Dodge 2001 Ram 1500 Owner's Manual page 1429

9 - 282 ENGINE 5.9L DIESEL
SOLID LIFTERS/TAPPETS (Continued)
(7) Remove the tappet installation tool from the
tappet.
(8) Re-install a dowel rod and secure the rod with
a rubber band.
(9) Rotate the trough one half turn and repeat the
procedure for the remaining tappets.
(10) Install the camshaft (Refer to 9 - ENGINE/
ENGINE BLOCK/CAMSHAFT & BEARINGS (IN
BLOCK) - INSTALLATION).
Fig. 120 Retrieve Tappet Installation Tool through
Cam Bore
Fig. 121 Insert Tool and Pull Tappet Into Place
PISTON & CONNECTING ROD
DESCRIPTION
The piston (Fig. 123) is constructed of aluminum
and is gravity cast, free floating design. The piston
incorporates a centrally located high swirl combus-
tion bowl, and utilizes a "keystone" style top com-
pression ring (Fig. 124), and a "Tapered Face"
intermediate ring (Fig. 124), for superior cylinder
wall scraping. Piston cooling nozzles cool the piston
Fig. 122 Rotate Trough One Half Turn (180°)
and pin with engine oil supplied by the crankshaft
main journals.
The connecting rods (Fig. 125) are a split angle
design constructed of micro alloy. The rods have a
pressed in place wrist pin bushing which is lubri-
cated by the piston cooling nozzle oil spray.
Fig. 123 Piston
STANDARD PROCEDURE—PISTON GRADING
• When rebuilding an engine with the original cylin-
der block, crankshaft and pistons, make sure the pis-
tons are installed in their original cylinder.
• If replacing the piston(s), make sure the replace-
ment piston(s) are the same grade as the one being
replaced.
BR/BE