Vortech 1992-1996 5.7L LT1 Corvette User Manual

Page 13

3. HARMONIC BALANCER

A. Be sure that both of the mating surfaces of the crank and

balancer are clean and free from rust and dirt.

B. Slide the new harmonic balancer onto the crankshaft hub.
C. Rotate the balancer on the crankshaft to find the proper bolt

hole alignment. Use the supplied 7/16" x 1-3/4" bolts with
Loctite

and start all three bolts; then torque to 60 ft./lbs.

5. OIL DRAIN FITTING

A. To provide an oil drain for the super-

charger, it is necessary to make a hole in
the oil pan. It is best to punch the pan
rather than drill. Remove paint around
the hole area so that it does not flake into
the pan.

B. Make a mark on the driver's side of the oil

pan ahead of the oil filter. The mark must
be 2-3/4" below the oil pan mounting flange
and rearward of the fifth bolt (from the
front) 3/4".

4. OIL FEED LINE

A. The supercharger uses engine oil for lubrication and must

have an oil feed line connected to a filtered oil access on the
engine and an oil return. The return is a gravity drain and
must have a gradual drop connecting to the oil pan and
away from suspension components or exhaust pipes.

ENGINE BLOCK

OIL
SENDING
UNIT

#4 FLARE

PASSENGER
SIDE

1/8" NPT

STREET

TEE

WARNING: The oil system contains a small
orifice that is easily plugged. DO NOT use
any type sealant on any of the threads.
Instead, use clean engine oil. Disassemble
and blow out entire line if you have any
doubts.

B. Remove the factory oil pressure sending unit located at the

rear of the intake manifold with a 1-3/16" crow's foot tool
(1994-1995 models need a 1-1/16" crow's foot tool).

C. Install the supplied 1/8" NPT street tee pointing to the right

side of the vehicle. (Refer to the graphic at right.)

D. Install the oil sending unit into the top of the tee.
E. Install the straight #4 flare into the remaining branch in the

tee, pointing toward the right side.

F. Install the black oil feed line onto the #4 flare. Cover the end

of the oil feed line to protect it from dirt and place it on top of
the manifold for later connection.

5TH BOLT FROM
THE FRONT

3/4"

2-3/4"