SERVICE TABLE OF LIMITS
PART IV VERTICAL ENGINES
SECTION II CYLINDERS
Ref. Chart Nomenclature Dimensions Clearances
Mfr. Mir.
Old Min. Serv. Min. Serv.
& Max. & Max.
Max. Max.
600 Connecting Rod and Connecting Bushing to be Burnished in Place
Rod Bushing
ALL Finished I. D. of Connecting 1.1254
Rod Bushing 1.1262
onnecting 6.4985
6.5015
6.7485
6.7515
.0025L
.0003L
.0014L .0018L
.0002L
.0010L .002L
1.1242
1.1247
.0005L
.0025L .005L
.5655
.5665
Pin Plug** .7605
.7615
Pin Plug** .8405
.8415
ston -Side
.0025L
.0055L .008L(B)
ston -Side
ig Comp.) .000
.004L .006L(B)
ston -Side .002L
ulating) .004L .006L(B)
ston -Side .003L
per) .0055L .007L(B)
ston -Side
g Comp.) .000
.004L .006L(B)
SERVICE TABLE OF LIMITS
PART IV VERTICAL ENGINES
SECTION II CYLINDERS
Ref. Ref. Chart Nomenclature Dimensions Clearances Mfr. Mfr. New Old Min. Serv. Min. Serv. & Max. & Max. Max. Max.
.020 .030 .047
.045 .055 .067
.015 .030 .047
.015 .030 .047
::: For Choke Barrels -Ring gap is measured within 4 inches from bottoMm. Ring gap at top of travel must not be less than .0075.
For all Other Barrels -Ring gap is measured at top limit of ring travel.
Engine and Piston Application Min. Piston Diameter Cylinder Barrel
Max. Clearance EngineChart Type of Maximum Piston Skirt Code Letter Piston Number Top Bottom Type of Piston Surface Diameter & Cyl.
Forged-Round C 4.8805 .0225L Forged-Round N 4.8805 .0225L Forged-Cam C 4.8805 .018L Forged-Cam N 4.8805 .018L
140 Forged-Round C 5.1305 .0225L
140 Forged-Round N 5.1305 .023L 190 Forged-Cam C-N 5.1305 .018L
190 Forged-Cam C-N 5.1305 .018L
NOTES:
To find the average diameter of cylinder in an area 4" above Maximum taper and out-of-round permitted for cylinder in bottom of barrel: First, measure diameter at right angles service is .0045 inch. from plane in which valves are located. Second, measure diameter through the plane in which valves are located. Add See Service Instruction No. 1243 for identification of cast
and forged pistons. The suffix "S" that will be found with both diameters; this sum, divided by 2, represents the average the part number on 73947, 73976, 74242, 75984, 78203,.diameter of the cylinder.
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