Technical Information · issue 18 of 2004
Crankshaft
Model MS 270, MS 270 C Chainsaws – Series 1133
IssueTI 18/2004
Engine family 1133
Full text
Page 1 of 2
STIH)
Technical Information 18.2004
Model MS 270, MS 270 C Chainsaws – Series 1133
Crankshaft
The displacement of all versions of the MS 270 will Identification
be increased from 3.02 cu.in. (49.57 cc) to
The crankshaft can be identified with the aid of the
3.05 cu.in. (50.03 cc) from serial number
number marked on the connecting rod.
2 62 611 472 .
The crankshaft throw has been increased and the
distance between the centers of the connecting rod
ends reduced.
Parts Availability
The part number of the crankshaft remains
unchanged.
The change in the stroke specification is relatively
minor and no changes to the piston, cylinder or
crankcase are necessary in this regard.
Previous crankshaft: 1123
New crankshaft: 1133/0
TI_18_2004_30_01_01.fm englisch / English USA
)m~ge 2 Technical Information 18.2004
Service Note
If the crankshaft has to be replaced, make sure the
new crankshaft marked 1133/0 is installed in
machines from Serial # 2 62 611 472.
The new crankshaft marked 1133/0 can also be
installed in older machines (up to Serial #
2 62 611 471).
Summary
Item Part Name Previous New Remarks
1 Crankshaft 1133 030 0401 1133 030 0401 1)
Modification to be introduced from Serial # 2 62 611 472
Remarks
1) Only modified version of part is available from the factory
Last Technical Information on models MS 270, MS 270 C: 35.2003
© ANDREAS STIHL AG & Co. KG, 2004 Technical Documentation
D1/MTK-bl
TI_18_2004_30_01_01.fm Page 2 of 2
Extracted from the manufacturer's 2012 service catalogue. Most of these PDFs embed fonts with a shifted character map, so the text above was recovered rather than copied — read it as a faithful but imperfect transcription, and treat the page image above each block as the authority where the two disagree — the figures exist only there, because they are vector drawings that text extraction cannot keep.