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CONNECTING ROD SERVICE
Two cycle engines may be equipped with steel or
aluminum connecting rods. Aluminum connecting rods
use steel liners when needle bearings are utilized.
The connecting rod bolts used are Torx
®
, size E6. If
torx sockets are not locally available, they can be
purchased through your Tecumseh parts supplier under
part number 670257.
The connecting rod bolts should be tightened alternately
and torqued to proper specification.
All connecting rods have match marks on the connecting
rod and cap. Make certain these match marks are
aligned when assembling.
NEEDLE BEARINGS. Needle bearings may be single
or split row.
Split needles are to be installed with the blunt ends
together and tapered ends outward.
Service needles are supplied with a coating to hold
the needles together and make installation easier.
Remove the paper backing on the bearings and wrap
uniformly around the crankshaft journal. Pull the
connecting rod onto the crankshaft journal, place a
few drops of oil onto the needle bearings and install
rod cap. Torque bolts to specification.
MATCH MARKS
MATCH MARKS
SINGLE NEEDLE
SPLIT NEEDLE
TAPER
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