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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