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                           LycomingEngines-List Digest Archive
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                     Total Messages Posted Fri 06/05/15: 1
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Today's Message Index:
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     1. 10:30 AM - Questions from my 'annual'  (Ralph E. Capen)
 
 
 
________________________________  Message 1  _____________________________________


Time: 10:30:23 AM PST US
From: "Ralph E. Capen" <recapen@earthlink.net>
Subject: LycomingEngines-List: Questions from my 'annual'


As part of my recent 'annual', I swapped the plugs upper for lower after cleaning
and regapping.
The #2 lower plug looked like some of the plating was peeling from the outside
of the body.  The uppers looked brand new.
Is this 'plate-peeling' indicative of excessive heat at the plug - or maybe a defect
in manufacturing?  The CHTs all run between 350 and 375 and within five
degrees of each other so I am leaning to a manufacturing defect....

Further along in the inspection process, the #1 intake tube from the head to the
intake/sump is marked as "AEL70485 Rev C" but the rubber tube that connects
the two appears to be short.  Is the intake tube the correct number?  Where can
I get the material that the rubber connecting tubes are made from in bulk? 
It looks like reinforced radiator hose - with an aircraft part number.  I would
like to make that one a quarter inch longer - unless the metal tube is the wrong
one and too short.

Low time IO360B1F6 - fairly regularly run.  Compression tests - 79/80 on all four.
Oil temps 180-190.
RV6A with Sam James cowl and plenum.  LASAR ignition and AFP injection.  Turning
a MTV12B 183-59 three blade MT prop.

Thoughts please,
Ralph 


 

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