I have a B20/Vtec in my car. Its blowing smoke and oil from the breather hole on the valve cover. The Bottom end is a 96 or newer B20 so there is no pcv vent in block. What are you guys doing for a PCV systems on your B20/Vtecs?

 

You should try searching - there are a BUNCH of threads on this. Try "PCV" and "breather" or "catch can."

 

Thank you for your helpful post. I have searched it and im still unsure on what to do. All im asking is for people with a B20/Vtec to please post up the way they have there systems.

 

get either the endyne or z10 breather kit im gonna use the z10 kit

 

ttt guys looking for some input.

The z10 breather kit looks like its made to be used with the Port on the back of the motor. Since my bottom end it a 96 and newer that port is not there.

 

Heres a few different catch can/ vented valve cover setups:
https://honda-tech.com/forums/welding-fabrication-53/vented-valve-cover-post-up-some-pics-1970101/

What are the specs on the b20/vtec? Is it just a stock b20 block with a stock Vtec head...etc

 

Yes that is all it is. Its running on a P28. I was told that just one day it started blowing this smoke out the valve cover.

 

I'd start by doing a compression test before doing a catch can setup

 

Ya but im afriad to...

 

I dont own a Leak down tester. I dont know anyone that does, Would a Comp test not help me figer it out?

 

will a cusco catch can be ok for b20v setup

 

Here is a little write up I did when I was venting the valve cover on my b20vtec. Hopefully it helps you out with part numbers if you decide to vent your valve cover.

http://eastcoastefcivics.com/index.php?topic=1050.0

Also, I'm using a catch can from these guys.

http://www.carolinahondas.com/blueri...240sx-s14.html

 

my bottom end is a 99 the z10 kit and the endyne kit hooks up where the 2 freeze plugs on the back of the block are its those 2 big plugs you cant miss them they come out and are replaced by the 2 plugs that come with the kit

 

ttt

 

I need to do a better job of venting my engine as well

 

i vented the block.. this way

https://honda-tech.com/forums/showpo...36&postcount=4

 

yea thats the same way endyne and z10 kits are same plugs

 

Did A Comp Test last night and its no good. Heres how they look:
1-100psi
2-180psi
3-180psi
4-40psi

Again there is no smoke out the rear of the car so what do you guys think?

 

with that kinda compression what else can it be besides rings unless valve seals can cause a compression drop either way motor needs to be rebuilt or atleast the head does if its valve seals

 

Damn

 

I was thinking that number 4 might be a bent valve. That would also explain the ton of blowby.

 

your ring didn't seal, or cracked ringland will cause a low compression, plus smoke coming out of holes it shouldn't be coming out of

 

Well the cars been sitting for 3-4 months. Do you think driving it around for a bit might seal the rings up? If thats what it is.

 

i doubt it, once your start a fresh motor and the rings don't seal then you basically have to re do everything.

 

This motor is not fresh? Its a older motor I think. I got it from a guy, Its been sitting for 3-4 months when I got it. I just got it running again.