Section 2. Connecting Rods - Tecumseh HH100 Handbook

When reinstalling a used connecting rod ALWAYS
use new nuts on the bolts. These locking nuts will
ensure that the torque will be retained when the
connecting rod is replaced.
The connecting rod must be installed with the match
mark facing out of the cylinder, toward the P.T.O.
end of the crankshaft. This will ensure the correct
positioning of the oil dipper. Install as illustrated.
The heads of the through bolts must be seated tight
against the machined shoulder on the connecting
rod. Failure to check this may result in a false torque
reading and premature failure.
IMPORTANT Torque to correct specifications. 110
inch pounds (12.43 Nm).
NOTE Before installing, clean the connecting rod
bearing surfaces with a clean cloth. Rods are coated
with lead which will slightly oxidize in storage, this
oxidation must be removed.
FOR ENGINE MODELS HH80, HH100 and HH120
and VALVE-IN-HEAD ENGINES.
OIL VAPOR
PICK-UP
HOLE
SPECIFICATION SECTION
FOR BEARING SIZE AND NUT
TORQUE
The vertical crankshaft 8 and 10 H.P. engines have
a connecting rod with two lube holes. This rod is
not interchangeable with the horizontal connecting
rod. The above requirements listed for a horizontal
crankshaft rod also apply to the vertical crankshaft
engines connecting rod.

SECTION 2. CONNECTING RODS

SLIP FIT
WRIST PIN
THROUGH
BOLT
INSTALL WITH MATCH
MARK FACING OUT AND
OIL DIPPER AS SHOWN
FOR ENGINE MODELS VH80 and VH100
ENGINE ROTATION
OIL VAPOR
PICK-UP HOLE
Torque to correct specifications 110-inch pounds (12.43
Nm). After initial torque use a drift and a hammer
(13 oz.) (390 ml) and strike the rod bearing cap above
each lock nut. This will seat the cap releasing some
torque on the lock nuts. Retorque lock nuts to
specifications.
OIL FEED HOLE
35