Thanks Dennis and others for the info.  I thought this was the same item I’ve heard called the oil tower. 
        Crazy how much there still is to learn. 

Eric 

> On Aug 13, 2023, at 11:02 AM, Dennis Haynes <d23haynes57@hotmail.com> wrote:
> 
> PCV=Positive Crankcase Ventilation.
> This is the method of extracting piston blowby and other fumes from the crankcase for many vehicles. Note the Vanagon does not use a PCV system. It is basically an open vent leading to the engine intake between the air flow meter and throttle. The job of the tower is to let some of the liquid separate and return to the crankcase.
> 
> A PCV system usually consists of some type of metering device that connects under the throttle plate so that so that especially at low speeds the blow by and stuff is actually sucked out and fresh air pulled in.
> 
> Dennis
> 
> 
> -----Original Message-----
> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of Eric Caron
> Sent: Sunday, August 13, 2023 8:41 AM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: Silly thing once more…pcv tower
> 
> Hey,
> 
>        I’m always willing to model being willing to ask questions that show I know so little!
> 
> What does PCV stand for?
> 
> Eric
> 
> 
>> On Aug 11, 2023, at 11:40 PM, Alistair Bell <ragnarhairybreeks@ICLOUD.COM> wrote:
>> 
>> I’m off to explore fav valley on Vancouver island next week. Yeah tonight is first night of my hols!
>> Made a thing this week and finished this aft. Experimenting about a better pcv valve on the wbx
>> 
>> https://shufti.blog/2023/08/11/vanagon-pcv-tower-experiment/
>> 
>> Ab