Lycoming TEO-540-C1A Maintenance Manual page 42

Visual Inspection Checklist for TEO-540-C1A Engines (Cont.)
Cylinders - Refer to Figures in Chapter 72-30.
Item to Examine
NOTICE: During the first hours of service, engines can have some leakage at the cylinder base or
the cylinder base studs. This initial leakage is not harmful or detrimental to the engine.
Exhaust or combustion residue - Identify
and correct the cause.
Examine the cylinders for heat damage
i.e. burnt paint and damaged fins.
(Identify whether the paint has scaled or
peeled from discolored and blistered paint
appearance. Unburned metallic surfaces
appear bright or clean with definite
edges.) - Identify and correct the cause.
Examine the exhaust system, exhaust
flange and port connections for leaks in
connections between the exhaust system
and exhaust ports of cylinders - look for
burnt paint around the spark plug and
exhaust flange bosses or for light gray
deposits near the leaks; look for a warped
exhaust flange (which can cause a leak.) -
Identify and correct the cause. Replace
exhaust pipes that have a warped flange.
Examine studs on the cylinder head for
looseness or damage. Replace loose or
damaged studs.
Examine the following for cracks, rust/pitting and damage - replace cracked, rusted, pitted or
damaged cylinders per instructions in Chapter 72-30.
External cylinder barrel and cooling fins.
External surface of the cylinder head and
fins including areas between and adjacent
to the fins.
Look for any radial fin crack extending to
the root of a fin on the cylinder.
Top and bottom spark plug bosses.
Follow-Up Action:
05-20
Page 12
TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual
Cyl. 1 Cyl. 2 Cyl. 3
© 2018 Avco Corporation. All Rights Reserved
Cyl. 4 Cyl. 5 Cyl. 6
November 2018