Tecumseh HSK840, Technician'S Handbook

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32
ENGINE SPECIFICATIONS
TVS840 TVXL840 HSK/HXL840-850
INCHES INCHES INCHES
BORE 2.437 in. 2.437 in. 2.437 in.
2.438 in. 2.438 in. 2.438 in.
(61.9 mm) (61.9 mm) (61.9 mm)
STROKE 1.812 1.812 1.812
(46 mm) (46 mm) (46 mm)
CUBIC INCH DISPLACEMENT 8.46 8.46 8.46
(139 cc) (139 cc) (139 cc)
SPARK PLUG GAP .030 .030 .030
(.76 mm) (.76 mm) (.76 mm)
PISTON RING END GAP .007 .18 mm .007 .18 mm .007 .18 mm
.017 .43 mm .017 .43 mm .017 .43 mm
PISTON DIAMETER 2.4320 61.77 mm 2.4320 61.77 mm 2.4320 61.77 mm
2.4326 61.79 mm 2.4326 61.79 mm 2.4326 61.79 mm
TOP .0645 1.64 mm Half Half
.0655 1.66 mm Keystone Keystone
Ring Ring
PISTON RING GROOVE WIDTH
BOTTOM .0645 1.64 mm .0645 1.64 mm .0645 1.64 mm
.0655 1.66 mm .0655 1.66 mm .0655 1.66 mm
TOP .0615 1.56 mm Half Half
.0625 1.59 mm Keystone Keystone
Ring Ring
PISTON RING WIDTH
BOTTOM .0615 1.56 mm .0615 1.56 mm .0615 1.56 mm
.0625 1.59 mm .0625 1.59 mm .0625 1.59 mm
CRANK PIN JOURNAL DIAMETER .9710 24.98 mm .9710 24.66 mm .9710 24.66 mm
.9715 24.68 mm .9715 24.68 mm .9715 24.68 mm
CRANKSHAFT P.T.O. SIDE .9833 24.98 mm .9833 24.98 mm .9833 24.98 mm
MAIN BEARING DIAMETER .9838 24.99 mm .9838 24.99 mm .9838 24.99 mm
CRANKSHAFT MAGNETO SIDE .7864 19.98 mm .7864 19.98 mm .7864 19.98 mm
MAIN BEARING DIAMETER .7869 19.99 mm .7869 19.99 mm .7869 19.99 mm
CRANKSHAFT END PLAY .0004 .01 mm .0004 .01 mm .0004 .01 mm
.0244 .62 mm .0244 .62 mm .0244 .62 mm
NOTE: SPECTIFICATIONS ARE IN INCHES
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For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983