The cable swivels arrived in the mail
yesterday afternoon. I went out to the
hangar this morning and installed them.
The control arm on the oil shutter was thin enough that the swivel
installed with only drilling a hole. I
cut the control wire to the right length and installed the swivel. I have the controls arranged so with the control knobs pushed all of the way in the oil shutter and duct damper door are open.
Pulling the 'OIL' control knob less than an inch
closes the shutter. I then installed the
swivel on the air duct damper. It took a
little more work. The material I used
for the control arm was too thick to allow the swivel to turn. I removed the arm and put it in my bench
vise. I used my Vixon file to reduce the tickness of a section of the control arm. I deburred
the arm with my Scotch Brite wheel and drilled a hole. I reinstalled the arm and installed the
swivel. By pulling the 'AIR' control knob
about 1-3/4” it closes the damper door.
I reinstalled the top cowling and finished installing the screws on the
lower cowling. I then pulled the airplane out of the hangar and went up for a
test flight. To my joy and satisfaction as soon
as I started the engine and closed the oil shutter the oil temp began to
rise. I finished buckling in and started
to taxi to the end of the runway. To my
amazement, by the time I arrived at the end of runway 34 the oil temp was at
124o. It started at 40o. About half way to the runway I closed the air
duct damper door. I think that also helped to raise the oil temperature. I took off and flew
for 0.8 hours. With minor adjustments to
the shutter and damper door the oil and head temperatures were right where they should
be. The OAT was -2o C. I am pleased with the results.
