DIY: Aftermarket PCV into OEM PCV
This is a DIY that is meant for the VX crowd that doesn’t have the OEM PCV “Elbow” and want theirs to be like the stock one again. Honda doesn’t sell the OEM one anymore.
A little background:
The OEM PCV (Positive Crank Vent/Valve) is no more than an emissions elbow with no internals inside it. Most of the previous owners of the VX have had theirs replaced and since the VX is such an odd car, the replacement part is actually a normal PCV. The usual test to see if a PCV is good is to remove it from the car and give it a shake. If it makes a clicking noise, it’s still good. If it makes no noise, it’s bad. Since the OEM one has no internals, it makes no noise and the mechanic/person will replace it.
On to the DIY:
Things you need:
- PCV (I’m using the “blue” aftermarket replacement one from Fram)
- Sharp utility knife or hacksaw
- About ten minutes of time
So you have your PCV
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You’ll want to secure your PCV and start cutting just above the tip. If you look inside the small hole on the PCV you’ll see the plastic tip is about an 1/8th of an inch thick. Cut right where you see the saw placed in the picture you’ll cut just above that thick part and things will work out great.
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Once you’ve cut off the tip, it should look like this
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Now gently turn the PCV so the black part is pointing down and the plunger and first spring will slide out like so
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There is one more spring to get out of the PCV, it is the small one in the picture. You should be able to tap the PCV a few times with the black end pointing down and the small spring should pop out.
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The PCV should now be free of all internals
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Now you can clean off any strands and debris from the modified PCV.
Install the modified PCV back into the car and enjoy the sense of accomplishment.
Theory:
I believe the reason that Honda set up the PCV system on the VX like this was to run a higher vacuum on the lower end of the motor. This helps to combat pumping loses in lower RPMs.
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