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post #1 of (permalink) Old 12-02-2001, 06:13 PM
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PCV Valve?


I am wondering something about my PCV valve. I have a 78 Cherokee w/ 401 stock/original motor.
The Haynes manual says the PCV is either inline or a part of the intake Manifold. On my intake right next to the EGR valve is a plastic fitting that fits through a rubber "Bushing" into the manifold. Is this the PCV valve or just a "bulkhead" fitting. There is no other device in the line from the fitting all the way up to the carb. If this is the PCV, Why can't I get it out? I have used everything but a come-a-long to get it out of there and it's in tight!
Any ideas? When I remove the hose nothing comes out of the intake side of the fitting. ( no pressure) I get real strong vacuum from the hose on the carb side.??????????? Any help is appreciated.
Thanks,
Chris



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post #2 of (permalink) Old 12-02-2001, 09:02 PM
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Re: PCV Valve?

PCV stands for Positive Cranckase Ventilation, all of them I've ever come across ccome out of the valve cover, and if you get any pressure(other than a slight amount) out of it, it is likely you have a serious blow by problem. I might be wrong but I don't think so. Anybody else?

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post #3 of (permalink) Old 12-03-2001, 01:56 PM
 
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Re: PCV Valve?

yeah kraby your wrong,

on AMC engines the valve is in that large vac line, stuck straight into the intka emanifold directly behind the carb.

its usually on the end of the hose, and it fits into that rubber grommet on the manifold.

shake the hose, and see if you hear it rattle, thats how I found it the first time!



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post #4 of (permalink) Old 12-19-2001, 11:17 PM
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Re: PCV Valve?

Hey, I'm not perfect. If I were, I'd be GOD! But I ask,<font color=red>How do they acomplish crankcase ventilation if the hose don't tap into the crankcase somehow?</font color=red>[img]/wwwthreads_images/icons/crazy.gif[/img]????

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post #5 of (permalink) Old 12-20-2001, 11:32 AM
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Re: PCV Valve?

The PVC valve in it's location...comes from the lifter valley.....best place to vent the engine in my book

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post #6 of (permalink) Old 12-20-2001, 09:15 PM
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Re: PCV Valve?

<font color=blue>I stand corrected.</font color=blue>[img]/wwwthreads_images/icons/laugh.gif[/img]

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