Fitted pro vent to td5
Originally Posted by
PhilipA
I am aware of that and how the CDV works. I have also pulled one apart. It works by inlet depression pulling it shut and is usually open.
The point I was tentatively making is that Many think that the valve in a Provent can replace the valve.
First I have never seen specs on the manifold depression required to shut the valve or even if the valve is a CDV.
After having a look at my fake one a week ago, I wondered if it was actually a relief/bypass valve for when the filter became blocked. In other words the opposite of a CDV. Can anyone confirm the function of the valve? I cannot recall it's function in the specs as listed on the Mann Hummel site.
In the meantime I have left my CDV alone.
Regards PhilipA
Ah! Now I understand where you’re coming from... on a Provent 100 / Flashlube Catch Can Pro and presumably their clones - the bottom side vent near the inlet pipe is the pressure relief value and the top vent above the outlet pipe is the vacuum relief valve. When the filter blocks both vents open to atmosphere.
LROCV member #131
1999 build D2 TD5 Auto, Mantec snorkel, 2" LRA spring lift, ARB on board air, Ashcroft ATB, CMM air ram CDL shifter, swag & gold pans ....
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