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  #1  
Old 02-02-2022, 08:21 AM
turbo's Avatar
turbo turbo is offline
 
Join Date: Jan 2007
Location: Stuart, FL /Hartford, CT/Virgin Gorda,BVI
Posts: 3,263
Default Oil control ring solvent flush

https://resources.savvyaviation.com/...vent-flush.pdf

sounds like a good thing to know.
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Ed D'Arcy
RV6-A 5,400+ hrs, R-44 1,700 hrs, Helicycle traded for 33 FFR coupe, 300 young eagles flown
Stuart, Fl / East Hampton,Ct / Virgin Gorda, BVI - villa sold.
VAF #840 EAA AOPA FAC FABA QB SPA
addicted pickle ball player
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  #2  
Old 02-02-2022, 09:15 AM
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airguy airguy is offline
 
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,863
Default

Quote:
Originally Posted by turbo View Post
Pro-tip - using the aircraft starter to rotate the prop instead of doing it by hand will make the job go much faster.

Just kidding guys - DON'T do that...
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Garden City, TX VAF 2022 dues paid
N16GN flying 1,000 hrs and counting on 91E10; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
Pending Repeat Offender - 10 kit is on order. TDI? Turbine? Stay tuned!
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  #3  
Old 02-02-2022, 10:23 AM
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Walt Walt is offline
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 6,717
Default

And after you're done don't forget to add some Marvel Mystery oil
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EXP Aircraft Services LLC
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RV7A built 2004, 2000+ hrs, New Titan IO-370, Bendix Mags, MTV-9 prop
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  #4  
Old 02-02-2022, 11:55 AM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Southwest
Posts: 2,328
Default Real or Memorex

Is this a real concern?

Seems like this is mainly for engines that have been sitting for a while where the oil is questionable?
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WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2022, worth every penny

RV9A- Status:
98% done, 2% left to go
Structure done (less gear)
Electrical/Panel done
Firewall Forward 95% done
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  #5  
Old 02-02-2022, 03:29 PM
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Bob Martin Bob Martin is offline
 
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Location: Charlottesville, Virginia
Posts: 1,313
Default

Very good thing to know!
Thanks for posting!
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RV-6, 0-360 Hartzell C/S, Tip up, 1200+TT
James extended cowl/plenum, induction, -8VS and Rudder. TSFlightline hoses. Oregon Aero leather seats.
D100-KMD150-660-TT ADI2- AS air/oil seperator. Vetterman exhaust with turndown tips.
Louisa, Virginia KLKU N94TB
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  #6  
Old 02-02-2022, 03:48 PM
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rocketbob rocketbob is offline
 
Join Date: Jun 2006
Location: 8I3
Posts: 3,836
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I have cleaned pistons in a similar concoction with an ultrasonic cleaner and found it worked well. I have a customer that has a great running O-320 that uses a bit of oil and it gets dirty fast. Will try this on his engine to get some data. On an RV with the exhaust running downhill and nowhere for the solvent to collect there's very little risk in trying this. Thanks for posting.
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N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
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  #7  
Old 02-02-2022, 04:04 PM
Tracer 10 Tracer 10 is offline
 
Join Date: Mar 2011
Location: Oregon
Posts: 173
Default Piston oil ring flush.

I followed this exact procedure on my RV-6 O-320 160HP. On cylinders 1,2 & 4 about 2 months ago. #3 cylinder was new.
It has made a big difference in oil consumption as well as how clean the oil appears on the dipstick. About 700 hours on these cylinders since O/H with good compression.
It takes a lot of force on the prop to force the “witches brew” past the oil control ring & thru the drain holes. Wear gloves & take it slow. I did it twice on each of these 3 cylinders.
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  #8  
Old 02-02-2022, 04:49 PM
azonic75 azonic75 is offline
 
Join Date: Dec 2010
Location: Salem, OR
Posts: 138
Default It works

Hard to do this without making a toxic mess and people will think you are running a meth lab. Make sure you are on the compression stroke when you pour in the flush!
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