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MarkWDavis
Joined: 03 Jan 2007
Posts: 104
Location: Syracuse, KS
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 Posted: Wed Nov 14, 2007 7:37 am Post subject: Oil sample frequency |
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What's the recommended interval for pulling oil samples on an M-14P? My engine has 550 hours and I'm sending in my first sample to get a baseline started.
Thanks,
Mark Davis
N44YK
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rvfltd(at)televar.com
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| Posted: Wed Nov 14, 2007 11:53 am Post subject: Oil sample frequency |
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About, oil analysis:
Which outfit does the best job, do they have the info specifically about
the HS6A and the M14P, or are they just looking for "metal"? The shop
we used (years ago) for our 4 and 6 cly Lyc's had all the factory info
about the types of metal used in the engine so when a specific metal
type showed up the report would come back with a recommendation that
might say to look at the bearings in the mag drive in the accessory
section. Or it might say that the metal found was wrist pin cap
material. This is of much more help than "we found steel particles in
your oil". Can any one out there tell me which service is the best
for our engines? Who do you use?
Always Yakin,
Doug
MarkWDavis wrote:
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Bill Tally
Joined: 11 Jul 2007
Posts: 20
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| Posted: Wed Nov 14, 2007 12:25 pm Post subject: Re: Oil sample frequency |
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I send a sample after every oil change (25-hour intervals) to Blackstone Labs: http://www.blackstone-labs.com/aircraft.html
I'm pleased with their reports, which are detailed, personalized and helpful. They seemed to understand radial engines and were familiar with the M-14P. It costs $22.50, but the peace of mind is worth it to me. No, oil analysis is not a crystal ball and it's certainly not infallible, but it provides useful information, especially after a baseline is established.
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MarkWDavis
Joined: 03 Jan 2007
Posts: 104
Location: Syracuse, KS
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| Posted: Wed Nov 14, 2007 12:53 pm Post subject: Oil sample frequency |
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Doug,
I use the AOA (Aviation Oil Analysis) kits. No idea if they have any
specific knowledge of the M-14P though. My plan is to do one every 100
hours and watch for changes.
Thanks,
Mark Davis
N44YK
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cpayne(at)joimail.com
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| Posted: Wed Nov 14, 2007 2:54 pm Post subject: Oil sample frequency |
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I sample with each oil change at 50 hour intervals, and change the oil filter also. I now have oil filter/mount "kits" available for CJ's and the Murphy Moose on my web site. I would like to see if there is any room on the Yak firewall for my Moose Kit. After seeing how an oil filter on "Pappy's" CJ saved his bacon some years back, I am a believer.
Craig Payne
cpayne(at)joimail.com (cpayne(at)joimail.com)
[quote][b]
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MarkWDavis
Joined: 03 Jan 2007
Posts: 104
Location: Syracuse, KS
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| Posted: Thu Nov 15, 2007 2:40 pm Post subject: Oil sample frequency |
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Doug,
I called the tech guy at Stavely Services for the AOA oil analysis kits
http://www.staveleyfa.com/public/FLlabaviation.asp and he said he's familiar
with the M-14P engines and has done analysis for them enough to have a
database. He recommends sampling every other oil change or around 75 hours.
Mark Davis
N44YK
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