Checking my T-vis is working correctly and when blowing air from B to A on my VSV vacuum tank there seems to be alot of crap and corruption in the tank, oil gargles out. I'm guessing this is just from blow back etc. from the turbos? Correct?
Also, having trouble coming up with solutions on providing a measurable vacuum, (sucking on the nipple makes the tvis close but i can't measure that ) Also, should it close lethargically or snap shut once 500mmHg is reached?