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Looks like a few people replied to me and not to the list, because my GMail sucks. So, FYI... and to keep the discussion going... Per Lingren says: > Having the filter on the suction side of the pump is certainly a good > idea, and is also how VW/Audi has done it on newer cars, with the same > objective; keeping debris out of the pump. James Montebello says: > Yes. Putting it on the suction side means you're > restricting fuel flow to the pump, possibly causing > starvation issues, esp. as the tank gets close to > empty. All that's supplying the pump is gravity and > the mass of the fuel column above the tank outlet. > The pump is really very robust, and it's hard to > damage it with anything that's small enough to go > through the lines and the sock inside the tank. > Unless someone pours small gravel into the tank, > you're very unlikely to damage the pump with > unfiltered fuel. Putting it on the pressure side > means the pump is pushing the fuel through the filter, > so there's no restriction problems. > > However, clogging fuel injectors is relatively easy, > and even a tiny bit of rust flake from the inside of > the tank can make an injector stick. I'd remove that > Purolator filter ASAP and replace it with a VW fuel > injection filter. First, the VW filter is rated for > the pressure side of the pump. Second, from personal > experience I can tell you that clear filter isn't > sufficient for filtering out small particles. I had > one of those on a Weber-equipped car and was > constantly plugging idle jets from junk in the fuel > tank. I fit a VW FI filter and the idle jet problem > vanished. > > I'd also run the filter as close to the injectors as > possible. If the fuel line begins to deteriorate > internally, you'll catch that cruft before it clogs > anything. > > > --- Constantino Tobio <ctobio@gmail.com> wrote: > > > A lot of folks recommend putting the fuel filter on > > the suction side > > of the fuel pump as opposed to the discharge side. > > The rationale being > > that it keeps gunk from getting in the fuel pump. I > > personally like > > this idea. Can anyone come up with a negative? > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - now with 250MB free storage. Learn more. > http://info.mail.yahoo.com/mail_250 > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ List info at http://www.vwtype3.org/list | mailto:gregm@vwtype3.org ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~