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m84-8 Timming Indicator

The document is a service bulletin from Teledyne Continental Motors regarding magneto timing indicator plates on certain aircraft engine models. It recommends eliminating the use of timing indicator plates and using the magneto timing procedures in service bulletin M80-27 instead to improve accuracy. The action is not covered under warranty and should be completed at the next starter adapter rework or engine overhaul.

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Norberto Iglesias
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184 views1 page

m84-8 Timming Indicator

The document is a service bulletin from Teledyne Continental Motors regarding magneto timing indicator plates on certain aircraft engine models. It recommends eliminating the use of timing indicator plates and using the magneto timing procedures in service bulletin M80-27 instead to improve accuracy. The action is not covered under warranty and should be completed at the next starter adapter rework or engine overhaul.

Uploaded by

Norberto Iglesias
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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CONTINENTAL AIRCRAFT ENGINE

M84-8

service bulletin
Supersedes M80-21
Technical Portions are
FAA-DER Approved

19 June, 1984
TO: Aircraft Manufacturers, Distributors, Dealers, Engine Overhaul
Facilities, Owners and Operators of Teledyne Continental Motors
Aircraft Engines.
SUBJECT: MAGNETO TIMING INDICATOR PLATE
MODELS
AFFECTED: O-470, IO-470, TSIO-470, IO-520 and TSIO-520
COMPLIANCE: At next starter adapter rework or engine overhaul.
WARRANTY: The action required to comply with this service bulletin is not covered by
the TCM Gold Medallion Warranty.
Magneto timing errors may be attributed to improper use of timing indicator plates. Therefore,
we have eliminated using the timing plate, part number 628760, on all current production new
and rebuilt engines. All affected publications will reflect this part removal as they are revised.
We recommend using the magneto timing procedures as listed on our current service bulletin
M80-27 for accurate magneto timing.

TELEDYNE INDUSTRIES, INC. 1984 TELEDYNE CONTINENTAL MOTORS


Member of GAMA Aircraft Products Division
General Aviation
Manufacturers Association
PO Box 90 Mobile Alabama 36601

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