Lexus IS300 with 1JZ | 2JZ Power Steering Kit Install Guides
Reservoir Mounting for ALL PS Kits:
Use the supplied Reservoir and IS300 Mounting Bracket to mount to the strut tower on the driver side of the bay. Included in the threaded holes of the Reservoir, use the 2x M8 bolts to attach the Reservoir to the Mounting Bracket. Then mount the bracket to the front strut tower location using self-sourced hardware.
Note: You cannot run a strut tower brace when utilizing the Power Steering Reservoir in this location. As well, we have seen some clearance issues with OEM Brake Master Cylinders, so be aware before this install that it is a tight fit for the Reservoir itself.
See picture below!
Power Steering Kit Installation Instructions:
LHD Lexus IS300 with 1JZ | 2JZ (CB-IS300-PSK)
Before installing any portion of the kit, we will start by removing the factory Pump Feed Adapter from the OE Power Steering Pump. Remove bolt holding on the barb adapter. Once removed, apply a small amount of lubrication in the inlet hole of the pump.
1. The first line in the kit will be the Pump Feed line. This line will be the largest in diameter and should be about 15 inches long. You will connect the 90 degree end to the larger of the two fittings on the bottom of the reservoir. The other end will install to the supplied Pump Feed Adapter.
The Pump Feed Adapter comes with a bracket and fitting - place the bracket onto the adapter in the slot of the fitting itself between the o-ring seal and the main body of the fitting with the part # of the bracket facing down. Install the Pump Feed Adapter into the inlet hole of the pump, then use the stock bolt to attach the bracket to the pump from the OE mounting location of the pre-existing barb.
2. Next, will be the High Pressure line. This line will be shiny compared to the rest and will have the Chase Bays logo on it. You will connect the end with the 90° fitting on it to the pump using the supplied 16mm internal flare sealing adapter fitting. This hose will be routed back from the PS Pump, and then down below the intake manifold towards the rack ports. The straight end of that line will be connected to the High Pressure Port on the steering rack using the supplied 90° adapter fitting and 16mm crush washer seal adapter fitting.
3. The last line will be the rack to reservoir return line. This line should be about 20" long, with a 90 degree fitting at one end and a straight degree fitting at the other end. You will connect the 90 degree end to the low pressure port on the rack using the supplied 17mm internal flare seal adapter fitting. The straight end will then be connected to the smaller fitting on the bottom of the Power Steering Reservoir.
4. Once you have everything plumbed you will need to bleed the system. This is accomplished by jacking up the front of the vehicle so that the front wheels are not making contact with the ground. Fill the Reservoir halfway full with the fluid of your choice and go ahead and start the vehicle. Turn the steering wheel from lock to lock for 5-10 minutes or until there are no bubbles visible in the reservoir. Make sure to keep an eye on the fluid level and top it off as needed during the bleeding process, keeping the Reservoir half full.
The last step is to put the car back on the ground and take it for a drive long enough to get the power steering fluid up to operating temperature. Then park the vehicle and allow it to cool back to ambient temperature. This will bleed off any residual air that may be in the system.
LHD Lexus IS300 with 1JZ | 2JZ w/ Power Steering Cooler (CB-IS300-PSK-PSC)
Before installing any portion of the kit, we will start by removing the factory Pump Feed Adapter from the OE Power Steering Pump. Remove bolt holding on the barb adapter. Once removed, apply a small amount of lubrication in the inlet hole of the pump.
1. The first line in the kit will be the Pump Feed line. This line will be the largest in diameter and should be about 15 inches long. You will connect the 90 degree end to the larger of the two fittings on the bottom of the reservoir. The other end will install to the supplied Pump Feed Adapter.
The Pump Feed Adapter comes with a bracket and fitting - place the bracket onto the adapter in the slot of the fitting itself between the o-ring seal and the main body of the fitting with the part # of the bracket facing down. Install the Pump Feed Adapter into the inlet hole of the pump, then use the stock bolt to attach the bracket to the pump from the OE mounting location of the pre-existing barb.
2. Next, will be the High Pressure line. This line will be shiny compared to the rest and will have the Chase Bays logo on it. You will connect the end with the 90° fitting on it to the pump using the supplied 16mm internal flare sealing adapter fitting. This hose will be routed back from the PS Pump, and then down below the intake manifold towards the rack ports. The straight end of that line will be connected to the High Pressure Port on the steering rack using the supplied 90° adapter fitting and 16mm crush washer seal adapter fitting.
3. The last lines will be the Rack to Cooler return line, and the Cooler to Reservoir lines. The first line should be about 87" long, with a 90 degree fitting at one end and a 180 degree fitting at the other end. You will connect the 90 degree end to the low pressure port on the rack using the supplied 17mm internal flare seal adapter fitting. Then, mount your Power Steering Cooler using the supplied loop clamps and hardware for existing holes to the area in front of the AC condenser/hood latch. The 180 end of that line will then be connected to the fitting on the opposite inlet of the cooler. This line will be routed up from the rack port, forward along the frame rail, and tuck between the headlight, ECU box, and Radiator to go to the front of the car and connect to the far side of the cooler.
4. The final line will be the roughly 42" line with a 90 and straight fitting ends. Connect the 90 end of this line to the smaller fitting on the bottom of the Power Steering Reservoir. Route the line parallel with the previous long line to the cooler, and attach the straight to the closer side of the cooler.
5. Once you have everything plumbed you will need to bleed the system. This is accomplished by jacking up the front of the vehicle so that the front wheels are not making contact with the ground. Fill the Reservoir halfway full with the fluid of your choice and go ahead and start the vehicle. Turn the steering wheel from lock to lock for 5-10 minutes or until there are no bubbles visible in the reservoir. Make sure to keep an eye on the fluid level and top it off as needed during the bleeding process, keeping the Reservoir half full.
The last step is to put the car back on the ground and take it for a drive long enough to get the power steering fluid up to operating temperature. Then park the vehicle and allow it to cool back to ambient temperature. This will bleed off any residual air that may be in the system.