and items such as fuel and oil tanks, electrical components, and
wiring must not be directly attached to the aft firewall unless protective measures are employed.
TROUBLESHOOTING
Troubleshooting and correcting high temperatures can be challenging, but a solution to the problem should always be available.
Many times a solution is a simple change to what may seem like a
complex task that you are tempted to ignore. Before attempting
corrective action, take time to think about what the exact problem is: Make written notes as to when it occurs, and list possible
steps that may be taken to correct the trouble. Is there really a
problem? Is the instrumentation correct? What are other own-ers/builders experiencing and what have they done to correct a
similar problem?
When troubleshooting, always start with the easy and inexpensive items. Since engines do create heat, is the heat produced
within the parameters for the particular engine installation? Are
the ignition timing and fuel air mixture correct? Is the engine in
good health, with acceptable compression and oil consumption?
Is the propeller and spinner the correct one for the aircraft and
engine combination? What about the exhaust system; is it a
design of your own or one that has been successfully used by others with the same aircraft and engine installation? How about the
oil cooler and associated hoses and routing of the hoses to an
external cooler? Are the lines or tubes insulated or routed away
from the exhaust and turbocharger? Can heat shields or fire
sleeves be installed to prevent heat transfer?
FINAL THOUGHTS
Throughout my years of aviation experience I have seen the
unfortunate effects of excessive heat on aircraft engines. The
causes of excessive heat can typically be traced back to improper
construction, maintenance, or operating techniques. Operating an
aircraft within acceptable limitations and discontinuing operation should something happen is not only the safest plan of
action, but may also be the most economical.
Mike Berry, EAA 264353, is a retired airline captain with 16,600 hours of flight time and
177 aircraft types flown. He is also an A&P mechanic with an inspection authorization and
owned an aircraft repair shop for several years.
INSTRUMENTS!
FOR YOUR LSA or KIT PLANE
2-1/4” Panel Mount
Magnetic Compasses
Unlighted ...............Cat. No. A-027-100............................... $74.50
Lighted...................Cat. No. A-085-100 ............................... $84.95
3-1/8” Sensitive Altimeter
0-20,000’ ............... Cat. No. A-064-000 ............................. $239.00
3-1/8” Low Range Airspeeds
0-120 ..................... Cat. No. A-066-000 ............................. $109.50
0-150 ..................... Cat. No. A-065-000 ............................. $109.50
CHTs w/Probe
14 mm................. Cat. No. A-092-014 ............................... $52.50
18 mm................. Cat. No. A-092-018 ............................... $52.50
3-1/8’ Rate of Climb
0-2,000’ ................. Cat. No. A-067-000 ............................. $110.00
2-1/4” Inclinometer
10/10 Scale ........... Cat. No. A-012-000 ............................... $42.25
A-027-100 A-064-000
A-066-000
A-067-000
A-012-000
A-092-014
WAG-AERO 1-800-558-6868
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S/A61
Non-TSO’d Instruments Imported for Wag-Aero PLACE YOUR ORDER BEFORE JULY 20TH
