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Initial start after depreservation and break-in

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KT247

Joined: 25 Sep 2009
Posts: 2

Posted: Fri Sep 25, 2009 6:41 pm Post subject: Initial start after depreservation and break-in

This is my first post in this forum and want to thank Matt for maintaining it.  



I have an M14P that I'm in the process of de-preserving.  The motor's currently hanging from a hoist with its motor mount attached.  As I'm draining the oil from various places, I found some paraffin in the cylinders.  



What I'd like to do is flush the motor and cylinders out with something.  At this point I'm not sure what to use.  I feel the safest thing would be to use some Aeroshell W120 oil diluted with 100LL.  I don't know what chemicals would adversely affect the seals in the motor.  Looking for recommendations.    



I have read through all the task cards in the maintenance manual but haven't found anything regarding a break-in procedure.  Does one exist?



Thanks in advance for any advice

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george(at)gesoco.com
Guest

Posted: Sat Sep 26, 2009 5:15 am Post subject: Initial start after depreservation and break-in

They washed them with avgas. Your idea of a little oil sounds good. The

engines have been "run in" on the test stand. That said we always use 100

mineral oil for the fires 5 hours. We do an oil change and check all joints,

fittings exhaust nuts. Then run an additional 25 to 30 hours on mineral oil.

(all they had over there was mineral oil). At around 30 hours, we check the

valve clearances and  compressions. We then switch to the oil that the

customer prefers. The last few years it has been the Phillips multigrade

"radial engine" oil  

George Coy

CAS Ltd.

714 Airport Rd.

Swanton VT 05488

802-868-5633 off

802-363-5782 cell

george.coy(at)gmail.com

http://coyafct.com/

SKYPE george.coy



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