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PCV Valve Replacement

 
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  #11 (permalink)  
Old 17 Jun 2013, 05:40 pm
gcb gcb is offline
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Default Re: PCV Valve Replacement

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Originally Posted by pluminator View Post
I had the same oil stain there and at the other end as well. Replaced the hose and cleaned the manifold, 5 months later no hose. My advice. Drop $4 and replace the hose :-D haha

I only ordered the valve. as the hose was perfect... but i did the job Sunday. should have ordered the hose if I found that for sale before.

Everyone saying they use sealant on this valve. DO NOT! the 2min job became a 2h thanks to the previous owner/mechanic using sealant there! it's a very long thread. i wouldn't use even teflon or anything. Also it seals on the tip, not the thread. so just torque the hell out of it without breaking the plastic and you are good!

Also, things to keep in mind. you need a 24mm (or 15/16" for the metric impaired) wrench! you can't do that with a deep socket, or a adjustable wrench! the underside of the housing prevents the thick adjustable wrench from turning in the end, and the deep socket you will have to remove the bottom of the airbox (major PITA)

also, i couldn't get a good view of the top of the threading to remove the old sealant crap with a gasket picker, and probably i left some bits there... it damaged a little the plastic threads of the new valve. I solved that rocking the valve in and out at each half turn. the plastic eventually seated nicely in there. but was a pain.

i cleaned up everything around and put clamps on the hoses, which did not have any crack or damage. nothing. perfect. what i did notice is that the top connector is very badly designed.

well, i think i wasn't loosing oil from there. the old valve still works (tested by blowing in it on both sides) and there was no change in anything after driving with new valve + clamps on hose.

So i guess my quest for the missing oil continues!
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  #12 (permalink)  
Old 18 Jun 2013, 10:29 am
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Default Re: PCV Valve Replacement

Never looked in the hole, just assumed it was thread seal.

Factory comes with sealant; it's white
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  #13 (permalink)  
Old 20 Jun 2013, 01:34 pm
gcb gcb is offline
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Default Re: PCV Valve Replacement

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Originally Posted by UptownSport View Post
Never looked in the hole, just assumed it was thread seal.

Factory comes with sealant; it's white
So that was original...

I noticed that the 1st 2 or 3 days my mpg took a hit on low speed street drive. From 15 to 12!

Now its stable at 17.

Highway jumped from 20 to 23.

But thats only dash numbers. Will have more info when i refill twice.
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  #14 (permalink)  
Old 20 Jun 2013, 07:38 pm
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Default Re: PCV Valve Replacement

Hose clamps are redundant on vacuum lines.
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  #15 (permalink)  
Old 20 Jun 2013, 09:37 pm
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Default Re: PCV Valve Replacement

until hose is 18 Yrs old and has turned to jelly-
Keeps it from falling off and me from buying a new one.
Redundant?

until hose is 18 Yrs old and has turned to jelly-
Keeps it from falling off and me from buying a new one.
Redundant?
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  #16 (permalink)  
Old 24 Jun 2013, 04:03 am
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Default Re: PCV Valve Replacement

yes yes
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  #17 (permalink)  
Old 25 Sep 2013, 03:30 pm
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Default Re: PCV Valve Replacement

On a turbo, PCV valve is on other end of valve cover - and it doesn't have threads, it is a 1/4 turn push-n-twist affair.
I got a new one and that showed me how it goes in - I took existing one out with slip-joint pliers to get at the "nut" base and shook it and it rattled fine, just like the new one, so I put existing one back in.
Where Crewzin shows the PCV valve on his, there is a hose on a turbo that goes to the air intake, just a straight hose.
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  #18 (permalink)  
Old 11 Apr 2014, 03:20 pm
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Default Re: PCV Valve Replacement

07 N/A Engine

Need some good advice on this one. I've been noticing a little oil residue on the PCV valve so I decided to put a new one in.

I replaced one about two years ago.

When I began to wrench the old one out today, the plastic tread broke off inside the valve cover hole and the rest of the PCV valve broke off in my hand.

Now, I'm stuck with almost the entire plastic thread stuck inside the valve cover PVC hole.

I'm afraid to start digging or drilling the plastic out of the hole in fear of bits falling into the engine.

I have temporarily taped off the PVC hole and the vacuum hose hole until I figure this out.

Can I somehow rig a smaller hose from the PVC hole (plastic bits remaining in the thread) to the PVC valve and then to the vacuum hose?

Or, must I take the entire valve cove off to remove the plastic remaining in the thread?

Any guidance is appreciated.

Danny
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  #19 (permalink)  
Old 11 Apr 2014, 06:04 pm
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Default Re: PCV Valve Replacement

Quote:
Originally Posted by Danny7627 View Post
07 N/A Engine

Need some good advice on this one. I've been noticing a little oil residue on the PCV valve so I decided to put a new one in.

I replaced one about two years ago.

When I began to wrench the old one out today, the plastic tread broke off inside the valve cover hole and the rest of the PCV valve broke off in my hand.

Now, I'm stuck with almost the entire plastic thread stuck inside the valve cover PVC hole.

I'm afraid to start digging or drilling the plastic out of the hole in fear of bits falling into the engine.

I have temporarily taped off the PVC hole and the vacuum hose hole until I figure this out.

Can I somehow rig a smaller hose from the PVC hole (plastic bits remaining in the thread) to the PVC valve and then to the vacuum hose?

Or, must I take the entire valve cove off to remove the plastic remaining in the thread?

Any guidance is appreciated.

Danny
Have you tried a screw extractor? Spray some penetrating oil on it and let it set before you begin.
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  #20 (permalink)  
Old 11 Apr 2014, 06:50 pm
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Default Re: PCV Valve Replacement

What I'd do is find something - say a piece of pipe - that fits in the hole. Next, twist duct tape so it's sticky all around and wind it on pipe counter clockwise and then stick it in and try & unscrew.
The plastic should not be bound to the valve cover.
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