Vortech Universal Big Block Carbureted System User Manual

Page 16

P/N: 4GA020-030

08DEC08 V3.0(BBC LowMount(4GA..030 V3.0))

7. SUPERCHARGER DRIvE BElT INSTAllATION

(TWIN PlATE v-7 ONlY, v-4 RACE SKIP TO SECTION 8)

A. Attach the supplied belt tensioner adjustment

screw, tensioner arbor and adjustment screw

locator block to the supercharger support

plate as show in figure 7-a. Secure the

assembly to the plate by threading the two

1/4-20 x 1” flat head allen screws through the

plate and into the adjustment screw locator

block as shown.

B. Slide the arbor bushing (Ø.75”OD x Ø.530”ID

x .490” long) onto the arbor screw. Verify that

the bushing fits in the arbor slot up against

the arbor screw head. Place the idler spacer

(4GA017-011) and aluminum tensioner idler

onto the arbor screw, secure using the pro-

vided bearing pilot (4FD017-011) and sup-

plied 1/2"-20 hex nut.

C. Fit the supercharger drive belt over the new

crank pulley and supercharger pulley.

D. Tension the belt by using a 3/8” socket to

turn the tensioner adjustment screw anti-

clockwise until the desired tension is

achieved. Secure the tensioner idler by tight-

ening the 1/2"-20 hex nut previously installed.

Fig. 7-a (10-Rib Belt Route Only)

ALUMINUM TENSIONER IDLER

1/2”-20 HEX NUT AND BEARING

PILOT (4DF017-011)

SUPERCHARGER DRIVE

BELT (INSTALLED AFTER

ACCESSORY BELTS)

4GA010-061

CAUTION: Cog tensioner assembly does not use the ten-

sioner arbor method. For cog drive applications

skip to 7-e

1/4-20 X 1” SCREW

ARBOR SPACER

(SLIDES OVER ARBOR)

IDLER

BEARING

PILOT

1/2”-20

HEX NUT

IDLER

SPACER

1/2” MOUNTING PLATE

IDLER

ADJUST

SCREW

BELT TENSIONER ARBOR

IDLER ADJUST

SCREW BRACKET

Fig. 7-b (10-Rib Belt Tensioner Assembly - Side View)