Vortech 1999-2000 Honda Civic Si User Manual

Page 21

P/N: 4HC020-010

19JAN04 99-00Honda Civic Si(4HC v3.0)

P/N: 4HC020-010

19JAN04 99-00Honda Civic Si(4HC v3.0)

P/N: 4HC020-010

19JAN04 99-00Honda Civic Si(4HC v3.0)

P/N: 4HC020-010

19JAN04 99-00Honda Civic Si(4HC v3.0)

C. Water Cooler Installation

Using the supplied hardware, loosely attach

one supplied bracket to each side of the water

cooler as per Fig. 11-h. Using sealant, insert the

90° fittings into the inlet and outlet of the water

cooler and point them towards the passenger’s

side of the vehicle. (See Fig. 11-i.)

With water cooler inlet and outlet pointed

up, insert bolts through the brackets into the

existing holes at the lowest mounting point in

the vehicle’s radiator core support.

Tighten the bolts securing the bracket to the

water cooler. Tighten the bolts securing the

brackets to the core support.

Using the brackets as a guide, drill a 1/4” hole

on each side of the water cooler. Insert the

supplied 1/4” bolts through the brackets and

into core support on each side of the water

cooler.

Connect the outlet of the water pump to the far

side of the water cooler with 3/4” hose. Clamp

each end.

Route the 3/4” hose from the remaining fitting

on the water cooler, in front of the radiator, next

to the passenger side upper engine mount,

under the hoses and wiring and next to the

throttle body.

D. Aftercooler Installation

Locate the coolant hose that connects to the

throttle body. Remove the metal tube assembly

and all connected hoses. Install the supplied

1/4” hose and clamps between the thermostat

housing and the throttle body.

Using sealant, install the supplied 90° fitting into

the 1/2” NPT hole in the aftercooler core near-

est the air outlet. Install the supplied straight

fitting in the remaining hole. Connect the hose

previously routed near the throttle body, to the

90° fitting installed in the aftercooler.

Install the supplied 150° hose elbow onto the

straight fitting on the aftercooler so that the

free end will be routed near the distributor.

CAUTION:

In the following step, use

extreme care when drilling

through the core support. If the

drill bit slips or goes through

the hole too far it will damage

the radiator or the A/C con-

11. AFTERCOOLER INSTALLATION, cont’d.

Fig. 11-h