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Date: Mon, 17 Nov 2008 14:24:37 -0500
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Subject: RE: [LML] Re: Fine Tuning EGT's
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From: "John C. Bohn" <JohnB@agcheattransfer.com>

I don't know how much you fly but I've found my plugs need to be cleaned
and gapped about every 50-75 hours for best performance.

John C. Bohn
4P- N28487
Direct (Cell)- 503-887-2933


-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
Lancair
Sent: Monday, November 17, 2008 8:19 AM
To: lml@lancaironline.net
Subject: [LML] Re: Fine Tuning EGT's

=20
As long as we are airing engine temp issues . . . I have one also.

I am running a TSIO550-EXP with one Lightspeed Plasma III and one mag.
For a year I would climb to cruise altitude, pull back to 32 inches and
2450 rpm, lean to 17.3 gph, and go merrily on my way.  EGTs were
1550-ish, TITs were 1580-1620, and CHT varied with the season (390 in
the summer and 350 in cooler times).  However about 4 months ago my EGTs
began to increase and with them the TITs.  Now to keep TIT below 1625=
 I
must lean back to 16.3 - 16.5 gph, and that yields a slower TAS. =20

Anyone suggest a cause and cure?

Robert M. Simon
ES-P N301ES

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