Hitman's Pontiac Trans Am Forum
Trans Am Information => Trans Am Tech => DriveTrain => Topic started by: spalku on September 06, 2009, 08:35:13 AM
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Hello!
I have one question to you.
Since May 2009 i`m a proud owner of a 1978 Trans Am 6.6 . It runs quite well!!! Now i want to do some maintainance. I must explain, that i haven`t done any maintainace on a car quite yet. :-[
Now I want to change the PCV Valve but i don`t now how to put it into the right direction. I ordered a new one (its a Purolator PV 679). One side of the rod inside the valve is signded with an "A". The old valve which is still in the car, has the "A"- side pointing to the carbuterator joined with a hose, but the valve doesn`t fit quite well in the grommet in the intake manifold.
Is this direction/ position right, or has the "A" side point to the intake manifold?
Thank you for a short answer!!!
Best regards from Germany!!!
Marko
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Congrats on the purchase ... post some pix.
I want to say you can blow in it to check - it only goes one way. Also, be careful of the grommet - they typically get real brittle with age.
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Thank you very much- i know that the valve goes in only one way, but which ist the right way?
If the pressure comes from the intake manifold - should it open and blow the gases out into the carbuterator?
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tomorrow i will make some photos of the valve and post them here.
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The larger end should go into the crankcase,while the smaller end goes to the carb.
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Thats right, the larger end goes into the valley pan while the smaller end connects to the manifold vac.
Be careful! I broke the grommet off in the valley pan and had to remove my intake and pan to pry it out! Don't let that happen, it's a pain!
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Hello!
First of all i want to thank you for your fast answers!!!
Now i made some photos to show you my "problem" ;)
The first picture ist the old valve which does not fit correctly in the grommet. Now i think it was false installed the whole time.
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The second picture is the new valve.
I signed the ends of the valve in which way i would mount the valve. i hope thats right.
Thank you!
Marko
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Your second picture is labeled correctly. Definitely a press fit and the grommet in the valley pan does get brittle so be prepared to expand your vocabulary if it breaks into itty bitty pieces.
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Thank you very much for your answer!!!!
I will change the valve on weekend- i hope it works and the grommet doesn`t break.
Best regards
Marko
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Put some wd40 or engine oil on the grommet and pvc so that it will slide in easier. Maybe that will help to avoid breaking it.
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Everything was perfect!!!
The grommet didn`t break and it took only 15 minutes.
Thank you very much for your tips!
best regards
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Cool - congrats Marko. You owe us some pix of your ride... ;)
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OK!
Here they are... :)
It`s a car wich is in an absolutly original condition.
It has only 22.000 miles and comes from switzerland.
best regards!
Marko
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Here`re another pics of my engine.
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Wow - that's a sweet looking '78 ... and only 22K and in Switzerland. Cool.
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Very sharp looking TA! Then again, I'm a little biased :)