1 oil drain line, Oil drain line -1, Oil drain line – Paxton Superchargers GM 8.1 HD Truck/SUV User Manual
Page 27

9-1
P/N: 4809642
©2004 Paxton Automotive
All Rights Reserved, Intl. Copr. Secured
28SEP04(4809642 v1.2)8.1GMTruck
Section 9
OIL DRAIN LINE
A
To provide an oil drain for the supercharger,
it is necessary to make a hole in the oil pan.
Locate and center punch the hole per Fig.
9-a.
B.
Use the supplied 9/16" roto-broach to drill
the hole in the oil pan. Take care to break
through the pan gently and remove the cut
out.
C.
Pack the flutes of a 3/8" NPT tap with
grease. Tap the hole until the fitting can be
started.
D.
Thoroughly clean the threaded area. Reach
inside the oil pan and retrieve any stray
chips. Apply a small amount of sealer to the
threads. Make sure there is a seal formed
around the fitting. Install the 3/8" NPT to
1/2" barb fitting pointing slightly upwards.
E.
Route the oil drain hose from the super-
charger to the barb fitting, attach and secure
with a #8 hose clamp. Trim the hose for best
fit. (See Fig. 9-b.)
***IMPORTANT***
The draining oil is gravity fed so the drain
hose must be routed downhill with no kinks or
dips.
Fig. 9-a
***NOTE***
When drilling and tapping the hole, be carefull
not to damage the windage tray. The tray will
be close when performing the following steps:
Fig. 9-b
9.1
OIL DRAIN LINE
.500
9/16 HOLE
FRONT OF VEHICLE
2.500