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 -. --..
.- ------. ----. ,
,
NOTE
INSPECTION AND REPAIR
If honing results in exceeding cylinder bore or
out-of-round limits,
cylinder to next over-
NOTE
size. Pistons and rings are available in 0.010-,
0.020-, and
oversize.
If engine block is cracked, engine cannot be
repaired. Save all salvageable parts.
E
Inspect cylinder walls for scratches, scoring, and pitting. If
only lightly marred, walls may be honed.
cylinders if
A Use magnetic-particle inspection or dye-penetrating
deeply scratched.
method to check cylinder block for cracks.
F
Measure and record diameter of cylinder walls. Measure
Make sure milled surfaces are free of pitting, burrs, carbon
B
cylinder wall in direction of crankshaft, and again 90
or damage. Remove gasket pieces and gasket cement from
degrees to crankshaft. Measure upper and lower bore to
these surfaces.
determine out-of-round condition. Compare measurements
to following specifications:
C Remove burrs from all bolt holes in machined surfaces.
diameter
(1) Cylinder bore:
D Inspect cam tappet bores for scratches, scoring, and pit-
Out-of-round limit
maximum
ting. If necessary, lightly hone bores to remove
and
(3) Taper:
maximum
scratches. Do not exceed the following limits:
G With piston installed, measure piston-to-cylinder wall
diameter
(1) Minimum bore
clearance 90 degrees from axis of piston pin and below oil
diameter
(2) Maximum bore:
control ring. Clearance should be 0.0050 to 0.0070 inch.
Oversize pistons may be used to obtain proper clearance.
1245
TM
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