What To Use To Plug Valve Cover Vent Hole

[rico05]

I really need to plug up the gaping hole that is on the exhaust valve cover. I lost the little 90 degree fitting that allows you to run the hose to the turbo inlet duct, so what could I use to plug it off? Any ideas? Please somone help me on this one.

[float_6969]

A bolt with the same thread pitch and diamter?

[rico05]

Um, not threaded. It is just a smooth bore hole. I was thinking a fat bolt and JB Weld?

[WeldingHank]

how about a breather filter? i think that would be a better idea.

[rico05]

Yeah, but it is just a hole. I don't have the 90 degree fitting like I said. What kind of tube or whatever could I use that won't fall out or get sucked in that I could use to attach the filter?

Does everyone know what I am even talking about??

[WeldingHank]

isn't it more of a neck sticking out? or is it sunk in. i haven't seen too many CA18 valve covers. but the last one i say it was sticking out. if it is, get a peice of tubing that fits over it.

[rico05]

Like I have said 3 times now, the "neck" is gone. Here is a pic. I need that hole not open.

[WeldingHank]

i belive that needs to vent to somewhere. i don't think you should plug it.

[rico05]

You can have it vent to the turbo inlet duct, but I am not a fan of letting my engine eat its own poo. I have been told for a while that I can plug it or get a catch can (which also kinda blocks it off to airflow).

[rico05]

So no opnions on bolt and JB Weld?

[Xero]

you should be able to find a 90 degree pipe fitting, thing is, that needs to be open. The way the CA is, it has, basically, 2 cam covers. So that's why there's 2 vents, you need to vent that **** out.

I say find a 90 degree pipe fitting, should be able to get a smooth bronze one, and braze it or JB weld it or wahtever it to fit in there, and pipe it to a catch can. Or to the turbo inlet till you can get a catch can.

[rico05]

Where can I get said fitting?

[float_6969]

Dude, go to a junkyard and just gank that peice off of one of the motors. If nothing else, see how much they charge for one of the covers? I don't think you want to plug that off, as the PCV system is kind of important. With out it, you'll contaminate your oil at a much quicker rate and could cause the engine to wear faster.

[rico05]

The PCV is fed off of the intake cover float. This is the exhaust. All it does is vent to the intake tract, dumping oil into the turbo inlet. There are no CAs in any local junkyards either. I al ready checked. Basically, I need to make this or have someone sell me one.

[fanta]

Grab a valve cover off of someone on the board and set up a catch-can, or a fuel filter at the least.

[cuzan0]

all's you need is one of these things and route a hose to a catch can so you dont fill your intercooler up with oil.......

[rico05]

GREAT! So.....where do I get one of those fittings?

[cuzan0]

GREAT! So.....where do I get one of those fittings?

HOME DEPOT!!!:D

[Xero]

actually, Home Depot Performance

I've been going to Lowes Speed Shop, though, lately, since they seem to have a) what I'm looking for and b) better prices, but...

Everyone knows Home Depot Performance

[float_6969]

The PCV is fed off of the intake cover float. This is the exhaust. All it does is vent to the intake tract, dumping oil into the turbo inlet. There are no CAs in any local junkyards either. I al ready checked. Basically, I need to make this or have someone sell me one.

Thats kinda true, but not always. Depeding on what the motor is doing the air will flow either direction. When the manifold is under a vaccum, air flows one direction, when it's not it flows the other direction. If you plug it off, the PCV system will no longer work, which means the gases that it's supposed to be cleaning out of the crankcase, won't be cleaned anymore and your oil will be contaminated quicker and the corrosive gasses will cause damage to your metal parts. Here's a better description...

[rico05]

Yeah, but the PCV itself gets the hose from the intake cam valve cover. This one feeds into the intake via the inlet duct after the MAF. But yes, you are right I can see...it does need to be vented. Where in Hone Depot can one find those? And what size are they by chance? Will I need to thread the hole in the valve cover for that to work, or is it soft enough I can just screw it in and go?

I guess I could always take the cover in and test stuff out on the sales floor.

[drumma022]

I have a set of vave covers that already have the AN fittings and including the 90deg elbow for 2 of the fittings. Powder Coated Black for $100

[minutericesentra]

Well this is what I didhttp://community.webshots.com/...unyAA

I had my vo-tech instructor weld the vents closed and fill in the depressed area that was for the FWD intake pipe, I still have one vent tube on the back of right of the intake valve cover which will go to a vented catch can. I still need to grind a little and sand them smooth and paint them but you get the idea.

[Dystopia]

just make a catch can its fairly easy to do there are tons of FIY's on the intarweb also

[rico05]

-minutericesentra: So you have yours blocked off? Seems that everyone so far has said that is bad. Kinda wish the Guru (aka Dee) would chime in...

[minutericesentra]

I blocked off two holes, I still have one that i'll use for the catch can and breather.

[Rookie_ca18]

I say if you can find a fitting then do that and run it back into the intake after the maf or just make a catch can, I think float has pretty much established blocking it is a bad idea. Hope you get it all sorted out.

[SSSCA18DET]

Yes blocking is bad, if you block them off, you increase the crankcase pressure, and this can lead to oil problems through the turbo.

I'd suggest getting a catch can, either off the shelf, or have one made.

I got mine done for about $100US.

Here's a crappy pic.