Coil Assembly Replacement - Lycoming TEO-540-C1A Maintenance Manual

B. To Close the Coil Box:
CAUTION
NOTICE: Make sure all bolts (Figure 2) are correctly torqued and all ignition leads are secured
before installing the coil box lid.
(1) Install the coil box lid (Figure 1) with two nuts and washers and 15 screws each with a
washer and new lock washer.
(2) Torque the screws and nuts to the specified torque limits in the Standard Torque Tables in
the latest revision of the Service Table of Limits - SSP-1776.

2. Coil Assembly Replacement

A. Coil Assembly Removal
WARNING MAKE SURE THE BATTERY HAS BEEN DISCONNECTED FROM THE
(1) Remove coil box lid per instructions in the "Coil Box Access" section in this chapter.
(2) Remove the harness connector from the coil assembly.
(3) Remove the bolt, lock washer, and washer (Figure 2) from the coil assembly to be
removed. Discard the lock washer.
(4) Slide the coil assembly horizontally towards the center of the coil box bottom half to let
the coil assembly slide out of the silicone seal on the ignition lead.
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MAKE SURE BEFORE CLOSING THE COIL BOX THAT THERE IS NO
FOREGIN OBJECT DEBRIS (FOD). REMOVE ALL FOD FROM THE
COIL BOX.
ENGINE.
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Figure 2
Coil Box Base
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November 2018