Vacuum check valve positioning?

[chudzikb]

In the middle of the cooling system redo, and I was replacing the vacuum lines. I don't remember if it is the white side or the black side of the check valve that is toward the vacuum resevoir? Little help...please!

TIA...

[Philly]

I beleive it is the black side that faces the resevoir... cant remember for sure though, car is 60m away or id go check for ya

[chudzikb]

My valve cover and intake are out for powder coating, so I have time for you to check! Just let me know in a day or two and I will be good.

Many thanks!

[Philly]

I can let you know Saturday by the earliest, thats when Ill be heading home... maybe another friendly member here can help you out in the meantime.

[chudzikb]

Nothing going on inbetween now and Sunday at the earliest, so I can wait. And I surely appreciate the help. took it apart, and THEN thought, hummm...maybe the positioning is important! Dohhhh...

[djfiend]

Can anyone confirm this, I am troubleshooting my SAP system and want to make sure I didnt install this valve the wrong way when I redid all my vacuum lines?

[chudzikb]

Sorry, I don't remember, the answer was sent to me via PM...

[KSKarl]

What I always do is blow/suck on the check valve to see which way it lets air go. I'm getting too old to remember color codes....

[djfiend]

I've put everything back together already and would like to avoid having to go through the hassle of pulling the intake apart if its on there right. But it looks like I might have too if I can’t get a confirmation on this. Mine currently has the black end facing the reservoir.