advance product service informationwordpress.as.edu.au/jparker/files/2013/05/83100-specs.pdf ·...
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BRIGGS & STRATTON CORPORATION
SUBJECT:No:
DATE:
MODELS:
Page 1 of 10 Copyright Briggs & Stratton Corp.
NEW 550 SERIES OHV ENGINE
69
7/21/10
550 SERIES (MODEL 083100) HORIZONTAL SHAFT OHV ENGINE
Briggs & Stratton recently introduced the 550 Series horizontal shaft engine. The following lists some of the fea-tures of this engine.
This APSI provides basic servicing information in advance of the repair manual currently in development. See the Illustrated Parts List for service part numbers. The speci! cations, part numbers, and/or procedures provided are PRELIMINARY and subject to change.
ADVANCE PRODUCT SERVICE INFORMATION
Pleated paper air ! lter element• Gear reduction option• Carburetor has an integral fuel shutoff valve• Metal fuel tank with 2 Liter (.5 gallon) capacity•
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Model 083100 MetricArmature Air Gap .15-.25 mmBore 62 mmCrankshaft End Play .05 - .33 mmDisplacment 127 ccExhaust Valve Clearance .13-.18 mmIntake Valve Clearance .13-.18 mmOil Capacity .54-.59 LSpark Plug Gap .76 mmSpark Plug Torque 20 NmStroke 42 mm
Common Speci! cations
2.56˝(65.1)
2.56˝(65.1)
12.60˝(320)
4.17˝(106)
1.18˝(30)
3.78˝(96)
3.46˝(88)
2.6˝(66)
1.40˝(35.7)
5x .312-24UNF 2B, 15 deep
5.49˝(139.5)
9.0˝(232)
4.53˝(115)
2 - .35˝ (9)
2 - .35 x .55˝(slot) (9 x 14)
3.15˝(80).2˝
(5)
3.95˝(100)
.41˝(10.5)
6.38˝(162)
7.32˝(186)
1.36˝(12)
Dimensions
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Cylinder and Crankcase Cover Assembly
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Cylinder Head, Rocker Cover and Gear Reduction Assembly
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Muffler and Air Cleaner Assemblies
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Blower Housing, Flywheel, and Ignition Assemblies
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Description SAE MetricAir Cleaner Base / Backplate 100 lb-in 11 Nm
Armature 100 lb-in 11 NmBlower Housing 100 lb-in 11 Nm
Carburetor Bowl Nut 70 lb-in 8 NmCarburetor Drain Screw 70 lb-in 8 Nm
Carburetor Nut 100 lb-in 11 NmCasing Clamp 20 lb-in 2 Nm
Connecting Rod 135 lb-in 15 NmControl Bracket 100 lb-in 11 Nm
Crankcase Cover 100 lb-in 11 NmCylinder Head 260 lb-in 29 NmCylinder Shield 100 lb-in 11NmFlywheel Guard 100 lb-in 11 Nm
Flywheel Nut 55 lb-in 75 NmFuel Tank 100 lb-in 11 Nm
Governor Lever Nut 100 lb-in 11 NmMuffler 240 lb-in 27 Nm
Muffler Guard 80 lb-in 9 NmOil Drain Plug 240 lb-in 27 NmRewind Starter 80 lb-in 9 Nm
Rocker Arm Stud 240 lb-in 27 NmRocker Ball Setscrew or Nut 100 lb-in 11 Nm
Spark Plug 240 lb-in 27 NmValve Cover 100 lb-in 11 Nm
Fastener Torque Specs
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Description Standard Dims. Reject Dims.
Cylinder
Mag Bearing Ball Bearing N/A
Bore out-of round N/A .04 mm
Cam Bearing 14.00 mm 14.08 mm
Cylinder Head
Intake and Exhaust
Valve Guide 5.50 mm 5.58 mm
Valve Stem Diameter 5.48 mm 5.40 mm
Crankcase Cover / Sump
PTO Bearing Ball Bearing N/A
Cam Bearing 14.00 mm 14.08 mm
Crankshaft
Crankpin Journal 25.98 mm 25.92 mm
Mag Journal 21.98 mm 21.92 mm
PTO Journal 21.98 mm 21.92 mm
Cam Shaft
Mag Journal 13.98 mm 13.92 mm
PTO Side Journal 13.98 mm 13.92 mm
Connecting Rod
Crankpin Bearing 26.02 mm 26.07 mm
Piston Pin Bearing 13.02 mm 13.05 mm
Piston Pin
Diameter 13 mm 12.97 mm
Piston / Rings
Pin Bore 13.02 mm 13.05 mm
Ring End Gap - Top .23 mm .76 mm
Ring End Gap - Middle .23 mm .76 mm
Ring End Gap - Oil .46 mm .76 mm
Ring Land Clearance- Top .05 mm .10 mm
Ring Land Clearance - Middle .05 mm .10 mm
Ring Land Clearance - Oil .10 mm .15 mm
Starter Rope
Rope Diameter #4 White, (3.18 mm) N/A
Rope Length 178 cm N/A
Standard and Reject Dimensions
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