Technical Information · issue 44 of 2000
Cylinder with Piston; Muffler with Catalytic Conve
Model 044, 046 Chainsaws - Series 1128
IssueTI 44/2000
Engine family 1128
Part changes (1)
| Was | Becomes | What the bulletin says |
|---|---|---|
| 1128 120 3404 | 1128 120 3406 | The engine power of models 044 and 046 has been The previous filter base 1128 120 3404 has been increased by optimizing the cylinder, piston and filter replaced by version 1128 120 3406. |
Full text
Page 1 of 2
Technical Information
44.2000
Model 044, 046 Chainsaws - Series 1128
1. Uprated Engine 1.3 046 only: Filter base
The engine power of models 044 and 046 has been The previous filter base 1128 120 3404 has been
increased by optimizing the cylinder, piston and filter replaced by version 1128 120 3406.
base.
Uprated to
044 5.4 HP (4.0 kW)
046 6.0 HP (4.5 kW)
1.1 Cylinder
Intake port has been widened.
1.2 Piston
145TI051 SC
1 2
1 = previous filter base
a 2 = new version
Additional openings (arrow) have been made in the
filter base to increase intake air flow.
a
145TI050 KN
The position of the piston ring locating pins has
been changed to suit the wider cylinder intake port.
The angular position of the locating pins cannot be
measured with normal repair shop equipment.
Reliable identification of the parts is only possible
with the aid of the part number on the packaging.
Service note
The new piston may be installed with the previous
and new versions of the cylinder.
The previous piston may be installed only in the
previous version of the cylinder.
TI_44_2000_30_02.fm english / USA
)m~ge 2 Technical Information 44.2000
2. Summary
Item. Part Name Previous New Remarks
044
1 Cylinder with piston; 1128 020 1213 1128 020 1226 1)
including item 2
2 Piston 1128 030 2001 1128 030 2015 1)
046
3 Cylinder with piston; 1128 020 1217 1128 020 1221 1)
including item 4
4 Piston 1128 030 2004 1128 030 2009 1)
5 Filter base 1128 120 3404 1128 120 3406 1)
Modification to be introduced: on 044 flush handle version from serial number 1 48 533 494
on 044 wrap handle version from serial number 1 48 532 794
on 046 flush handle version from serial number 1 46 085 314
on 046 wrap handle version from serial number 1 46 086 124
Remarks
1) Previous version of part no longer available from factory
Last Technical Information on models 044, 046: 11.2000
© 2000 Andreas Stihl AG & Co. Technical Documentation
Waiblingen D1/MTK-st 7033
TI_44_2000_30_02.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.