Cylinder Block, Liners, Pistons and Rods
Earlier engines have the traditional tongue-and-groove
between the connecting rod and cap (A). Later engines
have the Precision JointTM rod and cap (B).
To create the Precision JointTM, the connecting rod is
notched with a laser beam. Then a precision mandrel in
the rod bore is powered to separate the cap from the rod
at the joints (C).
Both types of rods provide a strong joint and torque on
cap screws is the same. Removal and installation is
similar, with differences noted. See INSPECT ROD AND
CAP and INSTALL PISTON AND CONNECTING ROD
later in this Group.
A--Tongue-and-Groove Rod (Early Engines)
B--Precision JointTM Rod (Later Engines)
C--Precision JointTM Details
Precision Joint is a trademark of Deere & Company