Special Notes For Horizontal Crankshaft Splash Lube Engines; Torque Connecting Rods - Briggs & Stratton Twin Cylinder L-Head Repair Manual

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. 7.
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. 8.
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

1. Torque connecting rod screws 190 in. lbs.
(21.5 Nm), Fig. 9.
2. Rotate crankshaft two (2) revolutions to check for
binding.
a. 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, Fig. 9.
4
13
DIPPER NO. 222480 NO. 1 ROD
ENGINES WITH TOP-NO-LOAD SPEED
ABOVE 2400 RPM
Fig. 7 – Dipper Location
NO. 1 ROD-DIPPER NO. 222480
NO. 2 ROD-DIPPER NO. 223053
Fig. 8 – Dipper Location
Fig. 9 – Torque Connecting Rods