9. Slide the locknut through onto the top of the thread, and begin tightening the adapter against the thread. It may help to fit the elbow onto the adapter for this part to get more leverage. If the rubber seal starts to press out, you've tightened it too far.
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10. Remove the 90 degree elbow, apply some thread sealer to both threads, and tighten it against the adapter using the two wrenches while also positioning the barb to point toward the throttle body. Note: if you run out of space to turn, DO NOT OVER-TIGHTEN THE ADAPTER. The plastic on the manifold is pretty thick but it can still crack if you get crazy. You can tell if you're going too far when the rubber seal starts to press outward. Back out the adapter, remove the locknut, turn it clockwise one step, and put it back in. This will give you another 60 degrees before it gets too tight again, which should be plenty. At this point, the first washer you slid onto the adapter may start flaring upward. That's OK, its primary purpose was to distribute the force of the adapter against the plastic on the intake manifold so it doesn't crack; it is the nitrile seal on the inside that will keep this from producing any leaks.
11. Once the elbow is attached, apply some thread sealer to the barbed fitting, and attach that to the check valve to the end the arrow is pointing to. Next, attach the check valve to the elbow. Important Note: When tightening the check valve, be sure to use a wrench to hold the elbow, and do not place any weight on the intake manifold itself. If you fail to do this, you will apply too much axial pressure on the adapter and may crack the intake manifold. Do not use the manifold for leverage when tightening the check valve; instead, hold the adapter with a wrench.
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12. Measure and ensure that the length of your hose is ~10.5". Slide the hose clamps about 2" over each end of the hose clamp. Then, push the hose clamp over the barbed fitting while holding the check valve. Do not hold the intake manifold while doing this as you may apply too much axial pressure to adapter and crack the manifold. It helps to coat the barb with some silicone grease/spray, or soapy water if you have a tough time getting it on. Once you have the hose on, use some pliers to slide the hose clamp over the the wider section of the hose that the barb is going through.
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13. Lastly, attach the brake booster tee fitting to the hose in the same fashion as in the last step, and install the fitting on the intake manifold as shown below.
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Note: The hose supplied with the kit should measure approximately 11". I measured an ideal length of 10.5" on my own intake manifold. Trim the hose if you find that it is too long.
10. Remove the 90 degree elbow, apply some thread sealer to both threads, and tighten it against the adapter using the two wrenches while also positioning the barb to point toward the throttle body. Note: if you run out of space to turn, DO NOT OVER-TIGHTEN THE ADAPTER. The plastic on the manifold is pretty thick but it can still crack if you get crazy. You can tell if you're going too far when the rubber seal starts to press outward. Back out the adapter, remove the locknut, turn it clockwise one step, and put it back in. This will give you another 60 degrees before it gets too tight again, which should be plenty. At this point, the first washer you slid onto the adapter may start flaring upward. That's OK, its primary purpose was to distribute the force of the adapter against the plastic on the intake manifold so it doesn't crack; it is the nitrile seal on the inside that will keep this from producing any leaks.
11. Once the elbow is attached, apply some thread sealer to the barbed fitting, and attach that to the check valve to the end the arrow is pointing to. Next, attach the check valve to the elbow. Important Note: When tightening the check valve, be sure to use a wrench to hold the elbow, and do not place any weight on the intake manifold itself. If you fail to do this, you will apply too much axial pressure on the adapter and may crack the intake manifold. Do not use the manifold for leverage when tightening the check valve; instead, hold the adapter with a wrench.
12. Measure and ensure that the length of your hose is ~10.5". Slide the hose clamps about 2" over each end of the hose clamp. Then, push the hose clamp over the barbed fitting while holding the check valve. Do not hold the intake manifold while doing this as you may apply too much axial pressure to adapter and crack the manifold. It helps to coat the barb with some silicone grease/spray, or soapy water if you have a tough time getting it on. Once you have the hose on, use some pliers to slide the hose clamp over the the wider section of the hose that the barb is going through.
13. Lastly, attach the brake booster tee fitting to the hose in the same fashion as in the last step, and install the fitting on the intake manifold as shown below.
Note: The hose supplied with the kit should measure approximately 11". I measured an ideal length of 10.5" on my own intake manifold. Trim the hose if you find that it is too long.
