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Location:
NSW, East Coast
Registered:
July 2003
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4AGE PCV help/opinions
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Sat, 07 August 2004 13:15
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I have posted this before and i got nowhere withit, been doing other stuff and know this is the last thing.
4AGE had a standard rebuild 12,000kms ago, nothing out of the ordinary till one day the motor started hissing/whistling for no apparent reason at idle.
Found out that in the cam cover there was "vacumm" (please dont confuss this with pressure) turns out that the inlet manifold is sucking more air/blowby then there is available creating vacumm, and the hissing/whislty sound was coming from the rear or the motor down near the flywheel, open oil cap when motor is running and it sounds like your openeing the radiator cap when its hot, but its not letting air out its letting it in. If i remove the pcv hose and block the hole on the inlet manifold the hissing/whistling stops.
My question is, how/why/what is causing this.
Should i run a pcv valve from a different car.
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Location:
melbourne
Registered:
July 2004
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Re: 4AGE PCV help/opinions
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Sat, 07 August 2004 13:27
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it sounds like ur pcv valve could be blocked.... but if theres a vacume in there shouldnt there also be a vacume in ur crank case etc cos its not really sealed... just run ur pipe from ur pcv out into under the guard if that fixes the problem... i think this one might be a hard one to give advise on without the car infront of me
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 4AGE PCV help/opinions
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Sat, 07 August 2004 13:54
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| 2tg-ta22 wrote on Sat, 07 August 2004 23:27 |
it sounds like ur pcv valve could be blocked.... but if theres a vacume in there shouldnt there also be a vacume in ur crank case etc cos its not really sealed... just run ur pipe from ur pcv out into under the guard if that fixes the problem... i think this one might be a hard one to give advise on without the car infront of me
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Im already doing that with the hose, and yes it fixed the hissing sound. At the end of the hose i use a carby fuel filter to stop excess oil from going everywhere. But i know for a fact it makes the motor sound louder when its removed and the motor runs alot smoother with the pcv connected.
Cheers
Steve
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Location:
Sydney
Registered:
January 2004
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Re: 4AGE PCV help/opinions
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Sat, 07 August 2004 14:40
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hmm wierd. 4ages don't usualy have a pcv as such. mines just got hose going from cam cover to inlet manifold.
I dont know what is up with yours 
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Location:
Brisbane
Registered:
February 2003
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Re: 4AGE PCV help/opinions
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Sat, 07 August 2004 16:28
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4ag(z)e's do not have a valve. just a straight connection.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 01:23
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is your PCV connected IN FRONT of the throttle butterfly?
If not there is your problem!
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 10:39
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| THE WITZL wrote on Sun, 08 August 2004 11:23 |
is your PCV connected IN FRONT of the throttle butterfly?
If not there is your problem!
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UMM no, but then again i got no idea what your suggesting. Would you have a pic available of your setup.
| monkeymajik wrote on Sun, 08 August 2004 02:28 |
4ag(z)e's do not have a valve. just a straight connection.
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True, but what's just inside the inlet manifold where the hose connects, there is something in there, and ive tried heaps of times to clean it, but nothing ever changes.
Cheers Guys
Steve
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 10:57
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| THE WITZL wrote on Sun, 08 August 2004 11:23 |
is your PCV connected IN FRONT of the throttle butterfly?
If not there is your problem!
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ummm.. 4age's have the pcv pipe into the plenium, after the throttle butterfly.
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 10:59
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no they dont - READ THE THREAD ABOVE donghead.
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Location:
Bundaberg, Qld.
Registered:
May 2002
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 12:21
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well there you go, you learn something new every day.  
your post wasnt there when i was writing mine, so i didnt happen to see that link and learn that it routes differently to how i believed it did.
sticks and stones... 
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGE PCV help/opinions
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Sun, 08 August 2004 15:10
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thank god you have a sense of humour and are accustomed to my postal behaviour 
Yes i know u didnt see my post, but i thought it necessary to say that so that the next person didnt fall prey to perpetuated misinformation (eg, semi forged pistons).
FYI et all - the PCV hose does plug onto the plenum, but there is a little channel in the plenum which bring it out in front of the TB butterfly. Hence in a cut'n'shut manifold you need to move the PCV hose.
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Location:
NSW, East Coast
Registered:
July 2003
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Location:
NSW, East Coast
Registered:
July 2003
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Re: 4AGE PCV help/opinions
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Tue, 17 August 2004 06:30
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| THE WITZL wrote on Mon, 09 August 2004 01:10 |
thank god you have a sense of humour and are accustomed to my postal behaviour
Yes i know u didnt see my post, but i thought it necessary to say that so that the next person didnt fall prey to perpetuated misinformation (eg, semi forged pistons).
FYI et all - the PCV hose does plug onto the plenum, but there is a little channel in the plenum which bring it out in front of the TB butterfly. Hence in a cut'n'shut manifold you need to move the PCV hose.
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All hail king WITZL, problem solved, no hole in throttle body gasket for the pcv channel, runs heaps smotther, thanks heaps WITZL.
Cheers
Steve
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Toymods Social Secretary
Location:
Sydney
Registered:
July 2002
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Re: 4AGE PCV help/opinions
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Tue, 17 August 2004 06:31
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well thanks, but the glory really should be taken by some homo up in queensland who brought it up in my thread 
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