Simplicity SHEET, INSTRUCTION SHORT BLOCK IPL Instruction

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BRIGGS & STRATTON CORPORATION
Illustrated Parts List
21
17A
12
HORIZONTAL CRANKSHAFT
SHORT BLOCK ASSEMBLIES
METRIC
19
794905
794906
794907
796725
20
718A
17
22
794908
794909
794910
For use on Engine Model Series
21
200000
552
718
15
332
16
219
404
51A
615
741
742
45
146
614
746
220
37
51
616
46
883
883A
176
25
455
868
26
1022
163
TO INSTALLER: GIVE THIS PARTS LIST TO CUSTOMER AFTER SHORT BLOCK INSTALLATION.
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12
15
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17A
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PART
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REF.
NO.
THIS IPL IS SPECIFIC TO THE SHORT BLOCK(S)
LISTED. RETAIN FOR FUTURE PARTS REFERENCE.
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A. For all parts shown in the illustrated view to the left,
use this Parts List.
B. For all other parts, refer to the Illustrated Parts List
which is appropriate for your engine by Model, Type
and Code (Serial) Number.
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INSTRUCTIONS
To obtain the correct part numbers for an engine which
has been rebuilt with a Short Block Assembly, follow these
instructions:
DESCRIPTION
794851 Cylinder Assembly
698340 Kit−Bushing/Seal
(Magneto Side)
391086S Seal−Oil
(Magneto Side)
694872 Gasket−Cylinder Head
694953 Gasket−Crankcase
691686 Plug−Oil Drain
794716 Crankshaft
Used on 794906
794721 Crankshaft
Used on 794908
794718 Crankshaft
Used on 794907
794717 Crankshaft
Used on 794905
794719 Crankshaft
Used on 794909
794720 Crankshaft
Used on 794910
795079 Crankshaft
Used on 796725
695434 Bearing−Ball
691069 Bearing−Ball
© Briggs & Stratton Corporation
REF.
NO.
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PART
NO.
DESCRIPTION
696914 Cover−Crankcase
Used on 794908
791965 Cover−Crankcase
Used on 794906, 794907,
796910, 796725
793584 Cover−
Crankcase Used on
794905, 794909
698340 Kit−Bushing/Seal
(PTO Side)
391086S Seal−Oil
(PTO Side)
281658S Cap−Oil Fill
794825 Screw
(Crankcase Cover/Sump)
792117 Piston Assembly
(Standard)
792144 Piston Assembly
(.020” Oversize)
792026 Ring Set
(Standard)
792073 Ring Set
(.020” Oversize)
690975 Lock−Piston Pin
696581 Pin−Piston
694691 Rod−Connecting
694692 Dipper−Connecting Rod
690976 Screw
(Connecting Rod)
REF.
NO.
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45
46
51
51A
146
163
176
219
220
332
404
455
552
614
615
616
718
718A
742
746
868
883
883A
1022
PART
NO.
795715
690977
795697
694874
694875
690979
692277
691876
DESCRIPTION
Guard−Flywheel
Tappet−Valve
Camshaft
Gasket−Intake
Gasket−Intake
Key−Timing
Gasket−Air Cleaner
Seal−O Ring
(Air Cleaner Base)
693578 Gear−Governor
691724 Washer
(Governor Gear)
794824 Nut (Flywheel)
795759 Washer
(Governor Crank)
794867 Cup−Flywheel
694674 Bushing−Governor Crank
691620 Pin−Cotter
694676 Retainer−Governor Shaft
795758 Crank−Governor
690959 Pin−Locating
695178 Pin−Locating
(Head)
692564 Retainer−E Ring
694679 Gear−Idler
690968 Seal−Valve
710250 Gasket−Exhaust
794818 Gasket−Exhaust
690971 Gasket−Rocker Cover
FORM MS4160 (REV A)
REPLACES FORM MS 4160 (REV −)
SHORT BLOCK ASSEMBLY INSTRUCTIONS
IMPORTANT
This replacement short block and all engines manufactured after 7/16/07 are manufactured with metric threads.
All the necessary metric fasteners are included with this short block. When replacing the short block on an engine
manufactured after 7/16/07, transfer original fasteners.
When replacing the short block on an engine manufactured before 7/15/07, discard all of the original fasteners except:
Valve cover screws (4).
Fuel tank mounting screws (4).
Muffler and muffler guard screws (if equipped).
Flywheel fan mounting screws (2).
Note: There may be fasteners left over (not used) depending on the type of exhaust system, starter or other
engine options.
GENERAL INFORMATION
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To use a Short Block, ignition, carburetion and starter parts are transferred from the old engine to a short block
assembly. This reduces repair time and provides an engine with all new internal parts assembled to new engine
production standards.
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All parts being transferred should be thoroughly cleaned of dirt, oil and grease, and carefully inspected to be sure
that all parts are suitable for additional service. Additional engine parts necessary for the repair of the old engine
should be supplied from parts stock.
Any new parts that are required should be ordered from the parts list covering the original engine model − type −
code number. In some instances the internal parts in the Short Block differ from those used in the original engine.
Therefore, to identify the rebuilt engine for future parts requirements, a metallic self-adhesive label is supplied in an
envelope with each Short Block. The label bears a symbol (example V-1) and should be attached to the engine
adjacent to the model, type and code numbers that are stamped on the engine identification nameplate. At any time
repair parts are ordered, add the symbol to the original type number (example 0134 V110). This will permit
identification of the proper parts in the Short Block.
To apply the symbol label, first thoroughly clean the area in which it will be applied using petroleum solvent. Carefully
peel the backing from the label by starting at one corner. Apply label evenly in position, using finger pressure to
smooth out the surface of the label.
SPECIAL INSTRUCTIONS
LUBRICATE UPPER CYLINDER:
Before installing the cylinder head, move piston near top of cylinder bore. Place 2 tablespoons of clean engine oil
around outer diameter of piston. Crank slowly to spread the oil. This will protect the upper surfaces of the piston and
cylinder bore during the first few moments of operation.
WARNING: BEFORE STARTING OR RUNNING ENGINE, STATIC ADJUSTMENT OF THE GOVERNOR
MUST BE MADE. FAILURE TO MAKE STATIC ADJUSTMENT COULD RESULT IN ENGINE OVERSPEEDING
WHICH MAY RESULT IN ENGINE OR EQUIPMENT DAMAGE CAUSING PERSONAL INJURY OR PROPERTY
DAMAGE.
ALWAYS REFER TO THE APPROPRIATE BRIGGS & STRATTON REPAIR MANUAL FOR PROPER STATIC
GOVERNOR ADJUSTMENTS.
BRIGGS & STRATTON CORP.
Milwaukee, Wisconsin 53201

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