ENGINE
M6040, M7040, WSM
1-S71
Replacing Balancer Shaft Bearing
1. Remove the used balancer shaft bearings (1), (2), (3) and (4).
2. Set the new bearing to the balancer shaft bearing replacing
tools. (See page G-55 to G-61.) Confirm that the cut off position
of the bearing (C) matched with the pin of the replacing tool.
3. Install the new bearing from flywheel housing side keeping the
ditch (7) of the replacing tool horizontal.
(The installing order: bearing D (1) → bearing C (2) → bearing
A (4), B (3)
• Be sure to align the oil hole of bearing and crankcase.
Otherwise the balancer shaft may be seized and engine
may get damaged.
• Apply engine oil to the bearing surface.
(Reference)
9Y1210143ENS0113US0
Bearing Code No. Quantity
Bearing A 1G772-26960 1
Bearing B 1G772-26970 1
Bearing C 1G772-26980 2
Bearing D 1G772-26990 2
(1) Bearing D
(for Balancer Shaft 1 and 2)
(2) Bearing C
(for Balancer Shaft 1 and 2)
(3) Bearing B (for Balancer Shaft 2)
(4) Bearing A (for Balancer Shaft 1)
(5) Balancer Shaft 1 Bearing Replacing
Tool (3 kinds of tools available)
(6) Balancer Shaft 2 Bearing Replacing
Tool (3 kinds of tools available)
(7) Ditch
A: Front Cover Side
B: Flywheel Housing Side
C: Cut Off Position of Bearing
D: Oil Hole Position of Bearing
(a) 0.035 rad (2 °)
(b) 0.44 rad (25 °)
(c) 0.72 rad (41 °)
(d) 1.6 rad (90 °)
(e) 0.393 rad (22.5 °)
(f) 1.6 rad (90 °)
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