Exhaust Bypass Valve Replacement - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
G. Install the oil drain tube assembly and a new gasket (Figure 5) on the turbocharger with the
two bolts, new lock washers, and washers. Torque the bolts to 30 ft.-lb. (41 Nm).
H. Install the oil adapter (with the restricted elbow assembly and reducer adapter) and a new
gasket (Figure 5) on the turbocharger with the two bolts, new lock washers, and washers.
Tighten the bolts securely.
I. Attach the hose assembly to the reducer adapter (Figure 6) on the turbocharger. Torque the
hose per torque values in the latest revision of the Service Table of Limits - SSP-1776.

7. Exhaust Bypass Valve Replacement

A. Exhaust Bypass Valve Removal
(1) Disconnect the bypass hose from the exhaust bypass valve (Figure 8).
(2) Disconnect the wastegate control hose from the exhaust bypass valve.
(3) Remove the V-band coupling and gasket (Figure 6) that attaches the exhaust bypass valve
to the exhaust transition. Discard the gasket.
(4) Remove the exhaust bypass valve.
B. Exhaust Bypass Valve Installation
(1) Attach the exhaust bypass valve to the exhaust transition with the V-band coupling and
new gasket (Figure 6).
(2) Torque the V-band coupling per the Standard Torque Tables in the latest revision of the
Service Table of Limits - SSP-1776.
(3) Connect the wastegate control hose (Figure 8) to the exhaust bypass valve. Torque the
wastegate control hose fitting per the Standard Torque Tables in the latest revision of the
Service Table of Limits - SSP-1776.
(4) Connect the bypass hose (Figure 8) to the exhaust bypass valve. Torque the bypass hose
fitting per the Standard Torque Tables in the latest revision of the Service Table of Limits
- SSP-1776.
© 2018 Avco Corporation. All Rights Reserved
November 2018
Figure 8
Exhaust Bypass Valve
72-40
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