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12-30-2016, 12:31 PM
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Join Date: Feb 2016
Location: Boynton Beach, Florida
Posts: 62
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Break-in engine oil
In a few weeks we'll be ready to break in a new 390 and although the break in informational sheet with the engine stipulates using a 50 weight mineral oil, others that have been in the business a while believe not necessary.
Hmmmm, we plan on following the Lycoming protocol.
What about after the break in?
What oil have you settled on?
Phillips with the wear additive?
Without?
Summer vs. winter. North vs. South. Obama vs. Putin.
I search the site for info with no luck.
Found some on Filters.
Plan on using Tempest , it has a magnet. "Imagine that, saids Forest".
__________________
Hank
N14HN Phase 1
140268
B744
Sailplane Racing
Dues
Last edited by frghtdg : 12-30-2016 at 12:33 PM.
Reason: correct spelling
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12-30-2016, 12:49 PM
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Join Date: Jan 2005
Location: SC
Posts: 12,887
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Mahlon at Mattatuck once told me to use Phillips from start to finish with no need to add anything.
Of course, he also said to change it at 10 hours, which I did. I then changed it at 50 hours TT before moving to 50 hour intervals.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
Last edited by N941WR : 12-30-2016 at 01:51 PM.
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12-30-2016, 01:33 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by N941WR
Mallon at Mattatuck once told me to use Phillips from start to finish with no need to add anything.
Of course, he also said to change it at 10 hours, which I did. I then changed it at 50 hours TT before moving to 50 hour intervals.
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Pretty close to the ECI recommendations, see page 13 here -
http://www.eci.aero/pdf/BreakInInstructions.pdf
They say change at 10, 35, 60 hours and then every 50...
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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12-30-2016, 01:43 PM
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Join Date: Mar 2013
Location: Flathead Lake Montana - 8S1
Posts: 334
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I've had 5 Mattituck engines since 1983. Jay Wickham and Mahlon had a slight bias for Phillips oil; Phil Haponic preferred Shell. Mattituck performed some informal tests with old camshafts left outside after dipping them in oil; and although unscientific, the straight grade Shell seemed to offer slightly more corrosion resistance.
If it were my 390, I'd break-in with straight mineral oil and then switch in 25-50 hours to either Philips X/C or AS100W+
__________________
'83 LongEZ - N888EZ 3,671 hours
'89 LimoEZ - N26EZ 686 hours (sold)
A couple of Glasairs and a Lancair 320...
Next: a RV14 need something to build
Last edited by deek : 12-30-2016 at 01:45 PM.
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12-30-2016, 04:40 PM
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Join Date: May 2005
Location: Florida
Posts: 774
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Per Lycoming rep. Straight mineral oil for first 50 hours. 1st change at 10 hours, 2nd at 35 hrs, finally change to your preferred oil from then on. Filters are changed and inspected at each oil change. Don't forget the oil screen at the rear of the engine by at least the 50 hour mark. We will be using Exxon Elite as I have in the last 3 RV6'S. We have had great success with this product. Cheers and have a great new year.
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12-30-2016, 05:29 PM
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Join Date: Apr 2008
Location: Lake Havasu City AZ
Posts: 2,393
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Oil
50 hour oil change interval with filter, 25 hours with screen only. Don't forget the sump screen.
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12-30-2016, 09:02 PM
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Join Date: Jan 2005
Location: NC25
Posts: 3,507
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I prefer to follow engine manufacturer's recommendations regarding oil.
Lycoming Lubricating Oil Recommendations can be found in latest copy Service Instruction 1014.
I believe your engine would be covered under recommendations found in Part II D. That would be to use Mineral Oil the first 50-hours.
Many old timers recommend straight mineral oil. I like using multi-weight mineral oil. The last sentence in Part I B approves multiviscosity 20W50 oil.
I have broken in almost every aircraft engine that I have done cylinder replacement or new engines on Phillips 20W50M and it meets Lycoming requirements called out in SI1014M for most normally aspirated engines that Lycoming presently has in production.
I also like to run Phillips X/C 20W50 after break-in until there are 100 hours on the new cylinders. After 100-hours, I tend to prefer multi-viscosity oils that has the Lycoming additive that is required for the Lycoming Series 76 engines that require extra corrosion protection.
__________________
Gary A. Sobek
NC25 RV-6 Flying
3,400+ hours
Where is N157GS
Building RV-8 S/N: 80012
To most people, the sky is the limit.
To those who love aviation, the sky is home.
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12-30-2016, 11:42 PM
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Join Date: Jan 2005
Location: 57AZ - NW Tucson area
Posts: 10,011
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Quote:
Originally Posted by RV6_flyer
I prefer to follow engine manufacturer's recommendations regarding oil.
Lycoming Lubricating Oil Recommendations can be found in latest copy Service Instruction 1014.
......
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Interesting variation on the timing for the first oil change from the Lycoming SI wrt the other times mentioned earlier -
2. Do not operate the engine longer than five hours before the first oil change.
__________________
Gil Alexander
EAA Technical Counselor, Airframe Mechanic
Half completed RV-10 QB purchased
RV-6A N61GX - finally flying
Grumman Tiger N12GA - flying
La Cholla Airpark (57AZ) Tucson AZ
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12-31-2016, 05:23 AM
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Join Date: Jan 2005
Location: Yorkshire, England
Posts: 2,052
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Spoke with Mahlon prior to our start on our ECI motor and followed his recommend but we used Shell as Phillips not readily available here in the UK.
Changed oil at 5, 20 and from then on we always change at 25 hours or every 4 months whichever comes sooner. Please do not forget the calendar suggestion as many of us do not fly the hours off. If you were a sole pilot, doing maybe 20 - 50 hours a year, I would be changing the oil each 6 months when you inspect the airplane. Oil changes represent the cheapest and best maintenance for any motor.
Multigrade offer many benefits and evidence shows that it gives better lay up retention on the cam.
Brand - whatever is your preference, I doubt any of them have the miracle ingredient that is unobtainable elsewhere.
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"I add a little excitement, a little spice to your lives, and all you do is complain!" - Q
Donated in 2020
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