Torque Connecting Rods - Briggs & Stratton Twin Cylinder L-Head Repair Manual

NOTE: ENGINE MODELS 462770: With piston
and connecting rod assemblies installed,
make sure the machined relief areas on
the connecting rod and cap are together
and facing cam gear, Fig. 17.
Special Notes For Horizontal Crankshaft
Splash Lube Engines:
Engines with a Top-No-Load Speed
Above 2400 RPM:
Install only one oil dipper on #1 connecting rod, Fig. 18.
Use ONLY dipper part #222480. Engine models
421000 and 422400 manufactured before date code
92072000 were not originally equipped with this
dipper. It is recommended that the oil dipper be
replaced with dipper part # 222480 in all 421400 and
422400 engines at the time of major servicing or
overhaul. When installing dipper part #222480 in these
engines, the oil trough must be removed (if so
equipped).
Engines with a Top-No-Load Speed
Below 2400 RPM:
Engines with a Top-No-Load speed below 2400 RPM
require 2 oil dippers. Install ONLY oil dipper part
#222480 on # 1 connecting rod. Install ONLY dipper
part #223053 on #2 connecting rod, Fig. 19.
NOTE: Engines equipped with Oil Gard use
only one oil dipper part #222480, attached
to #1 connecting rod.
Refer to Service Engine Sales Manual Microfiche,
MS-6225 or the Service Sales Manual, MS-4052 for
Top-No-Load RPM by engine model and type number.

Torque Connecting Rods

Torque connecting rod screws, using torque wrench,
Tool #19197 or #19393, to 190 in. lbs. (21.5 Nm),
Fig. 18 or Fig. 19. Rotate crankshaft two (2) revolu-
tions to check for binding. Connecting rod should also
be free to move sideways on crankpin.
NOTE: Failure to use a torque wrench can result
in loose connecting rods causing break-
age, or tight connecting rods causing
scoring.
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RELIEF AREA
MUST FACE
CAM GEAR
Fig. 17 – Installing Connecting Rods – Model 462770
DIPPER NO. 222480 NO. 1 ROD
ENGINES WITH TOP-NO-LOAD SPEED
ABOVE 2400 RPM
Fig. 18 – Dipper Location
NO. 1 ROD-DIPPER NO. 222480
NO. 2 ROD-DIPPER NO. 223053
ENGINES WITH TOP-NO-LOAD SPEED
BELOW 2400 RPM
Fig. 19 – Dipper Location
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