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VILTER MANUFACTURING CORPORATION
VILTER MultiCylinder Compressor
400 Series VMC 2/01
SERVICE - 34 - Replaces all Previous Issues
TABLE 5. FACTORY RUNNING DIMENSIONS, TOLERANCES, CLEARANCES & ALLOWABLE WEAR
LIMITS FOR 440, 450 & 450XL VMC COMPRESSORS (cont’d)
ITEM
PART NAME
COMPRESSOR
SIZE
DIMENSION
TOLERANCE
CLEARANCE
MAXIMUM
ALLOWABLE
WEAR
5 Piston Pin Bore ALL 1.1250 Finger Drops
(Except 450XL) 1.1248 .0002 Tight thru
(Dry)
450XL 1.1241 Tight
(ALL) 1.1238 .0003 .0007 None
.0012
Pin Dia. ALL 1.1250 +.0000 See Above .0005”
-.0002 Pin Bore
3 Connecting Rod 1.1257 .0004
Pin Bushing (I.D.) ALL 1.1254 .0003 to .001”
.0009
8 Rings, Piston Meas.
End Gap .013/.025 .012 In .025”
Compression 4.500 Bore
Oil (Solid) .013/.023 .010 .025”
Oil (Flex)
Oil (Rails) ALL
Fit in Groove Meas.
Compression .002/,004 .002 In
Oil (Solid) .0015/,004 .0025 Piston .002
Oil (Flex) Groove
With Rails
9 Suction Valve
Thickness ALL .061” ±.003” None None
6 Cylinder .036” None
Valve Seat ALL To .010” None (Lapped
Height .026” Flat to
Seat)
To Top of Liner .134” .002” None None
To (Lapped
.132” Flat to
Seat)
Piston Top to Bottom .035” .023” .012” Must be
Of Safety Head ALL .012” Measured.
Minimum
.010”
* Dimension does not apply to assembled 450XL piston on connecting rod (piston shrink fit to wrist pin).