I bought a block (used) and built it and put it in my car. The spot for the oil breather canister had been plugged so when I changed all the stuff over from my old motor I just left the canister off. I plugged the line coming from the intake manifold going down there after the pcv valve. Did I do the right thing and should I install a catch can? I'm mainly worried about the line going to the pcv valve.

 

You really should have something to vent the crank case whether it be the stock system, a catch can, or even just a breather filter with the PCV valve removed.

 

So should I connect a catch can between the valve cover and intake manifold and remove the pcv valve?

 

a catch can is nice but really isnt necessary. you could just run an open line off the cover and let it release like that.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Deckedlude &raquo;</TD></TR><TR><TD CLASS="quote">a catch can is nice but really isnt necessary. you could just run an open line off the cover and let it release like that. </TD></TR></TABLE>

Agreed, but I'd put a filter on it though.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JMinSi2000 &raquo;</TD></TR><TR><TD CLASS="quote">So should I connect a catch can between the valve cover and intake manifold and remove the pcv valve?</TD></TR></TABLE>

I'm rather sure that if you take out the PCV valve w/ that setup you'll be pressurizing your crankcase when you get into boost conditions.

I have my intake manifold capped, running the PCV valve to a catch can, and have a filter on the breather hole in the valve cover. Not the best solution, but should relieve any crankcase pressure OK.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by notoriousB &raquo;</TD></TR><TR><TD CLASS="quote">

I'm rather sure that if you take out the PCV valve w/ that setup you'll be pressurizing your crankcase when you get into boost conditions.

I have my intake manifold capped, running the PCV valve to a catch can, and have a filter on the breather hole in the valve cover. Not the best solution, but should relieve any crankcase pressure OK.</TD></TR></TABLE>

If you are running a turbo then you are pressurizing your crank case, the Honda PCV valve was never meant to see boost, that's why it closes when there is positive pressure in the intake.