Ken
Changes in boost can be often caused by basic engine problems. I would check
Manifold leaks or restrictions
Fuel system
Air pressure hoses and connections including the small vacuum lines and
connectors
TCU and waste gate
Again, I would carefully check the basics, chances are the turbo itself is
OK.
Good luck
Jerry
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From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of ken carpenter
Sent: Saturday, May 05, 2007 5:44 PM
Subject: Europa-List: surging engine on take-off
Yesterday taking off, the engine surged as the turbo kicked in it went up to
5700 RPM then dropped back into the 4800 range. I tried several runs but
aborted the take-off as it continues to surge. Checked the prop governor
and it checked out as functioning correctly.; Took the cowl off and the
turbo arm seems to cycle correctly when the master turned on and the
throttle cycled. Tied the plane down and ran it up to 5700 rpm. It did not
surge at all.
Any idea? I have not tried to fly it again yet.
Ken Carpenter
N 9XS 914 Mono at 430 hours TT
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