MOONEY INTERNATIONAL CORPORATION
M20V SERVICE AND MAINTENANCE MANUAL
Page
Date
14
MAR 2017
Rev Date
7/8- 14
2500- 3000 1500- 1800 3550- 4350 2100- 2600
1- 14 3700- 5500 2200- 3300 4500- 5500 2700- 3300
11/8-12 5000- 7000 8000- 4200 6000- 7300 3600- 4400
11/4-12 9000- 11000 5400- 6600 11000- 13000 6600- 8000
COARSE- THREAD SERIES
8- 32 12- 15 7- 9 - -
10- 24 20- 25 12- 15 - -
1/4- 20 0- 50 25- 30 - -
5/16- 18 80- 90 48- 55 - -
3/8- 16 160- 185 95- 100 - -
7/16- 14 235- 255 140- 155 - -
1/2- 13 400- 480 240- 290 - -
9/16- 12 500- 700 300- 420 - -
5/8- 11 700- 900 420- 540 - -
3/4- 10 1150- 1600 700- 950 - -
7/8- 9 2200- 3000 1300- 1800 - -
Reference: Federal Aviation Agency Advisory Circular No. 43.13- 1( )
Recommended Torque Values for Nut- Bolt combination
1.Be sure nut and/or bolt threads are clean and dry (unless Mfg. states otherwise).
2.Run bolt down near contact with washer or bearing surface and check “friction drag torque” required to turn
bolt/nut.
3.Add “friction drag torque” to the recommended torque value from Torque Table above. This value is considered
“Final Torque Value”:
(FRICTION DRAG TORQUE + RECOMMENDED TORQUE = FINAL TORQUE).
-CAUTION-
DO NOT REUSE LOCKNUTS IF THEY CAN
BE RUN UP FINGER TIGHT.
5-20-02 - AIRCRAFT FILE INSPECTION
Aircraft 100- hour and annual inspections cover, in
addition to examining the aircraft proper, a review of the
status of compliance with current Federal Aviation
Regulations. This review includes inspection of the Air-
plane Flight Manual, Aircraft Log Book, Engine Log
Book, Registration Certificate, Airworthiness Certifi-
cate, Weight & Balance Record, Engine Service Infor-
mation, Aircraft Radio Station License (if applicable),
FAA Airworthiness Directives, and Mooney service
documents.
5-20-03 - ENGINE FUNCTIONAL CHECK
Prior to a scheduled 100- hour or annual inspection,
and/or 25 hours after installation of new or overhauled
engine, wash down the engine and engine compo-
nents. Then perform an engine runup in accord with
procedure recommended in the Airplane Flight Manu-
al. Make a record of all malfunctions and abnormalities.
After the engine runup, complete a differential (hot en-
gine) compression check. To verify correction of mal-
functions and abnormalities, perform a second engine
runup and a flight test after completing the inspection.
5-20-04 - FIRST 25- HOURS INSPECTION (Non-
Repetitive)
The, one time, 25- hour inspection consists of a visual
inspection of the propeller , engine, and aircraft general
condition, including a preflight inspection as outlined in
the Airplane Flight Manual. The inspection does not re-
quire removal of all access panels or disassembly of
components; however, it should include completion of
all lubrication & service requirements. The inspection
should be extensive enough to detect any damage or
maladjustment which might jeopardize flight safety . Af-
ter the first 25 hours of a new or overhauled engine op-
eration, refer to paragraph 5- 20- 05 for the recom-
mended engine inspection.
5-20-02
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