Oil drain – Vortech 2003-2005 Lexus 3.0L IS300 User Manual

Page 13

P/N: 4LA020-010

11JUL07 v1.1 Lexus(4LAv1.1)

To provide an oil drain for the supercharger, it
is necessary to make a hole in the intermedi-
ate oil pan.

Locate the factory oil drain boss on the pas-
senger’s side of the engine as shown. (See
Fig. 3-a.

)

Drill a 1/8" pilot hole into the center of the
boss. Using the supplied 9/16" rota-broach
cutter and arbor, carefully machine a through-
hole into the intermediate pan.

Tap the previously machined hole approxi-
mately 1/4" deep using a 3/8"NPT tap. Pack
the flutes of the tap with heavy grease to hold
the chips. Thoroughly clean the threads and
hole with acetone or lacquer thinner.

Using a small amount of silicone sealer,
install the 3/8"NPT x 1/2" barb fitting into the
previously tapped hole. Temporarily cap the
fitting until the drain hose is connected in a
later step. (See Fig. 3-b.)

Drain the engine oil and change the oil filter.

OIL DRAIN

Fig. 3-a

Fig. 3-b

NOTE:

Pack the cutter with heavy grease and
DO NOT stop the drill motor until the
rota-broach has been extracted from the
pan This will help retain the cut out piece
in the cutting tool.

NOTE:

Automatic transmission vehicles only:
It may be necessary to temporarily
remove the transmission cooler lines
(see Fig. 3-a) from their mounting brack-
et to provide a clear path for drilling.

INTERMEDIATE

OIL PAN

OIL DRAIN LOCATION

LOWER

OIL PAN

3/8"NPT x 1/2"

BARB FITTING

INTERMEDIATE

OIL PAN

ENGINE

BLOCK