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scottmschmidt(at)yahoo.co
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 Posted: Mon Nov 01, 2010 2:06 pm Post subject: Oil Lines Worn |
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During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com
[quote][b]
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Tim Olson
Joined: 25 Jan 2007
Posts: 2872
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| Posted: Mon Nov 01, 2010 2:47 pm Post subject: Oil Lines Worn |
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You can minimize some of the problems on initial install by putting some good bends in the rods to get them to not want to rub much or at all. Then, also get some RTV next to and on those nylon bushings and rub areas to keep things where you want them. The rods are kind of a pain, but by a little pre-work you may be able to minimize issues in the future.
Anything that can rub anything else is a potential problem, so use RTV to hold things in place or prevent chafing. I've seen a spark plug wire rub most of the way through an AN oil fitting nut before (on another plane not one I owned), so even soft things can wear hard things.
Tim
On Nov 1, 2010, at 5:02 PM, Scott Schmidt <scottmschmidt(at)yahoo.com (scottmschmidt(at)yahoo.com)> wrote:
[quote]During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com (scottmschmidt(at)yahoo.com)
[b]
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gengrumpy(at)aol.com
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| Posted: Mon Nov 01, 2010 6:48 pm Post subject: Oil Lines Worn |
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Most enlightening.
I also found out something at the 160 hr point when I found oil inside of the cowling.
Seems that new engines are prone to slowly begin leaking from the oil pan gasket over time if not re-tightened frequently.
I had not re-tightened mine as they had torque putty on all of the bolts.
The bolts did not loosen, the gasket actually weakened a bit over time.
Moral of the story here......just like Scott, when the cowl is off, hand tighten each of these bolts (you can't get a torque wrench on them0.
grumpy
N184JM
On Nov 1, 2010, at 5:02 PM, Scott Schmidt wrote:
| Quote: | During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com (scottmschmidt(at)yahoo.com)
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href="http://www.aeroelectric.com">www.aeroelectric.com
href="http://www.buildersbooks.com">www.buildersbooks.com
href="http://www.homebuilthelp.com">www.homebuilthelp.com
href="http://www.matronics.com/contribution">http://www.matronics.com/contribution
href="http://www.matronics.com/Navigator?RV10-List">http://www.matronics.com/Navigator?RV10-List
href="http://forums.matronics.com">http://forums.matronics.com
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AV8ORJWC
Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"
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| Posted: Tue Nov 02, 2010 4:22 am Post subject: Oil Lines Worn |
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Three of the last five Lycomings that I have had access to (with the cowl off) have had damage. You pix was the worst. On a certificated engine the most damage "permitted" is 10% of the tubings wall thickness. You were about 5x that. Kudos to Sean.
Hyrocarbons in proximity of an exhaust system would make for a bad day.
John Cox
From: Scott Schmidt
Sent: Mon 11/1/2010 3:02 PM
To: RV-10 List
Subject: Oil Lines Worn
During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com
[quote]
_blank>http://www.aeroelectric.com/
/" target=_blank>http://www.buildersbooks.com/
=_blank>http://www.homebuilthelp.com/
blank>http://www.matronics.com/contribution
get=_blank>http://www.matronics.com/Navigator?RV10-List
p://forums.matronics.com/
[b]
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dlm46007(at)cox.net
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| Posted: Tue Nov 02, 2010 6:37 am Post subject: Oil Lines Worn |
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Two things can be done to separate the lines from the baffling retainer. remove and bend the lines and/or wrap the oil return lines with silicone tape. Also when grouping CHT, EGT, etc , use the silicone tape to separate them even if you tie wrap the lines. tie wraps should go outside of the tape wrap.
[quote] ---
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rv10builder(at)verizon.ne
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| Posted: Tue Nov 02, 2010 8:06 am Post subject: Oil Lines Worn |
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The next Sport Aviation has this method covered, be sure to review the article for pictures and commentary.
From: DLM (dlm46007(at)cox.net)
Sent: Tuesday, November 02, 2010 7:33 AM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Re: Oil Lines Worn
Two things can be done to separate the lines from the baffling retainer. remove and bend the lines and/or wrap the oil return lines with silicone tape. Also when grouping CHT, EGT, etc , use the silicone tape to separate them even if you tie wrap the lines. tie wraps should go outside of the tape wrap.
[quote] ---
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http://www.matronics.com/Navigator?RV10-List |
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scottmschmidt(at)yahoo.co
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| Posted: Tue Nov 02, 2010 12:50 pm Post subject: Oil Lines Worn |
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I always say if something is worth doing, it is worth doing right. Glad to know I am in the lead 
Sometimes it is embarrassing to air dirty laundry like this but hopefully we all become more aware.
Scott Schmidtscottmschmidt(at)yahoo.com
From: John Cox <johnwcox(at)pacificnw.com>
To: rv10-list(at)matronics.com
Sent: Tue, November 2, 2010 6:15:57 AM
Subject: RE: Oil Lines Worn
Three of the last five Lycomings that I have had access to (with the cowl off) have had damage. You pix was the worst. On a certificated engine the most damage "permitted" is 10% of the tubings wall thickness. You were about 5x that. Kudos to Sean.
