Oil Catch Can/PCV valve...

[Conundrum]

I'm thinking of adding an oil catch can onto my 7th gen to catch any oil vapour from being pulled back into the intake (to help keep things cleaner). Anyways, I know these things are supposed to connect between the PCV valve and the intake, however to me I can only spot two places to connect this thing to, and neither seem to be the PCV...

http://www.hondaautomotiveparts.com/auto/jsp/mws/catimgs/14sdn0_e0801.gif

Going by my own logic, it makes sense to connect it inline with the breather tube "5" shown in the diagram above. The only thing is that hose connects directly to the side of the engine, so unless the PCV valve is inside, I can't see it being the right spot. The only other location I can think of (and one other member of V6P), is inline with hose "1", however since that doesn't blow back into the intake it doesn't seem to be the right one as well.

If anyone knows where to connect a catch can please let me know...or at least if they know where the PCV valve is on the J30A4/5.

Thanks in advance.

[Conundrum]

slight bump -- does anyone have any ideas, or know where the PCV valve is on the J30A4 or J30A5 (so 7th gen V6 engine)? I'm waiting on buying the can until I know where I should place it...

[princess]

maybe these will help..............:dunno:

[mnkyman]

hmm, only thing i can say would be to search for the diy over at gen7accord...there was a diy a little while back about how to make your own catch can for like 20 bucks with parts from home depot...

if ya dont find it, pm Suleman (a member there) and a personal friend of mine, he has one on his car and im sure he wouldn't mind pionting you in the right direction

[Conundrum]

maybe these will help..............:dunno:

THANKS, those are what I have been look for :D :thmsup:

I guess its kinda what I thought...that the PCV existed over near the crank pulley, but the breather tube that connects to the intake is on the other side of the engine (and the other bank of cylinders). From what I gather about other people's installs, the PCV was near the "end of the line" and so it went:

engine/crankcase -> PCV -> breather tube -> intake

On our V6s, it appears to go:

engine/crankcase (front bank) -> PCV -> breather tube -> engine/crankcase (rear bank) -> breather tube -> intake

Therefore it almost seems to blow stuff from the front bank into the rear bank when the PCV is open, then I guess pressure just pushes it across the rear bank and out the second breather hose into the intake? :dunno:

Most catch cans get installed right after the PCV and right before the intake, although from what I have read on V6P, anyone who puts one at the end of the line on the J30 doesn't get much buildup...but tonnes go through the PCV and into the rear bank (if I am understanding this right). That would almost have me put the can over near the crank pulley (so on the hose that connects the PCV to the rear bank), but then I'd worry I'd lower pressure and possibly the rear bank couldn't vent to the intake even if it needed to... :dunno:

[Conundrum]

hmm, only thing i can say would be to search for the diy over at gen7accord...there was a diy a little while back about how to make your own catch can for like 20 bucks with parts from home depot...

if ya dont find it, pm Suleman (a member there) and a personal friend of mine, he has one on his car and im sure he wouldn't mind pionting you in the right direction

Thanks, but I went to pm him, then noticed he has the I4...meaning its routing would be different (with only 1 cylinder bank, it should be simplistic in comparison).

I guess I'll stop by Honda on the way home in the next few days...The dealership I use for parts always seems to help me with my crazy ideas (even if they don't agree with them, lol), so hopefully someone there will be able to let me know. Worst case, I'll just hook it up between the rear bank and the intake...since at that location it will either help or do nothing (vs do more, but possibly run the risk of damaging something in the rear cylinder bank).

[darkriver4362]

I have a Greddy one that came off my buddy's Supra for uber cheap lol.:thmsup:

[Armystrong]

I have a Greddy one that came off my buddy's Supra for uber cheap lol.:thmsup:

I am really looking hard and searching for pictures of an oil catch can for an 05? Someone.......anyone?

[CA05LXDriver]

What known problem would this solve?

[turBeau]

What known problem would this solve?

Removes oil vapors from getting stored in the intake manifold. I'm really going to try and do mine when I get my TSX IM in.

[Conundrum]

I still haven't done mine yet....grrr

Honestly I can't figure out the right way to do the V6...as each of the two banks of cylinders has its own breather connected to either the IM or the intake tract (just before the TB), but there is only a PCV on the front bank (which connects to the IM) and nothing on the rear bank (its just a hose that connects the rear bank directly to the intake tract). Both are shown in the pic I post above in this thread (as hoses 1 and 5). Makes no sense to me and I don't really want to screw anything up...

[turBeau]

Ok, #5 comes off your valve cover and ties into the intake hose, correct? #1 actaully goes into the intake manifold, correct? Let me know before I go any further.

[Conundrum]

http://www.hondaautomotiveparts.com/auto/jsp/mws/catimgs/14sdn0_e0801.gif


#5 technically comes directly off the intake. If your intake is stock, then #5 is the small bit that comes off the rear bank and connects to a metal pipe (pair of pipes actually), that then connects to the accordion (no pun intended..lol) bit which connects your airbox to your throttle body. If you have a CAI like me, then it connects to the CAI pipe just before the throttle body.

#1 comes off the PCV (which is hidden somewhat below the plastic engine cover that sits over the front bank of cylinders), then connects directly to the intake manifold almost beside (and just in front of) the crank pulley.

Logically speaking to me, the "best" place to put a catch can is on hose #1, as it has the PCV, and will control flow into the catch can. As for the other "side" of the engine...I have no clue, because if it only vents by suction alone (so when the engine is trying to pull in as much as it can, it sucks both from the airbox and also somewhat from hose #5), then I'd be worried that putting a catch can would lower the amount of suction, causing the oil and gases to sit in the rear cylinder bank most of the time. While this might keep the IM cleaner, those gases are corrosive to your seals, and I'd rather have it reburning in my engine than eating my seals.

Most V6s from what I have looked into have 2 PCVs...one for each bank on the engine. Even Subaru's H designed engines use two valves. Honda has just stumped me with this one (to the point of almost considering adding another PCV onto the rear bank then a catch can...but I'd like to talk to someone who truly knows the J30 set up before doing something like that).

[Armystrong]

I am still hoping someone can send me a picture or install instructions for 05 sedan I4.