[NSRCA-discussion] A really big thank you toeveryone whomadethe Weak Signals Precision Aerobtics contesta success

[Glen Watson]

In addition to lubing the engine manually prior to initial runs I have begun
following Richard Verano's advice as Mark Atwood describes of breaking in my
170's by running at least 40ozs of fuel thru them at fast idle. The break-in
process consists of running the engine in 10 minute intervals then allow an
adequate cool-down period between runs.  At a fast idle 3500-4000rpms you'll
be surprised how quick 40ozs is utilized.  This is done in the aircraft.
After break-in runs have been completed I set the high speed then the idle
and go-fly.

Have done this to 4 different 170's (none CDI) which all have exceeded my
performance expectations in the areas of longevity, idle and overall running
consistency. The oldest of the four engines which started service early 2008
pre-NATS which had approx. 275 flights was recently sent to YS Parts and
Service, still performing good by the way, returned needing a ring, rear
bearing and valve cover gasket kind of normal maintenance stuff.  The other
three are still in service 1 in my primary plane, 1 in my back-up plane and
the third on the shelve ready to use if/when needed.

User configuration:
CP 30% heli
YS plug
Props - 15X11 4bld, 18.1X11 2bld
2009 triple digit Texas summer heat 

Hope this information is helpful...

Best regards,

Glen Watson
http://glenwatson.blogspot.com/



-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Atwood, Mark
Sent: Thursday, August 13, 2009 1:18 PM
To: mmurphy178 at comcast.net; General patterndiscussion
Subject: Re: [NSRCA-discussion] A really big thank you toeveryone whomadethe
Weak Signals Precision Aerobtics contesta success

Did you break the engine in at idle for a while before allowing it to be run
up to full throttle?  These engines can be REALLY tight when they first
arrive.  Richard advised not running the engine past an idle for the first
few tank fulls.  

On my engine (I know...not a good example for the weekend) I was barely able
to get the engine to idle below 4000rpm for the first tank.  After that it
got progressively better quickly and by the third tank I could sit steady at
2100.  At that point I began running it up and setting the top end.  Other
than stripping the head this weekend trying to replace a glow plug (and
forgetting to fuel it in the semi's at the nats!) it's been running really
well.

I'm not sure what NOT breaking it in will do.  Troy??

-M

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
mmurphy178 at comcast.net
Sent: Thursday, August 13, 2009 2:19 PM
To: Bob Kane; General pattern discussion
Subject: Re: [NSRCA-discussion] A really big thank you to everyone
whomadethe Weak Signals Precision Aerobtics contest a success

Yes, about 3 gallons. 

Sent from my BlackBerry Smartphone provided by Alltel

-----Original Message-----
From: Bob Kane <getterflash at yahoo.com>

Date: Thu, 13 Aug 2009 10:58:58 
To: <mmurphy178 at comcast.net>; General pattern
discussion<nsrca-discussion at lists.nsrca.org>
Subject: Re: [NSRCA-discussion] A really big thank you to everyone
whomadethe Weak Signals Precision Aerobtics contest a success


Is this a relatively new engine?

 Bob Kane
getterflash at yahoo.com



----- Original Message ----
From: "mmurphy178 at comcast.net" <mmurphy178 at comcast.net>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Thursday, August 13, 2009 1:59:24 PM
Subject: Re: [NSRCA-discussion] A really big thank you to everyone
whomadethe Weak Signals Precision Aerobtics contest a success

Thanks for the YS advice. Tonight I will check the valve clearance, fuel
lines, and plug. Then tomorrow, out  to the field to look at that HS Needle.


Mike M. 
Sent from my BlackBerry Smartphone provided by Alltel

-----Original Message-----
From: Bill Pritchett <billpritch at yahoo.com>

Date: Thu, 13 Aug 2009 09:45:07 
To: General pattern discussion<nsrca-discussion at lists.nsrca.org>
Subject: Re: [NSRCA-discussion] A really big thank you to everyone who
    madethe Weak Signals Precision Aerobtics contest a success


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