From: "Marvin Kaye" <marv@lancaironline.net>
Subject: Re: N686KB Lancair 360 cooling
To: lml
Date: Sun, 04 May 2003 20:43:43 -0400
Message-ID: <web-2333002@logan.com>
In-Reply-To: <693643DCBA71E34697A495AFB8C573611AF988@bne523deb.exchange.server-login.com>
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Posted for "Berni Breen" <bbreen@ftrgold.com>:
    
Not too long ago there was considerable valuable information on this
site regarding cooling as it pertains to the Lancair 360 model.  I am
hoping that some of you may be inclined to help me out with a response
to my issues.
   
I own a Lancair 360 that I bought (building another in the meantime)
from a gentleman who built the airplane in Canada.  When I got it, it
had 2 oil coolers.  During the U.S. airworthiness certification process,
the A&P I used to ready the airplane strongly suggested that one of the
coolers be removed.  He said it was unnecessary and only added unwanted
weight.  I reluctantly went along with him, which may or may not prove
to have been a mistake.  Unfortunately I did not have very much flight
time in the airplane with the 2 coolers to know whether or not I would
have encountered overheating.  For all I know I would have.
   
With the single cooler configuration, mounted to the firewall, fed
outside air via 3" scat hose, I am now encountering overheating issues
whenever I take off with the engine warmed up to 180 degrees of oil
temperature.  If I get off with the oil temp at 130 degrees or less, I
do not have an issue, as I reach altitude before overheating is
experienced.  I never experience overheating at straight and level (no
engine load), or even at climb to higher altitudes as long as I do it
gingerly.  In short, any load applied to the engine is performed at the
risk of significantly high oil (240 degrees +) temperatures.
   
I will be very appreciative of any and all suggestions as to how I might
address my problem.      
   
Berni P Breen
7623 Fairway Drive
Diamondhead MS, 39525
Home: (228) 255-9558
Cell: (228) 342-2521
bbreen@ftrgold.com