P/N: 4PFX020-010
©2004 Paxton Automotive Corp.
All Rights Reserved, Intl. Copr. Secured
28JUL04 v1.2(Univ.SBF Carb-4PFX v1.2)
Section 4
OIL DRAIN INSTALLATION
4.1 OIL DRAIN INSTALLATION
A. To provide an oil drain for the supercharger, it
is necessary to make a hole in the oil pan.
Locate and mark the hole location. (See Fig.
4-a or 4-b, depending on which side of the
engine the supercharger is mounted on). It is
best to punch the hole rather than drill.
Fig. 4-a
Passenger side oil drain
Fig. 4-b
Driver side oil drain
*** NOTE ***
Removal of the oil pan may ease oil drain fitting
installation on some applications.
B. Remove any paint from around the hole area.
C. Use a small center punch to perforate the pan
and expand the hole, switch to a larger diam-
eter punch and expand the hole further to
approximately Ø9/16". Most punches are
made from hexagon material and may be
placed in a socket with an extension to make
this procedure easier. Use caution so that the
hole is not enlarged too much and that the
punch does NOT contact the engine internals.
D. Tap the hole with a 3/8" NPT tap approxi-
mately 1/4” deep. Pack the flutes of the tap
with heavy grease to hold the chips. Use a
small magnet to check for any stray chips.
*** NOTE ***
This method of rolling over the lip of the hole and
tapping works very well if carefully done and
should cause no problems.
E. Thoroughly clean the threaded area. Apply a
small amount of silicone sealer to the new
threads. Apply more sealer to the supplied 3/
8" NPT x 1/2" barb, and secure in the previ-
ously threaded hole. Make sure a seal is
formed all around the fitting.
F. Drain the engine oil, install a new filter and
refill with fresh oil.
4-1
2" FROM BOTTOM OF OIL PAN RAIL
3/4" MAX. (PUNCH HOLE AS FAR FORWARD AS POSSIBLE)
PUNCH HOLE THROUGH
3/4"
1"
1"
PUNCH HOLE THROUGH
