Figure 198. Crane engine piton and connecting rod assembly, removal and installation.
b.
Inspection and Repair.
(3) Remove the crane engine piston and
connecting rod assemblies from the
(1) Inspect the pistons for wear, galling,
engine block as instructed on figure 198.
scoring burned condition, and out-of-
b.
Disassembly. Disassemble the piston and
round. The piston diameter is 4.233
inches minimum and 4.441 inches
connecting rod assemblies in the numerical sequence as
maximum.
The wing groove width
illustrated on figure 199.
diameter is 0.097 inch minimum and
0.098 maximum.
Replace defective
356.
Crane Engine Piston and Connecting Rod
pistons.
Assemblies Cleaning, Inspection, and Repair
(2) Inspect piston for cylinder bore fit and
a.
Cleaning.
clearance. Pistons should be fitted with
the cylinder bore of the block at room
(1) Clean all parts with an approved
temperature, 6875 F.
-
Check the
cleaning solvent.
piston fit in the cylinder bore using a
(2) Remove carbon deposits from all parts.
strip of 0.004 inch feeler gauge stock,
Remove all loose carbon particles with
the feeler being attached to a
compressed air or a lint-free cloth.
AGO 6819A
219
