What about the vacuum line from reg to air intake distributor?
Fuel pressure regulator diphragms do fail.

If yours is failing/failed, and the vacuum hose is too, is it possible that
fuel might leak out at the connection or from the hose itself?

If not, and it were me, then I'd just replace the suspect fuel hoses and
clamps.

Neil.

On Dec 5, 2007 11:32 AM, Ben S <phlogiston420@gmail.com> wrote:

> hi all,
>
> over the last few weeks, of the couple dozen times i've opened up the
> engine compartment after running recently, i have seen (and smelled)
> fuel residue on the pressure regulator maybe twice.  for the last few
> days, i have gone out each evening, driven around a little and
> rechecked and have not been able to re-create the problem.  i replaced
> all the supply fuel hoses about 3 years ago and they still seem in
> great shape.  no amount of wiggling the hoses with the engine on will
> cause leakage.  is it possible that the regulator itself could be
> leaking?  has anyone ever seen or heard of this happening?
> considering that it's a $100 part, i'd hate to replace it on
> speculation, but i can't figure out what else could be causing this.
> leaking fuel is scary as hell.
>
> Ben.
>

--
Neil Nicholson. 1981 Air Cooled Westfalia -
"Jaco"  (Bustorius) http://web.mac.com/tubaneil

Engine swap beginings: http://musomuso.googlepages.com/home