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heaysr(at)telus.net
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 Posted: Tue Nov 18, 2014 8:10 pm Post subject: Oil on gills |
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If you have an M14P in there and you have been in unusual attitudes during flight and it is oil (not grease) then it could be the nosecase prop shaft seal.
The Russian seals do go and usually gradually. Clean the gills and try a few more flights. If it gets worse that could be it.
The fix is to remove the nose case and ship it to Jill and Carl at M14P. They have all the equipment to replace the seal for you.
I have been there done that with my Yak 55M. No such problem since replacing the that seal.
Regards
Royden
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of schwartzcompany(at)att.net
Sent: Tuesday, November 18, 2014 6:01 PM
To: yak-list(at)matronics.com
Subject:
My yak 52 has developed an oil leak in the area of the shutters. Could be the seal at the back of the tube going into hub rear or front case seal. I removed nose cover over hub and looked with flashlight
No real major visiable oil in there. Removing prop and shutters to reach front of case is not appealing. But even spraying leak check and running/ cleaning/running. No real answer
Any suggestions
Thanks
Bob
Sent from Yahoo Mail on Android01234567890123456789
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dsavarese0812(at)bellsout
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| Posted: Wed Nov 19, 2014 1:57 pm Post subject: Oil on gills |
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Assuming the aircraft has a Russian V530 prop, more frequently the two seals in the prop hub piston can wear and cause oil to leak out of the prop hub. If there is oil on the sides of the hub exiting from around the sleeve, most likely the inner seal on the prop hub piston is worn out and needs replacing. If the oil is coming out around the sides of the "skull cap" or dome, the outer seal in the prop hub piston is worn out and needs replacing.
Remove the prop hub piston and dome and look inside the hub. It should be dry with the exception of possibly some small amount of grease. If there is oil inside the hub, replace the prop hub piston seals. Also make certain the oil tube is tight because there is also a paper seal on the back end of the oil tube.
Dennis
From: Royden Heays <heaysr(at)telus.net>
To: yak-list(at)matronics.com
Sent: Tuesday, November 18, 2014 10:09 PM
Subject: RE: Oil on gills
If you have an M14P in there and you have been in unusual attitudes during flight and it is oil (not grease) then it could be the nosecase prop shaft seal.
The Russian seals do go and usually gradually. Clean the gills and try a few more flights. If it gets worse that could be it.
The fix is to remove the nose case and ship it to Jill and Carl at M14P. They have all the equipment to replace the seal for you.
I have been there done that with my Yak 55M. No such problem since replacing the that seal.
Regards
Royden
[url=] [/url]
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of schwartzcompany(at)att.net
Sent: Tuesday, November 18, 2014 6:01 PM
To: yak-list(at)matronics.com
Subject:
My yak 52 has developed an oil leak in the area of the shutters. Could be the seal at the back of the tube going into hub rear or front case seal. I removed nose cover over hub and looked with flashlight
No real major visiable oil in there. Removing prop and shutters to reach front of case is not appealing. But even spraying leak check and running/ cleaning/running. No real answer
Any suggestions
Thanks
Bob
Sent from Yahoo Mail on Android
01234567890123456789
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[quote][b]
| | - The Matronics Yak-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:
http://www.matronics.com/Navigator?Yak-List |
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