Mooney M20V - Page 560

MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Date
MAR 2017
Rev Date
Page
6
C. INTERNAL EROSION - Examine bends and
low spots for thinning or pitting.
D. STANDOFFS (PINS) AND HEAT TRANSFER
FINS - Look for missing or damaged heat transfer pins
or fins. Look for holes at these locations.
E. METAL FATIGUE - Inspect all surfaces for bulg-
ing and distortion, and for groups of small cracks.
-CAUTION-
DO NOT mark any surface with lead pencils or
any carbon- containing markers. A mark with
pencil lead (zinc or galvanized tool) can be
absorbed by the metal of the exhaust system
when heated. This causes a change in its
molecular structure. This softens the metal in
the area of the mark, and can cause cracks and
eventual failure.
F. HIDDEN DAMAGE - Carefully inspect all inter-
nal surfaces that lie hidden under external gussets,
stiffeners, etc. (A borescope is recommended)
G. INSTALLATION TIPS - Install only correct
parts.
DO NOT FORCE FIT any component. Properly align
connecting components.
Do not reuse gaskets.
Insure that attach bolts are properly torqued. Exhaust
flange stud nuts are to be torqued to 100- 110 inch lbs.
78-40-00 - PERIODIC REPLACEMENT
COMPONENTS
It is recommended that all exhaust system pipes,
clamps and miscellaneous mounting hardware be re-
placed at engine overhaul time or as described in
Chapter 5.
Tailpipe V- band clamps shall be replaced with a new
clamp after two (2) removals or at above time frames
(ref. Chapter 81- 30- 01).
-NOTE-
Tailpipe V- Band clamps shall be replaced w ith a
new clamp after two (2) removals or as refer-
enced in Chapter 04- 00- 00 of this Service &
Maintenance Manual. Complete Form QA 1027M
for V- Band clamp installation and insert into
aircraft log book as referenced in Chapter 05.
However, thorough inspection of all components
should be made any time exhaust system is removed
from engine for component replacement. The inspec-
tion should be made in the interest of preventive main-
tenance.
1 Elbow Riser
11 Tie Rod
19 Bolt
31 Screw
2 Elbow Riser
12 Bolt
20 Washer
32 Washer
3 Tee Assembly
13 Lock Nut
21 Lock Nut
33 Lock Nut
4 Tee Assembly
14 Contoured Tailpipe
34 Hose
5 Turbo Transition
35 Hose
6 Turbo Transition
15 Contoured Tailpipe
7Riser
25 Gasket
8 Crossover Assembly
26 Bolt
28 Lock Nut
9 Transition
17 Gasket
29 Bracket
10 Bushing
18 Wastegate Assembly
30 Bracket
27 Washer
22 Controller, Slope
23 Gasket
24 Turbocharger Assembly
16 V- Band Clamp
EXHAUST/TURBOCHARGER SYSTEM - M20V
FIGURE 78- 2
78-40-00