Hi,
We have a 914 with Airmaster prop, but no intercooler.
At 75% power 5000rpm and 31 in Hg, we get 5.6 GPH mogas burn. We call it
6.0 just to be on the safe side.
Our spark plugs are normally a little carbon black on the front and tan on
the back ones.
7.5 gph seems excessive and would think it's the flow meter not reporting
correctly.
Matt Carpenter
N138WJ
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of h&jeuropa
Sent: Saturday, April 17, 2010 11:53 AM
Subject: Europa-List: 914 Fuel Flow
Posted: Sat Apr 17, 2010 8:52 am Post subject: 914 Fuel Flow
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We are finally starting to fly cross country and use cruise power settings.
We have a 914 with intercooler and Airmaster constant speed prop in our
Europa. When using 75% power per section 10.1.1.1 (5000 rpm 31 in Hg) we see
fuel flow of 7.5 gph. Our EGTs are about 1450. The spark plugs have a nice
tan color to them. The fuel consumption graph (fig. 11) suggests fuel flow
should be about 5.5 gph.
If we throttle back to 5000 rpm, 29 in Hg, fuel flow drops to 6 gph. Not
sure where this setting puts us on the consumption graph!
What fuel flow do others see? What power settings do others use?
Is our mixture too rich and is that adjusted by changing the position of the
needles in the carbs? Dean at Lockwood said don't change anything, mostly
because the plug colors are correct.
Thanks
Jim & Heather
N241BW
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