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hgmckay
Joined: 23 May 2006
Posts: 397
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 Posted: Thu Dec 24, 2009 12:11 pm Post subject: Oil Analysis Report |
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I have a 912 UL engine which had 228 hours on it when the oil was first analyzed. I bought the engine new. It has been operating in my plane since June 2007. At 228 hours the oil had 53 hours when the first sample was taken. The report from the first analysis had no comment on the results because it was an initial test. The engine had 283 hours on it when the oil was changed, and a second oil sample was taken and analysed (i.e 55 hours on the oil). The second analysis and report showed an increase in Iron content from 20.4 ppm to 22.4 ppm (i.e an increase of 2.0 ppm). This item was flagged in the report as an "Early Warning". There were some other increases in ppm for copper (+1.5 ppm), and silver (+1.3 ppm), but no comment regarding those increases. I am going to call the lab and try to find out why they have flagged the Iron content as "Early Warning". Can anyone give me some guidance as to why they would have flagged this as "Early Warning"? Early warning of what?? What are the limits of iron in the engine oil in ppm for a Rotax 912 UL with only 283 operational hours? Can anyone help me with this?? Am I in trouble with my engine?
Hugh McKay
Rotax 912UL
Allegro 2000
N661WW
[quote][b]
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kenryan
Joined: 20 Oct 2009
Posts: 426
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| Posted: Thu Dec 24, 2009 12:42 pm Post subject: Oil Analysis Report |
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Here's a link to a short video on the topic of oil analysis:
http://link.brightcove.com/services/player/bcpid1184434145?bclid=1184431670&bctid=1672104239
On Thu, Dec 24, 2009 at 11:08 AM, Hugh MCKAY III <hgmckay(at)bellsouth.net (hgmckay(at)bellsouth.net)> wrote:
[quote] I have a 912 UL engine which had 228 hours on it when the oil was first analyzed. I bought the engine new. It has been operating in my plane since June 2007. At 228 hours the oil had 53 hours when the first sample was taken. The report from the first analysis had no comment on the results because it was an initial test. The engine had 283 hours on it when the oil was changed, and a second oil sample was taken and analysed (i.e 55 hours on the oil). The second analysis and report showed an increase in Iron content from 20.4 ppm to 22.4 ppm (i.e an increase of 2.0 ppm). This item was flagged in the report as an "Early Warning". There were some other increases in ppm for copper (+1.5 ppm), and silver (+1.3 ppm), but no comment regarding those increases. I am going to call the lab and try to find out why they have flagged the Iron content as "Early Warning". Can anyone give me some guidance as to why they would have flagged this as "Early Warning"? Early warning of what?? What are the limits of iron in the engine oil in ppm for a Rotax 912 UL with only 283 operational hours? Can anyone help me with this?? Am I in trouble with my engine?
Hugh McKay
Rotax 912UL
Allegro 2000
N661WW
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Roger Lee
Joined: 10 Jan 2006
Posts: 1464
Location: Tucson, Az.
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| Posted: Thu Dec 24, 2009 2:02 pm Post subject: Re: Oil Analysis Report |
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Hi Hugh,
Just watch the samples, they will fluctuate up and down. My sample was iron 24.1, copper 9.3 and silver .1. at 351 hrs
The 400 hr. sample was iron 20.7, copper 9.3 and silver less than .1
I'll let you know what my 500 hr. sample is in about 2-3 weeks when I get the results back.
Your oil analysis will fluctuate. Just look for continuing trends. With these readings both my reports stated they were normal. I have others at lower hour samples and they all fluctuate some. I would bet switching oils between analysis might change the results too.
I will also depend on who is doing your oil analysis. I have been using Aviation Laboratories that do a lot of Rotax engines.
I will say this, my best analysis and my cleanest mag plug checks are with AmsOil motorcycle oil. I use 20-50W in the warm months and 10-40W in the colder months. The mag plugs I see using Amsoil seem to be cleaner for my clients that use the Amsoil over other oils. My mag plug may have nothing at all on it and some of the other oils have mag plugs with fuzz on it. Just an observation from seeing 35 different oil mag plugs a year and at least 2 oil changes each. I use Amsoil in my Honda Goldwing 1800 too and it does make my shifting smoother and quieter. A little fuzz on the plug is normal, but clean seems to work for me, too.
| | - 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
Cell 520-349-7056 |
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hgmckay
Joined: 23 May 2006
Posts: 397
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| Posted: Thu Dec 24, 2009 5:12 pm Post subject: Oil Analysis Report |
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Roger:
Thank you for your reply. I am using Mobile 1 Racing 4T 10W40 Fully Synthetic and have been since the engine was new. At least I am not alarmed now having read your email. I will continue to watch the samples. I still do not know why the lab flagged the iron content, but I will ask them after Christmas. Let me know what your 500 hr sample results are. Thanks again, and Merry Christmas!
Hugh McKay
Allegro 2000
Rotax 912UL
N661WW
From: Roger Lee <ssadiver1(at)yahoo.com>
To: rotaxengines-list(at)matronics.com
Sent: Thu, December 24, 2009 5:02:26 PM
Subject: RotaxEngines-List: Re: Oil Analysis Report
--> RotaxEngines-List message posted by: "Roger Lee" <ssadiver1(at)yahoo.com (ssadiver1(at)yahoo.com)>
Hi Hugh,
Just watch the samples, they will fluctuate up and down. My sample was iron 24.1, copper 9.3 and silver .1. at 351 hrs
The 400 hr. sample was iron 20.7, copper 9.3 and silver less than .1
I'll let you know what my 500 hr. sample is in about 2-3 weeks when I get the results back.
Your oil analysis will fluctuate. Just look for continuing trends. With these readings both my reports stated they were normal. I have others at lower hour samples and they all fluctuate some. I would bet switching oils between analysis might change the results too.
I will also depend on who is doing your oil analysis. I have been using Aviation Laboratories that do a lot of Rotax engines.
I will say this, my best analysis and my cleanest mag plug checks are with AmsOil motorcycle oil. I use 20-50W in the warm months and 10-40W in the colder months. The mag plugs I see using Amsoil seem to be cleaner for my clients that use the Amsoil over other oils. My mag plug may have nothing at all on it and some of the other oils have mag plugs with fuzz on it. Just an observation from seeing 35 different oil mag plugs a year and at least 2 oil changes each. I use Amsoil in my Honda Goldwing 1800 too and it does make my shifting smoother and quieter. A little fuzz on the plug is normal, but clean seems to work for me, too.
--------
Roger Lee
Tucson, Az.
Light Sport Repairman - Maintenance Rated
Rotax Repair Center
520-574-1080
Read this topic online here:
http://forums.matronics.com/viewtopi"http://www.aeroelectric.com/" target=_blank>www.aeroelectric.com
* HomebuiltHELP
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