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jeromedelamare(at)free.fr Guest
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Posted: Tue Aug 21, 2007 11:39 pm Post subject: Deposits in Oil Filter |
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Jabachat of May 2007 advise to cut the filter and wash it in fuel in order to look for deposit:
http://www.jabiru.net.au/Jabachat/Jaba%20Chat%20May%20%202007.pdf
I did it after the first 25 hours. My friend Marc cut the filter carefully (no dust). After filtering the fuel:
· http://jeromedelamare.free.fr/deposit/DSCN3651.JPG
· Test with a magnet : no magnetic parts
· Visual inspection: very small orange metal dust (valve guide?)
Is it “normal” ?
I would like to send the oil for analysis but I have no reference to compare. What and in which quantity should I find in a “normal” analysis?
Jérôme
P.S.
Jabiru 2200 N°2092, hydraulic lifter, SB13 before first run, oil cooler, break in with Aeroshell 100, +0,3l of oil during 25 hours of break in, maximum temps never exceed)
[quote][b]
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Gilles.Thesee(at)ac-greno Guest
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Posted: Wed Aug 22, 2007 12:08 am Post subject: Deposits in Oil Filter |
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Jérôme Delamare a écrit :
Quote: | · http://jeromedelamare.free.fr/deposit/DSCN3651.JPG
· Test with a magnet : no magnetic parts
· Visual inspection: very small orange metal dust (valve guide?)
Is it “normal” ?
I would like to send the oil for analysis but I have no reference to
compare. What and in *which quantity* should I find in a “normal”
analysis?
Hi Jérôme,
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It is normal to find "some" metal particles in the oil filter at first
oil change. Of course the quantity and size must not be excessive.
Re the picture, bushing material comes to mind, camshaft bearings,
rockers, etc.
Re oil analysis, it is mainly a comparative method, though the
specialist can determine what looks normal and what doesn't.
Few people know that fixed base operators are offered free oil analyses
by oil distributors, so if you have a friend in the business you won't
have to pay
Best regards,
--
Gilles
http://contrails.free.fr
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Peter H
Joined: 20 Mar 2007 Posts: 197
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Posted: Wed Aug 22, 2007 2:02 pm Post subject: Deposits in Oil Filter |
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Jerome as I understand it there will normally be some magnetic particles due to the bedding in of the rings. I found a significant amount in mine at 15hrs. There should be no non magnetic bearing material which is normally white.
Peter H
From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of Jérôme Delamare
Sent: Wednesday, 22 August 2007 5:38 PM
To: jabiruengine-list(at)matronics.com; jabiruengines(at)yahoogroups.com
Subject: JabiruEngine-List: Deposits in Oil Filter
Jabachat of May 2007 advise to cut the filter and wash it in fuel in order to look for deposit:
http://www.jabiru.net.au/Jabachat/Jaba%20Chat%20May%20%202007.pdf
I did it after the first 25 hours. My friend Marc cut the filter carefully (no dust). After filtering the fuel:
· http://jeromedelamare.free.fr/deposit/DSCN3651.JPG
· Test with a magnet : no magnetic parts
· Visual inspection: very small orange metal dust (valve guide?)
Is it “normal” ?
I would like to send the oil for analysis but I have no reference to compare. What and in which quantity should I find in a “normal” analysis?
Jérôme
P.S.
Jabiru 2200 N°2092, hydraulic lifter, SB13 before first run, oil cooler, break in with Aeroshell 100, +0,3l of oil during 25 hours of break in, maximum temps never exceed)
Quote: | http://www.matronics.com/Navigator?JabiruEngine-List | 01234
[quote][b]
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andy(at)suncoastjabiru.co Guest
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Posted: Thu Aug 23, 2007 3:46 am Post subject: Deposits in Oil Filter |
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Jerome,
It’s normal to find very small amounts of both ferrous (magnetic) and non-ferrous material during the break-in phase. The crankshaft and rod-end bearings are probably contributing to the orange dust, as they bed-in. Any ferrous dust is coming from cylinder bores and / or piston rings as the honed surfaces are bedded-in. It’s good that you have taken the time to check at this stage, but more important to check later in the engine’s life (say at 300 – 400 hours). Bearing material being deposited in the filter at that stage indicates wider problems.
Andy
Suncoast Sportplanes, Inc.
39248 South Ave, Zephyrhills, FL 33542
Tel: (813) 779 2324 Fax: (813) 779 2246
www.suncoastjabiru.com
--
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Peter H
Joined: 20 Mar 2007 Posts: 197
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Posted: Thu Aug 23, 2007 2:28 pm Post subject: Deposits in Oil Filter |
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Jerome,
The picture looks like white particles on an orange thumb !
I did not find orange coloured particles. If this is the first filter scan there may be traces of sealant or something else. It would be best to ask the dealer who would have wider experience. Are you sure it is not rust?
Peter H
From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of Jérôme Delamare
Sent: Thursday, 23 August 2007 9:11 PM
To: jabiruengine-list(at)matronics.com
Subject: RE : JabiruEngine-List: Deposits in Oil Filter
Peter you’re right!
This morning, I tested again with a magnet the deposits obtained after filtering. Nothing!
But… When I tested the fuel used to wash the oil filter with the same magnet, I found magnetic particles! (sorry, I didn’t had my camera this morning)
The particles are so small that they pass thru the paper during filtering!
Of course, it’s normal to find this magnetic dust. But is it normal to find those orange particles (size, quantity)?
http://jeromedelamare.free.fr/deposit/DSCN3651.JPG
Did you, or someone else, observed those orange particles too?
Is there a link with those particles and a lubrication problem as observed by Martin?
Jérôme
-----Message d'origine-----
De : owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] De la part de Peter Harris
Envoyé : jeudi 23 août 2007 00:02
À : jabiruengine-list(at)matronics.com
Objet : RE: Deposits in Oil Filter
Jerome as I understand it there will normally be some magnetic particles due to the bedding in of the rings. I found a significant amount in mine at 15hrs. There should be no non magnetic bearing material which is normally white.
Peter H
From: owner-jabiruengine-list-server(at)matronics.com [mailto:owner-jabiruengine-list-server(at)matronics.com] On Behalf Of Jérôme Delamare
Sent: Wednesday, 22 August 2007 5:38 PM
To: jabiruengine-list(at)matronics.com; jabiruengines(at)yahoogroups.com
Subject: JabiruEngine-List: Deposits in Oil Filter
Jabachat of May 2007 advise to cut the filter and wash it in fuel in order to look for deposit:
http://www.jabiru.net.au/Jabachat/Jaba%20Chat%20May%20%202007.pdf
I did it after the first 25 hours. My friend Marc cut the filter carefully (no dust). After filtering the fuel:
· http://jeromedelamare.free.fr/deposit/DSCN3651.JPG
· Test with a magnet : no magnetic parts
· Visual inspection: very small orange metal dust (valve guide?)
Is it “normal” ?
I would like to send the oil for analysis but I have no reference to compare. What and in which quantity should I find in a “normal” analysis?
Jérôme
P.S.
Jabiru 2200 N°2092, hydraulic lifter, SB13 before first run, oil cooler, break in with Aeroshell 100, +0,3l of oil during 25 hours of break in, maximum temps never exceed)
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