Overhaul Manual
O-360 and IO-360 Series Engines
Cylinder Head
Initially inspect cylinder head. Refer to Figure
72-00-08.4.
Obvious
excessive
damage to
cylinder head
Reject
•
•
•
Visually inspect cylinder head.
(1) Inspect cylinder head valve seats.
Loose, scored,
or pitted valve
seats
Reject
(2) Inspect cylinder for loose or damaged
studs.
Loose or
damaged studs
Reject
NOTE:
Loose or damaged studs must be
replaced with oversized studs using
0.003, 0.007, or 0.012 inch.
(3) Inspect cylinder head spark plug
helical coil inserts.
• Loose or
damaged
inserts
Reject
NOTE:
Loose or damaged helical coil inserts
must be replaced with oversized
insert. See Repair No. 1.
(4) Inspect cylinder rocker box covers,
intake and exhaust ports.
•
•
•
•
•
•
•
•
•
•
•
Nicked, scored
or dented
mounting pads
Blend/hand
polish per
Repair No.2
(5) Inspect cylinder head cooling fins for
cracks.
Fin adjacent to
the exhaust
port flange
See Repair
No.10
Physically
damaged,
broken, or bent
fins
See Repair
No.10
Cylinder Head Dimensional Inspections
Inspect the rocker shaft bushings.
Check the ID of the rocker
shaft bushings a minimum
of two (2) positions, 90
degrees apart. Several
check locations are
preferred.
Refer to
Fits and
Clearances
Cylinder Barrel Inspections
Visually inspect cylinder barrel for general
condition. Refer to Figure 72-00-08.4.
Cracks. Reject
Visually inspect cylinder barrel cooling fins.
Notches and nicks
Blend with
hand grinder
or file. See
Repair No.
10
Visually inspect cylinder barrel skirt.
Bent, cracked, or
broken
Reject
Visually inspect cylinder barrel mounting flange.
Nicks
Blend with
file or crocus
cloth. See
Repair No. 2
Visually inspect cylinder barrel interior.
Minor scoring or
corrosion
Repair by
honing. See
Repair No. 9
Deep scoring or
pitting
Reject
Visually inspect cylinder barrel interior.
Glazing or possible
barrel wear
Repair by
honing. See
Repair No. 9
6
© March 2005 Superior Air Parts Inc.
72-00-08
Inspection and Check
To Next Page
Loading...
Need help?
General
