Lack of power in Cessna 172-R

"Chuck" wrote in message
...
Hi, all,
First, I want to thank everyone who made suggestions.

Gary, a compression check was done on all cylinders and the
compression is fine. The power for a full-power static runup should be
2065 to 2165 with the mixture leaned for max rpm. The actual rpm is
about 2150.
I think this is the most significant thing said. There is no way that the
engine should give higher revs on the static check, than on the takeoff
roll, unless something is making a 'difference' between the configuration. I
see latter, that you say you lean for the power check, but not the take-off
roll. The obvious question at this point, is what altitude the field is at?.
If it is below perhaps 3000 feet, then the difference, together with the
noise reported really solidly implies that the injection is running rich at
it's default settings. If you are higher than this, then you should really
be considering leaning for takeoff.

snipped
Aaron Coolidge, your comment about the fuel injection is also
interesting. I will certainly ask our mechanic to check it (since the
plane is in for its annual anyways). I did not, however, notice loss
of power, but at minimum rpm (with the throttle full out) it does not
idle very well -- it feel like it's going to stop.
Rich...

George Patterson, you say it's running way to rich. I was wondering
way you say this, but you just may be right. To correct this I


Once again, thanks to everyone.

Chuck
I think George has hit the nail on the head.

Best Wishes