On 3/3/08, Michael Hart <mjhart853@yahoo.com> wrote:
>
> I just had my '87 Westy SMOG tested in the SF Bay Area (2/23)
> As far as I remember, it was the same test procedure & equipment as 2
> years ago.
> The gas cap was tested off the van using a pressure hose & attachment.
> There
> was no pressure test of the gas tank. The machine used seemed several
> years old.
> This was at a 'SMOG Test Only' center, which they seem to send our old
> vans to every time now.

Just did 3 of my vehicles in the past week. All required off tank test of
the cap. I used the same non-locking cap for all three cars just be be on
the safe side. Ran into this issue last year. My locking cap gasket was
supposed to be a leakerper their test equipment. So as a serial &
multi-Vanagon owner, I keep a good known (newer) cap sitting around for this
purpose. I swap out my daily cap just before smog check time. Hasn't failed
me yet.

On a separate note, I use the same cap for my Mercedes. Same cap, same fit.

BenT