Generac Power Systems GTV99O User Manual

SECTION 13: ENGINE
ASSEMBLY
Figurc li-5.
tnsta ing
Canshaft
Figurc
t3-4. Toryue Connec.ting
Rods
5. Rotatecrankshafttworevolutionstocheckforbinding.
Rod
should also
be free to movesideways
on crankpin.
Repeat
Steps 1-5 for #2 cylinder.
Note:
The numbef
1 on *t .onnecting rod
and the
number
2 on *2 connecting
rcd must be
facing PTO
side.
lmportant
Failurc to
use a torque wrcnch
.an rcsuh
in
loose
conneding rod
scrcws causing brcakage
ot tight
conneding
fod s.rews
causing saoring,
INSTATT
CAMSHAFT
Lubricate
tappets,
cam shaft
joufnah
and lobes
with
eng ne
o|].
1. Installtappets.
2. Aligntifting
markson
cam shaftand
cfankshaft
gearand
installcam
shaft, Figure 13 5.
3. Atsemble
governor
spool
io
governor
shafi.
a. Make
sure that
spool engages flyweights.
b.Install new
"O'Lring in crankcase.
INSTALL CRANKCASE
COVER
Lubricate PTO
and cam
gear
bearing.
1. Rotate
governor
shaftsothatthe piddle
rests againstthe
cover, Figure
l3-6.
Figute 13-5.
Rotating covehot
Shaft
2. lnstall
crankcase cover
with new
gasket.
Note: fi
the oil
pump
dfive
is not aligned,
the cover
will
not slide
completely on.
Turning the
uankshaft may
align the
oil
pump
drive.
3. Install
governor
suppod bracket.
a. The allen head
crankcase bolt
willneed
to be backed off.
4. Torque
screws in sequenceshownto
47.5 Nm
(35ft.lbs.),
Figure 13 7.
5. Check crankshaft
end
play.
tf
ess than 0.05mm
(.002,,)
there may
be an assembly
probem.
'13-2

Generac Power Systems GTV99O Specifications

General

Brand	Generac Power Systems
Model	GTV99O
Category	Engine
Language	English