Section 04
ENGINE
Subsection 06
(BOTTOM END)
04-06-18
SMR2000-011_04_06A.FM
Counterbalance Shaft
787 RFI Engine
Press gear
no. 14
onto counterbalance shaft
no. 13
taking care to align both marks previously traced.
CAUTION:
Counterbalance shaft must be prop-
erly assembled, otherwise engine will vibrate
and premature wear will occur.
Proceed as follows to check if the gear
no. 14
is
properly positioned on the counterbalance shaft:
– Temporarily install the counterbalance shaft in
the crankcase.
– Rotate the counterbalance shaft to align the
notch of the gear with the crankcase.
1. Gear notch aligned with the crankcase
– The notch of the couterweight on the opposite
end of the counterbalance shaft must also be
aligned with the cranckcase.
1. Counterweight notch aligned with the crankcase
If notches are not aligned with the crankcase, re-
move the gear and repeat the procedure until the
notches are properly aligned.
947 Engine
Install bearing
no. 31
and washer
no. 32
.
When installing seals
no. 17
, apply a light coat of
Molykote 111 on seal lips.
Prior to installation, place bearings
no. 15
into a
container filled with oil, previously heated to 75°C
(167°F). This will expand bearings and ease their
installation.
Reinstall counterweights
no. 16
using a press and
take care to align index marks previously traced.
Crankshaft and Counterbalance Shaft
787 RFI and 947 Engines
Install crankshaft
no. 3
first in crankcase.
After crankshaft installation, install counterbal-
ance shaft
no. 13
. Make sure to properly index
crankshaft and counterbalance shaft by aligning
marks of gears.
CAUTION:
Marks on the crankshaft and coun-
terbalance shaft must be aligned, otherwise
engine will vibrate and premature wear will oc-
cur.
787 RFI ENGINE
1. Marks must be aligned
F00D0UA
1
F00D0VA
1
F00D0PA
1
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Содержание 2001 GS
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