The Diesel fuel may have something to do with the grommet breaking down
inside the tank when I thought it was on top somewhere. I used a light film
of grease to lube O ring and fairly easily locked in sending unit by hand
without a tool needed.

On Tue, Jun 22, 2021, 4:08 PM Dennis Haynes <d23haynes57@hotmail.com> wrote:

> I doubt a few grommet pieces is clogging the screen causing fuel
> starvation issues. I have had new tanks with fuel flow issues. For a while
> some were coming clogged with cardboard dust or something. I dealt with one
> that caused multiple tows and fuel pump failures. Ouch.
>
> Sometimes the opening for the gauge sender is not quite right.  I now
> pressure test before installing. Since the gauge sender rarely fails I have
> actually epoxied some in place.
>
> You also should the vapor control valve and make sure it is opening when
> the throttle is opened and that the carbon canister is not clogged.
>
> Dennis
>
>
> -----Original Message-----
> From: Vanagon Mailing List <vanagon@gerry.vanagon.com> On Behalf Of Ralph
> Meyermann
> Sent: Tuesday, June 22, 2021 4:49 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Fuel sending unit question.
>
>  Howdy Volks a while ago I replaced fuel tank and sending unit, I
> encountered a grommet issue I thought it was atop the tank but had another
> to replace it. FF 2 yrs I'm Having fuel starvation issues, rubber grommet
> pieces. Ordered another tank, seal kit and sending unit o ring. Fuel leaks
> from sending unit  after replacing the seal twice. Sending unit does not
> seem to be snug enough to the tank to seal properly. Thinking  I need to
> replace the sending unit as well due to the locking notches are chewed/out
> of whack.  Thanks for your help
>