Kohler K91 Service Manual page 129

Figure 1 2-36. I nsta l l i n g Pistons.
3. Orient the notch (on Style
symbol (Style " 0 " piston) and match marks
o n connecting rod towards the flywheel end of
crankshaft . Gently push the piston/connecting
rod i nto bore - do not pound on pisto n .
4 .
Lubricate t h e crankshaft a n d connecting rod
iournal surfaces with engine oil . I nstall the con­
necting rod ca p - make sure the match marks
a re aligned and the oil hole is towards the
camshaft . It is i mportant that marks on con­
necting rod and cap line up and face flywheel
end of engine. Refer to Fig ure 1 2-37.
Engine Model
K9 l
K 1 61
K 1 8 1
K 1 8 1
K24 1 , K30 1 , K32 1 . K34 1
K24 1 , K30 1 , K32 1 , K34 1
I NSTALL OIL PAN
1 . I n stall the gasket . oil pan , and oil d rain plug .
1 2 . 1 2
C" piston) or Fly
I I
Connecting Rod
All
All
Posi-Lock
Capscrew
Posi-Lock
Capscrew
Oil Hole
Figure 1 2-37. I nstalling Con necting Rod Cap .
Torque t h e capscrew t o 20% over t h e nominal
5 .
torque value listed below . Loosen cap screws
to below the nominal value--do not l eave
overtorqued . Retorque bolts to the nominal
torque val u e .
NOTE : T o prevent damage to connecting r o d a n d
engine, do n o t overtorque-Ioosen-and retorque
the hex n uts o n Posi-Lock connecting rod s .
Torque n u t s , i n i ncrement s . directly to the speci­
fied value.
6 . Rotate t h e crankshaft until t h e piston is a t top
dead center in bore to protect the dipper on
the connecti ng rod . If locking tabs are used ,
bend tabs to lock ca p screws .
New Service Rod Used / Reinstalled Rod
1 40 i n . l b .
200 i n . l b .
1 40 i n . l b .
200 in . l b .
2 60 i n . l b .
285 i n . l b .
Torque screws a n d o i l drain p l u g as specified
i n " Genera l Information . "
1 40 i n . l b .
2 0 0 i n . l b .
1 00 i n . l b .
200 i n . l b .
200 i n . l b .
285 i n . l b .