Hyrocarbons in proximity of an exhaust system would make for a bad day.
John Cox
From: Scott Schmidt
Sent: Mon 11/1/2010 3:02 PM
To: RV-10 List
Subject: Oil Lines Worn
During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com
[quote]
_blank>http://www.aeroelectric.com//" target=_blank>http://www.buildersbooks.com/=_blank>http://www.homebuilthelp.com/
blank>http://www.matronics.com/contributionget=_blank>http://www.matronics.com/Navigator?RV10-List
p://forums.matronics.com/
[b]
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jcumins(at)jcis.net
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| Posted: Tue Nov 02, 2010 1:16 pm Post subject: Oil Lines Worn |
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Scott
It is a very common occurrence for those line to chafe that way. Over the years a s an A & P mechanic I have made numerous replacement lines. Most just bend them up tords the cylinder a tad to prevent the chafing. On my Saratoga the rod that holds the baffling to the cylinders. It is bent to down to move the rod lower than the return lines. I can take some pics if you like, I need to take the cowling off anyway this week or weekend. As for pressure on that line there is very little it is a valve train oil return line making a path for the oil from the rocker shafts and valves to return to the case.
John G. Cumins
President
[img]cid:image001.jpg(at)01CB7A97.63E08520[/img]
2499 B1 Martin Rd
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Your Total Technology Solution Provider
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Scott Schmidt
Sent: Tuesday, November 02, 2010 1:48 PM
To: rv10-list(at)matronics.com
Subject: Re: Oil Lines Worn
I always say if something is worth doing, it is worth doing right. Glad to know I am in the lead
Sometimes it is embarrassing to air dirty laundry like this but hopefully we all become more aware.
Scott Schmidt
scottmschmidt(at)yahoo.com
From: John Cox <johnwcox(at)pacificnw.com>
To: rv10-list(at)matronics.com
Sent: Tue, November 2, 2010 6:15:57 AM
Subject: RE: Oil Lines Worn
Three of the last five Lycomings that I have had access to (with the cowl off) have had damage. You pix was the worst. On a certificated engine the most damage "permitted" is 10% of the tubings wall thickness. You were about 5x that. Kudos to Sean.
Hyrocarbons in proximity of an exhaust system would make for a bad day.
John Cox
From: Scott Schmidt
Sent: Mon 11/1/2010 3:02 PM
To: RV-10 List
Subject: Oil Lines Worn
During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidt
scottmschmidt(at)yahoo.com
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AV8ORJWC
Joined: 13 Jul 2006
Posts: 1149
Location: Aurora, Oregon "Home of VANS"
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| Posted: Tue Nov 02, 2010 5:34 pm Post subject: Oil Lines Worn |
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Never be embarrassed at sharing information which, when correctly acted on leaves our friends flying safety and our insurance rates more reasonable because the RV-10 becomes a proven work horse.
I still think often of Dan.... and his family.
John Cox
From: owner-rv10-list-server(at)matronics.com on behalf of Scott Schmidt
Sent: Tue 11/2/2010 1:47 PM
To: rv10-list(at)matronics.com
Subject: Re: Oil Lines Worn
I always say if something is worth doing, it is worth doing right. Glad to know I am in the lead
Sometimes it is embarrassing to air dirty laundry like this but hopefully we all become more aware.
Scott Schmidtscottmschmidt(at)yahoo.com
From: John Cox <johnwcox(at)pacificnw.com>
To: rv10-list(at)matronics.com
Sent: Tue, November 2, 2010 6:15:57 AM
Subject: RE: Oil Lines Worn
Three of the last five Lycomings that I have had access to (with the cowl off) have had damage. You pix was the worst. On a certificated engine the most damage "permitted" is 10% of the tubings wall thickness. You were about 5x that. Kudos to Sean.
Hyrocarbons in proximity of an exhaust system would make for a bad day.
John Cox
From: Scott Schmidt
Sent: Mon 11/1/2010 3:02 PM
To: RV-10 List
Subject: Oil Lines Worn
During this years annual it was discovered that the baffle rod that pushes against the oil lines had worn a groove in two of them where the plastic bushing moved.
Here are more pictures of it. Just a heads up to check during those oil changes.
http://www.vansairforce.com/community/showthread.php?p=481129#post481129
Like I mentioned in the thread, I think this occurred in the last 50-100 hours because I typically check this anytime the bottom cowling is off.
I still need to thank Sean for seeing this. I had not checked the left side of the engine yet and he was helping change the oil and caught it. I would hope I would have seen when I inspected the left side but it is always nice to have another pair of eyes check stuff out.
Scott Schmidtscottmschmidt(at)yahoo.com
[quote]
_blank>http://www.aeroelectric.com//" target=_blank>http://www.buildersbooks.com/=_blank>http://www.homebuilthelp.com/
blank>http://www.matronics.com/contributionget=_blank>http://www.matronics.com/Navigator?RV10-List
p://forums.matronics.com/
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