Unhook PCV hose from intake?

[Tim_K]

On my V-6, there's a hose running from the front valve cover to the intake manifold for the PCV. I want to disconnect this hose, because all it does is draw oil mist into the engine, where it carbons up the lower intake manifold ports, and the ports in the head and the valves too, reducing flow and costing me horsepower.

Any bad sides to this? I've had the vent hose on the rear valve cover unhooked for a long time and it never made a mess.

[lookin]

Here is what I finally did to help with that. It really works quite well.

If you look closely at my forward PCV hose, you will see I have improvised a small trap to catch oil vapor, without restricting ventilation flow. It seems to work really well. You don't need to empty it, if you make sure it is at an inclining angle, so the oil condensed onto the glass can drain back into the valve cover vent.

Install the filter case, inline on the PCV hose, without the filter inside. That old picture of my engine shows it with the filter. Trust me. It doesn't work as well with the filter.

Kragen, Checker, and Advance sells them. Use this link




For the back.

This thing works really well. I empty the reservoir, of approx 3 tablespoons of oil, every month or so now.

I replaced my back valve cover PCV vent, with a 3/8" hose that goes from the back PCV valve cover vent, to my K&N Apollo CIS air filter.

NOTE: The picture shows, where I used to have the hose connected, to the reducer the air filter connects to. I got bad Bernoulli effect, which only sucked more oil, the way it was. So I got a new reducer, and I installed a fitting right on the filter housing, between the throttle body and the filter media.

Then I got one of these, HUSKY 1/4 In. Air Compressor Filters, at the local Home Despot. You also will need, two 1.4" npt male to, 3/8" male nipple fittings, for the hose.



I put this, now a 'mini catch can', in line on the back vc vent hose. Since it is black it doesn't show in the picture of my engine.

Be sure to buy a metal reservoir, to replace the clear plastic one, because oil will break down the plastic one.

I used a cheapo PCV valve, for our engine, in place of the plastic filter inside. You must remove that tiny filter. It just screws out, and one of our PCVs will screw right in, in it's place. Be sure to cut off the PCV tube, where it begins to narrow, and then remove the one way valve.




Try running Auto-Rx also, to totally clean your engine from all sludge and even varnish, and your valve covers PCV vent baffles will begin to flow as they should. Doing that will really help.

[Ondonti]

I would like to install an exhaust routed pcv system on my car that doesnt have a catalytic converter.

[lookin]

All you have to do is weld a bung I think.

[lookin]

OK Tim K.

I think we all know, that you were kidding, when you asked if disconnecting your PCV system is a bad idea. We know you know what you are doing.

I just thought I would share my PCV setup with you.