REFLECTOR: Oil cooling

[Sid Knox]

----- Original Message ----- 
From: "Dave Nelson" <davenali at charter.net>
To: "Velocity Aircraft Owners and Builders list" <reflector at tvbf.org>
Sent: Sunday, July 16, 2006 9:42 AM
Subject: Re: REFLECTOR: Oil cooler VG photo



> I am having a BEAR of a time with oil temps, however.  I've been working 
> on
> this problem for two years now and I'm about at wits end.  I've had
> extensive discussions with Lycoming (and others), and I've done all of the
> obvious things (detailed measurements of the vernatherm per Lycoming specs
> to ensure it's working correctly, flushed the entire oil cooling system to
> ensure no "gunk" build up, inverted the oil cooler to put the connections 
> at
> the top (to eliminate any chance of a bubble), various "scoop" 
> modifications
> to the nose NACA for the oil cooler, MANY test flights (standardized so I
> could gather data)... I even added a bilge fan under the pilot seat to 
> blow
> air into the wiring duct containing the oil lines)...  all to no avail.
> Where I'm at right now is, a short flight at 25 squared on a 85 degree day
> quickly results in oil temps that have exceeded 225 degrees F.

I'm sure the answer is "yes", but I must ask... Are you confident of the oil 
temp sensor location and of its calibration?

Sid

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