Robin America EH63, Service Manual

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5) MAIN BEARING COVER
(1) Put a oil seal guide onto PTO shaft portion to avoid damaging the main bearing cover oil seal.
(2) Place gasket onto the mating surface of crankcase.
(3) Lubricate oil seal lip portion and bearing surfaces, and install main bearing cover.
Tighten bolts evenly to the specified torque.
M8 x 45 Flange bolt : 10 pcs.
6) OIL PUMP and COVER
(1) Apply oil to inner and outer rotors of oil pump
and attach them in position.
(2) Set O-ring in position.
(3) Install oil pump cover with the allow marking
upwards.
M6 x 18 Flange bolt : 4 pcs.
Tightening torque
22.5 - 27.5 N
・
m
(230 - 280 kgf
・
cm)
(16.5 - 20.2 ft
・
lb.)
O-RING
INNER ROTOR
OUTER ROTOR
" "MARKING
OIL PUMP COVER
7) CYLINDER HEAD
(1) Set dowel pins in the holes on the cylinder head surface.
(2) Attach head gaskets in position onto #1 and #2 cylinder
head surfaces.
(3) Install #1 and #2 cylinder heads. Tighten bolts
evenly in steps to the specified torque.
M10 x 65 Flange bolt : 4 pcs.
Tightening torque
41.0 - 49.0 N ・ m
(400 - 500 kgf ・ cm)
(30.2 - 36.1 ft ・ lb.)
NOTE ;
* Before installing main bearing cover, be sure to check the installation of governor lever
shaft and oil pump filter in the crankcase in position.
* Tap cover with a soft hammer until tacthing the crankcase mating surface, engaging with
governor gear and camshaft gear properly.
* Rotate crankshaft slowly to check for smooth operation and side clearance.
NOTE ::
Be sure to check dowel pin, and replace
with new one if damaged.
1
2 3
4
Tighten the cylinder head bolts in diagonal order.
Cylinder
head bolts
M10 x 65 mm
Flange bolt
: 4 pcs.
Tightning Torque
1
st
step Final step 2
nd
step
25 N
・
m
(255 kgf
・
cm)
(18.4 ft
・
lb.)
45 N
・
m
(459 kgf
・
cm)
(33.2 ft
・
lb.)
35 N
・
m
(357 kgf
・
cm)
(25.8 ft
・
lb.)
Tightening torque
6.8 - 8.8 N ・ m
(70 - 90 kgf ・ cm)
(5.1 - 6.5 ft ・ lb.)