Good point.  But, people who deem themselves knowledgeable sure extol the importance of this oil filter feature.  mcneely

---- Alistair Bell <albell@shaw.ca> wrote:
> I've never been clear about what the heck an anti drain back valve does on an oil filter that is pointing more or less down as it does on the wbx.
>
> Maybe it is an anti suck up valve?
>
> Alistair
>
>
>
>
>
> > On Feb 25, 2014, at 4:03 PM, Dave Mcneely <mcneely4@COX.NET> wrote:
> >
> > The filter will work with any oil.  The filter has an anti drain back valve.  So do a lot of other quality filters, and some that are not so good, at least I hear that they are not so good.  Given the good marks given to both Mann and Meyle oil filters by a lot of people who know more than I do, and their availability and price from the online Vanagon parts vendors, I use them.  mcneely
> >
> > ---- Eric Caron <ecaron1@COMCAST.NET> wrote:
> >> My van sits a long time between starts.  How would this filter help and would it work with mobile 1 Synthetic?
> >>
> >> Eric Caron
> >> 85 GL Auto
> >>
> >>
> >>> On Feb 25, 2014, at 3:59 PM, JRodgers <jrodgers113@GMAIL.COM> wrote:
> >>>
> >>> Having a Mann oil filter will help prevent this.
> >>>
> >>> John
> >>>
> >>>> On 2/25/2014 2:28 PM, Steven Shelton wrote:
> >>>> This is turning into a real nightmare.  I reinstalled the AFM; now it
> >>>> starts fine, but the engine makes a loud clattering!  It's done this
> >>>> occasionally over the years, but always went away pretty quickly.  Now it
> >>>> won't stop.  I've gone over it with a stethoscope and it seems to be
> >>>> loudest at the driver's side of the intake air distributor, but it's hard
> >>>> to pinpoint.  I disconnected the fuel injector plugs and cranked the engine
> >>>> to see if something was bouncing around in a cylinder, but heard nothing.
> >>>> Can all this be related?  It all started off with a shorted oil pressure
> >>>> sensor wire.
> >>>>
> >>>>
> >>>> On Tue, Feb 25, 2014 at 2:25 PM, Dennis Haynes <d23haynes57@hotmail.com>wrote:
> >>>>
> >>>>> Intermittent problems are often elusive. Will it start reliably with the
> >>>>> AFM
> >>>>> disconnected? If yes then you do have a mixture control issue and the
> >>>>> sensor
> >>>>> being disconnected is helping get past it. I would look for massive vacuum
> >>>>> leaks and wiring issues. Except for the O2 sensor which is a "consumable",
> >>>>> it is very rare for any of the other sensors to go bad. Again, the
> >>>>> connectors and wiring is more often the real problem.
> >>>>>
> >>>>> Dennis
> >>>>>
> >>>>>
> >>>>> -----Original Message-----
> >>>>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
> >>>>> Steven Shelton
> >>>>> Sent: Tuesday, February 25, 2014 2:12 PM
> >>>>> To: vanagon@GERRY.VANAGON.COM
> >>>>> Subject: Re: Engine Starting Problem
> >>>>>
> >>>>> I meant that the engine turns over and over but it will not start/run.  I
> >>>>> checked the intake air sensor (Bentley 1999 edition pg 24.28):
> >>>>>
> >>>>> 2-3        556
> >>>>> 6-9        557
> >>>>> 6-22      2697@18 degrees C
> >>>>> 2-3 and 7-9:  ohms change as I moved the sensor plate
> >>>>>
> >>>>> Is this a definitive test or could there still be something wrong with
> >>>>> intake air sensor?
> >>>>>
> >>>>>
> >>>>> On Tue, Feb 25, 2014 at 1:59 PM, Dennis Haynes
> >>>>> <d23haynes57@hotmail.com>wrote:
> >>>>>
> >>>>>> Cranking and starting are two completely different issues. The starter
> >>>>>> will crank (turn)the engine over if you removed the complete fuel
> >>>>>> delivery system and put it out to the garbage.
> >>>>>> Check the wiring on the back of the starter. The solenoid trigger wire
> >>>>>> may be loose and you're working near there is making or breaking that
> >>>>>> connection.
> >>>>>>
> >>>>>> Dennis
> >>>>>>
> >>>>>> -----Original Message-----
> >>>>>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
> >>>>>> Behalf Of Steven Shelton
> >>>>>> Sent: Tuesday, February 25, 2014 1:18 PM
> >>>>>> To: vanagon@GERRY.VANAGON.COM
> >>>>>> Subject: Re: Engine Starting Problem
> >>>>>>
> >>>>>> OK, as I said above, the engine would not crank at all, even after
> >>>>>> returning to it using a charged battery the next day.  As soon as i
> >>>>>> removed the AFM, even with the #1 spark plug removed, the engine
> >>>>>> cranked right up.
> >>>>>> I checked the ECU connector, with the following results:
> >>>>>>
> >>>>>> 2-7     3213 ohms@16 degrees C
> >>>>>> at this temperature the reading should be 3000 ohm to 3500 ohm.
> >>>>>> I also checked at the temp 2 sensor, it was 3178 ohm.
> >>>>>>
> >>>>>> Other readings were:
> >>>>>> 1-7     10.64 V
> >>>>>> 5-7      infinity
> >>>>>> 6-19    558 ohm
> >>>>>> 7-25      0 ohm
> >>>>>> 11-7     14.9 ohm
> >>>>>> 12-7     15.1
> >>>>>> 14-6     3154 ohm
> >>>>>> 15-19     555 ohm at rest, it moved up when I moved the plate
> >>>>>>
> >>>>>> Does this mean conclusively that the temp 2 sensor is OK?  Any
> >>>>>> suggestions on what to try next?
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>
> >
> > --
> > David McNeely

--
David McNeely