Le 17 avr. 2011 à 23:45, KingCJ6(at)aol.com (KingCJ6(at)aol.com) a écrit :
| Quote: |
If it is moving quickly, it may be a bad connection or sending unit. Check the cannon plugs and try to swap front-to-rear sending units to isolate.
Dave
In a message dated 4/17/2011 10:38:44 A.M. Pacific Daylight Time, ssssskippy(at)gmail.com (ssssskippy(at)gmail.com) writes:
| Quote: | --> Yak-List message posted by: ssssskippy <ssssskippy(at)gmail.com (ssssskippy(at)gmail.com)>
Hi
I had a problem with my oil collector that was broken. So there was an air entry In the oil system that induced a very low oil pressure : 1 at low rpm 2 at 45%.
I changed the collector this week end and the air pénétration is fixed yet. Oil pressure= 5 at 45%
However I notice that the oil press indicator oscillating quickly: not stable
Is that normal? Is there some air In the oil circuit or Is that a reliability problem with the indicator?
Thanks
Olivier
Le 17 avr. 2011 à 11:46, "philg" <philgower(at)rappsystems.com.au (philgower(at)rappsystems.com.au)> a écrit :
| Quote: |
========================e ties Day ======================= - MATRONICS WEB FORUMS ======================= - List Contribution Web Site sp; =
|
|
|
|
--
Clifford Coy
Border Air Ltd.
629 Airport Rd.
Swanton, VT 05488
802-868-2822 TEL
802-868-4465 FAX
Skype: Cliff.Coy
| Quote: |
et="_blank">http://www.matronics.com/Navigator?Yak-List
tp://forums.matronics.com
_blank">http://www.matronics.com/contribution
|
[b]
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mark.bitterlich(at)navy.m
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| Posted: Mon Apr 18, 2011 7:54 am Post subject: Oil press indicator : unstable |
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A quick check to see if the charging system is at fault is to simply turn it off and run the aircraft on batteries alone and see what happens.
Mark
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