Stiga WBE170 Workshop Manual

Release 00 - 11/2018
Engine WBE 170
page 55
Workshop Manual
16. ENGINE BLOCK - Overhauling internal parts
9 - Close the carter and x the screws (4) to the
indicated couple [ 16.1].
10 - During assembly perform the operations
indicated in section [ 16.1] always remember
to replace the silicone gasket (6) between the sump
and the casing.
11 - Reassemble the conveyor and the cover.
Tightening torques
4
Union screws under carter and sump 8-12 Nm
14
Counterweight governor xing screw 5-7 Nm
20
Fixing screws lower connecting rod cap 11-13 Nm
Technical information
Oil sump capacity 0,50 litri
Diameter Pump seat on camshaft 13,92 mm
Diameter aspiration cam 27.30 mm
Diameter discharge cam 27,45 mm
Maximum segments gap in the cylinder 1,0 mm
Max. compression ring axial gap 0,15 mm
Minimum gudgeon pin diameter 12,95 mm
Max. gudgeon pin housing diameter
on piston
13,05 mm
Max. connecting rod diameter
gudgeon pin side 13,07 mm
crank side 26,07 mm
Diam. connecting rod’s pin on engine shaft 25,92 mm
Verify the engine shaft extremes 0,10 mm
Minimum inlet valve stem diameter 5,32 mm
Minimum exhaust valve stem diameter 5,27 mm
Valve head margin min. thickness 0,50 mm
Minimum valve spring length 34,50 mm
Special equipment
24 Piston ring removal expander
36 Piston ring compressing tool
4
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Stiga WBE170 Specifications

General

Brand	Stiga
Model	WBE170
Category	Engine
Language	English