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Injector Cleaning

 
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bigginsking



Joined: 25 Sep 2012
Posts: 27
Location: San Diego, California

PostPosted: Mon Jan 05, 2015 8:03 am    Post subject: Injector Cleaning Reply with quote

Lycoming instructions are here:
http://www.lycoming.com/Portals/0/techpublications/serviceinstructions/SI%201275C%20%2809-23-2008%29/Cleaning%20Fuel%20Injector%20Nozzles.pdf
I cleaned mine after 1000 hrs of operation and my fuel burn dropped by 0.5 gph when running lean of peak.
Gradually they got worse at atomizing the fuel and I wasn't able to run as lean.
Its easy enough to do that I'll probably do it at each annual.
1 hr is a bit long for the hoppes, 20 minutes is recommended, at $30 ultrasonic cleaner might be worthwhile also:
http://www.amazon.com/Professional-Ultrasonic-Jewelry-Eyeglass-Cleaning/dp/B001DKDAVW

Bill
N84WJ, RV-8, 1097 hrs
RV-8.blogspot.com
 

[quote]

     1. 11:22 AM - Cleaning fuel injectors  (Charles Brame)
     2. 11:49 AM - Re: Cleaning fuel injectors  (vanremog(at)aol.com (vanremog(at)aol.com))
     3. 02:13 PM - Re: Cleaning fuel injectors  ()
     4. 03:46 PM - Re: Cleaning fuel injectors  (Bill Gill)
     5. 03:51 PM - Re: Cleaning fuel injectors  (Lyle Peterson)
     6. 04:59 PM - Re: Cleaning fuel injectors  (Charles Kuss)
     7. 04:59 PM - Re: Cleaning fuel injectors  (Charles Kuss)



________________________________  Message 1  _____________________________________


Time: 11:22:20 AM PST US
From: Charles Brame <ChasB(at)satx.rr.com (ChasB(at)satx.rr.com)>
Subject: Cleaning fuel injectors


I have an Air Flow Performance fuel injection system on my Lycoming O-320. The
AFP manual recommends cleaning the fuel injectors every 100 hours. Other than
soaking in Hoppes #9, no detailed instructions are given for cleaning the injectors.

What is the best, approved, method for cleaning fuel injectors?

Charlie Brame
RV-6A  N11CB
San Antonio


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Bill Judge
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JohnInReno



Joined: 08 Sep 2007
Posts: 150

PostPosted: Mon Jan 05, 2015 11:07 am    Post subject: Injector Cleaning Reply with quote

Any idea on a recommended solution to use in an ultrasonic?  I have seen admonitions against using volatile solutions like Hoppe's #9 or MEK but no information on what should be used.  I use an ultrasonic for cleaning rifle cartridges and the solution is intended for brass but I don't know if it would be ok for injectors.

john
RV9A

On 1/5/2015 8:02 AM, Bill Judge wrote:

[quote] Lycoming instructions are here:
http://www.lycoming.com/Portals/0/techpublications/serviceinstructions/SI%201275C%20%2809-23-2008%29/Cleaning%20Fuel%20Injector%20Nozzles.pdf


I cleaned mine after 1000 hrs of operation and my fuel burn dropped by 0.5 gph when running lean of peak.


Gradually they got worse at atomizing the fuel and I wasn't able to run as lean.


Its easy enough to do that I'll probably do it at each annual.


1 hr is a bit long for the hoppes, 20 minutes is recommended, at $30 ultrasonic cleaner might be worthwhile also:
http://www.amazon.com/Professional-Ultrasonic-Jewelry-Eyeglass-Cleaning/dp/B001DKDAVW



Bill
N84WJ, RV-8, 1097 hrs
RV-8.blogspot.com
 




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John Morgensen
RV-9A - Born on July 3, 2013
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PostPosted: Mon Jan 05, 2015 2:42 pm    Post subject: Injector Cleaning Reply with quote

You might want to give this juice a try.

http://www.ultrasonicsdirect.com/12decacl.html?productid=12decacl&channelid=FROOG

 

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