opto vent check valve face witch way - Chevy Impala SS Forum
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post #1 of 12 (permalink) Old 02-25-2013, 02:40 AM Thread Starter
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opto vent check valve face witch way

the part of the check valve with the metal silver side does it face left or right can someone plz look on theirs





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post #2 of 12 (permalink) Old 02-25-2013, 06:48 AM
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silver part face the Opti

blue towards intake manifold

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post #3 of 12 (permalink) Old 02-25-2013, 06:52 AM
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Opti vent check valve face which way?

The picture is correct,the "blue" half always points toward the intake. Yes,it matters.
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post #4 of 12 (permalink) Old 02-25-2013, 01:47 PM
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Good thread here....

Opti vent line check valve and ???

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post #5 of 12 (permalink) Old 02-25-2013, 02:26 PM Thread Starter
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ya but i mean the bigger valve the one that has arrows both sides are blue i mean the side with the holes one side of hole is silver metal piece in there the other side is clear and goes straight through
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post #6 of 12 (permalink) Old 02-25-2013, 02:29 PM
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opto vent check valve face which way?

Mine are both blue on one side,and white on the other.
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post #7 of 12 (permalink) Old 02-25-2013, 02:49 PM Thread Starter
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weird mine lil valve is blue and white and the big one is blue on both sides am gonna look again right now hold on
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post #8 of 12 (permalink) Old 02-25-2013, 03:06 PM
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maybe the new replacement vent harness are now silver/blue. the blue goes towards intake as has been posted

I do know that if reversed your opti will fill up with crud from condensation quickly. Mr Goodwrench reversed mine during service back when the car was in warrenty...killed 5 optis within 500-1000 miles before "I" found the cause. All were under warrenty but what a PIA at the time.

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post #9 of 12 (permalink) Old 02-25-2013, 03:13 PM Thread Starter
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i just need to find out does the side with the meal pin hole face towrds the intake of face down towards the opti this is the bigger valve am talking about



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post #10 of 12 (permalink) Old 02-25-2013, 04:48 PM
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opto vent check valve face which way?

On mine the metal part is on the "blue" half,going to the intake.
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