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Home > Support > Repair Specifications
Engine Model 
Documents and Manuals
Air Cleaner Parts Automatic Choke Parts
Belt Generators, Mounting Drives Carburetors
Clutch Assemblies Drawing Specs (V465D)
Fuel Pumps Fuel Tank Parts
Governors Ignition Parts
Manifolds Miscellanious Parts
Muffler Parts Recoil, Screen, Conversion Kit Parts
Reduction Clutch Parts Repair Specifications (all)
Repair (V465D, V460D, V461D) Sales Brochure (V465D)
Special Tools Starting Motor Parts
Repair Specifications
Standard Cyclinder Bore3.749 - 3.748
Piston Skirt to Bore Clearance.0025 - .003 Cam Ground
Crankpin Diameter2.1233 - 2.1238
Connecting Rod to Crankpin Clearance.0005 - .0018 Shell Bearing to Crankpin Clearance (Vertical)
Center BRG Shell .0013 - .0038
Valve Tappet Clearance - Cold/Inlet.008
Valve Tappet Clearance - Cold/Exhaust.014
Bolt Torque Specifications(FT. LBS.)
Connecting Rod28 - 32
Cylinder Block/Center Main to C.CaseCenter BRG Hanger 74 - 76 Cap 32 - 35
Engines built prior to serial No.6089642 Center BRG Torque is 60 Ft-Lbs
Cylinder HeadAlternate in 3 steps 8-10/18-20/27-30
Engine Base8 - 11
Gear Cover16 - 18
ManifoldUpper/Lower 13-15 to Cyl. Head 23-25
Main Bearing Plate28 - 32
Spark Plug20 - 22
Flywheel95 - 110
Rope SheaveNone
Additional Specifications(FT. LBS.)
Crankcase Old Capacity6 QTS
OIL FILTER 1 QT (Additional oil when replacing filter)
Running Spark Advance23 Degrees
Maximum Engine Operating R.P.M.3000
Emission CertifiedFalse
Maintenance Specs
1.  Every 4 to 8 hours check air cleaner and clean or replace.
2.  Every 8 hours check crankcase oil level.
3.  Every 50 drain crankcase and refill with fresh oil.
4.  For gasoline engines use only regular grade gasoline(87 Octane Min.)
Crankcase, Crankshaft and Main Bearing Common Specs
1.  Cylinders Worn .005" or more over Standard Size, Rebore, Hone and Fit with Oversize Piston and Rings.
2.  Crankshaft End Play: .002 to .005" (Cold), (W2-1230, W2-1235, W2-1250, .005 to .012)
3.  W2-1230, W2-1235 & W2-1250 Main Bearing Clearance: .002 to .005"-Connecting Rod Side Clearnance .009 - .018" - Piston Ring End Gap .010 to .020.
4.  W4-1770 3rd Bearing Housing to Crankcase Torque 40-45 Foot Pounds.
Piston Common Specs
1.  Piston Pin to Piston: .0000 to .0008" Tight(W2-1230, W2-1235 & W2-1250 = .0005 TO .0008 Loose)
2.  Piston Pin to Connecting Rod: .0005 to .001" (ACN, BKN, S7D, H8D, TR10D, TRA12D = .0002 TO .0008)(W2-1230, W2-1235 & W2-1250 = .0006 TO .0015 Tight)
Ignition Common Specs
1.  Spark Advance Check for Distributor/Ignition Timers: Engine must be running at 2000 RPM or above.
2.  Breaker Point Gap: Distributor = .020", Magneto = .015".
3.  Timing for Models S7D, HS7D, S8D, S10D, S12D, S14D, TR10D AND TRA10D is set by adjusting breaker point gap, preferrably with a continuity light or ohmmeter. For correct procedure see "TIMING" section in repair manuals
4.  Breakerless Ignition (not adjustable): standard on TRA12D, optional on S10D, S12D & S14D.
5.  Spark Plug Gap = .030".
Valves Common Specs
1.  Valve Face and Valve Seat Angle: 45 Degrees
2.  Valve stem to guide clearance: .003 to .005" for all models except: ACN-BKN, V460D, V461D, V465D, VR4D=.002 TO .004". Exhaust only - S7D, HS7D, S8D, HS8D, TR10D, TRA10D, TRA12D = .002 TO .004" (W2-1230 = .003 to .005") Inlet Only - S7D, HS7D, S8D, HS8D, S10D, S12D, S14D, TR10D, TRA10D, TRA12D, W2-1230 = .001 to .003"
3.  When Clearance Becomes .002" Over Hight limit, Replace guides.

Customer Service

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Dyer, Tennessee
Fax: 731-665-6116

Headquarters

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Waukesha, WI
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Thank you for visiting Wisconsin Motors, LLC on the internet. We build gasoline, LP and NG fueled, air-cooled and water-cooled engines. Our product offering ranges from 9hp to 72hp . Our unique product offering, addresses a specific and valuable niche in the market place.