[Vwdiesel] Fuel line Check Valves?

[MLightner]

>Right rear  wheel well arch (take wheel off)
>At front of arch, the hosecoming down from the water separator has a black
>plastic  gizmo spliced in to it witf a couple of compression ferrruls
>(probably by now all rusted out)

I didn't know about that one... 

>You can poke a small diam rod in to the inlet end and unseat the disc to
>release any debris that might be holding it open.  I have had one apart once (Epoxied it >back together)

cool, that's good to know.  Do you mean you were able to reuse it after disecting it? 

>It has a weak spring, and a disc made of rubberized fabric for the valve

I'd been wondering what's in there

>Sometimes they get sticky, or crud props them open and fuel drains back to
>the tank when the engine stops

I finally removed the one on my return line, it would get thoroughly re-clogged just sitting overnight.  I next let it soak in some alcohol for a few days and it seems to have stopped reclogging, but I don't know if I'll ever trust it enough  to use it again. 

>Over a week, esp. if the car is parked facing uphill, this can suck all the
>fuel outof the pump body and supply line

>Been there

>The only time Ihave seen a retrn line check valve, I thimk was on a gasser,
>right at the tank where the return line attaches

My 85 Jetta has one, there's an access plate in the trunk.

>Sandy 

What model is that on, or is it more than one?
Thanks, hope you're feeling better.

Mike in NC