Vortech 1993-1996 5.2L Grand Cherokee User Manual
Page 7
2. OIL DRAIN
A. To provide an oil drain for the supercharger, it is necessary
to make a hole in the oil pan. The best way to provide this
hole is to punch the hole rather than drill.
B. Rotate the engine until the mark on the damper is aligned
with the TDC (top dead center) tag on the front of the
engine. To aid you in this, remove the distributor cap and
watch the ignition rotor. It should end up between #5 and
#7 electrodes as shown in the graphic.
C. Locate and mark hole per diagram. Remove paint around
the hole area. Layout the hole center per the diagram.
D. Use a small center punch to perforate the pan and expand
the hole. Switch to a larger diameter punch and expand the
hole further to approximately 9/16" diameter. Most punches
are made from hexagon material and may be placed in a
socket with an extension to make this procedure easier.
E. Tap the hole with a 3/8" NPT tap
approximately 1/4" deep. Pack the flutes of
the tap with heavy grease to hold chips.
Use a small magnet to check for any stray
chips.
1. PREPARATION/REMOVAL
A. Disconnect the battery, remove the battery box and battery
tray. Set aside. Separate the vacuum canister from the
bottom of the tray.
B. Remove the accessory drive belt.
C. Remove the belt tensioner assembly, separate it from the
mounting bracket and set aside.
D. Disconnect and remove the crankcase breather hose.
E. Remove the entire air filter/inlet assembly.
F. Remove the windshield washer reservoir and set aside.
G. Remove the ignition coil and bracket. Set aside.
H. Remove the front skid plate, if equipped.
NOTE: This method of rolling over
the lip of the hole and tapping it
works very well if carefully done and
should cause no problems.
TDC
IGN. ROTOR
1
ROTATE ENGINE TO
DISPLAYED POSITION
NOTE: Use extreme caution not to hit
the crankshaft while punching the
pan. If a clearance problem exists,
rotate the crankshaft until clearance
is obtained.
OIL PAN
PUNCH HOLE THROUGH
DOWN
1-3/4"
2"