Vortech 2009-2010 5.7L Hemi Cars (Charger, Challenger, 300C) User Manual
Page 17
P/N: 4CL020-015 v1.0, 12/02/2014
©2014 Vortech Engineering, Inc
All Rights Reserved, Intl. Copr. Secured
3
3.
HARMONIC DAMPER DOWEL PIN INSTALLATION
A. Remove the crankshaft damper bolt. (A fac-
tory tool may be used to keep the engine from
rotating or carefully use a pry tool to keep the
damper from rotating.)
B. Install the supplied drill guide with the raised
section piloting in the damper bore. Secure
in place by installing the supplied socket head
cap screw. Do not over-tighten the screw as it
may distort the drill guide (its purpose is just to
hold the guide in place while drilling). See Fig.
3-a.
C. Using a small drill motor (right angle pneumatic
works well), mark a 1/4” drill bit with electrical
tape or a drill stop so that the hole will be deep
enough for the supplied 1/2” long dowel pin.
See Fig. 3-b.
D. Drill hole in damper/crankshaft.
E. Remove the socket head cap screw.
F. Clean area of metal chips and install the supplied
dowel pin in the drilled hole making sure that it
does not protrude past the damper face.
G. Install and tighten the crankshaft damper bolt
to 129 ft-lbs (176 Nm).
H. Re-install the radiator fans and verify that the
electrical connector is plugged in.
Fig. 3-a
Fig. 3-b
NOTE: The purpose of this section is to provide ac-
cess to the harmonic damper bolt area so that
the crankshaft can be pinned to the damper
to prevent the damper from spinning on the
crankshaft. The following steps will work on
all or most applications. If it is not possible
to get adequate clearance by performing the
following steps, follow the manufacturer’s
steps for removing the harmonic damper until
there is sufficient room to work in.
1” MINIMUM