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YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
Cylinder Assembly Inspection Checklist for YO-233-B2A Engine Models (Cont.)
Item to Examine and Corrective
Action
Look for static seal leakage or
leakage from the head-to-barrel
seal or crack in the head or barrel.
Corrective Action:
Replace any cylinder that has
leakage at the cylinder head or
barrel.
Look for scratches in the honed
surface of the cylinder wall or
cylinder bore.
Corrective Action:
Hone the cylinder to remove the
scratches. Refer to the latest
revision of the Service Table of
Limits - SSP-1776 for dimensions
and limits.
Make sure there is not any
cylinder head-to-barrel flange
movement.
Corrective Action:
Replace any cylinder that has any
cylinder head-to-barrel flange
movement.
Examine mounting pads (for
intake and exhaust ports) for
nicks, scoring or dents.
Corrective Action:
Replace all nicked, scored, or
dented mounting pads for intake
and exhaust ports.
© 2021 Avco Corporation. All Rights Reserved
February 2021
Cylinder
No.
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
Findings / Corrective Action
72-30
Page 117
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