Hmm, the only time I can hear the pump on either van (aside from the Ignition on test cycle) is when the fuel filter is clogged, making the pump sound like a laminate trimmer working on Arborite. Both vans have the stock mounts.
On Mon, Mar 15, 2010 at 12:43 PM, neil n <musomuso@gmail.com> wrote: > On 3/15/10, miguel pacheco <mundopacheco@gmail.com> wrote: > > Insulating the pump brings up a couple of thoughts. The first is the > > obvious heat issue. These pumps are cooled by the fuel they move and > > must be, to some extent, by air blowing across the exterior surface. > > If you've insulated the pump, will the fuel cool it sufficiently? > > Won't this cause it to run hot and result in failure? The second > > thought is that if you can hear the pump, there's something wrong. > > Usually, this means that it is fuel starved or it's getting ready to > > fail. In short, it may be useful to be able to hear the pump, should > > it ever start making noise. > > If the pump is properly installed and it is making noise, it's > > probably fuel starved. At 20+ years old, you can look to the fuel > > tank as the cause. > > Miguel > > > I was thinking of pump cooling not long ago. During my last trip > through hotter climes, pump was getting louder. In particular noticed > this after refueling, restarted, at idle. Pump noisier than normal. > Likely due to heat affecting fuel in tank, (contributing to pump > cavitation?) but I wondered if pump itself was being affected by > ambient temps. Pump is almost new but fuel tank has the smaller ID > outlet. This doesn't help. > > In terms of cooling, I wondered if having the belly pan off would help. > > As per Davids comment, he beat me to the punch. (my browser quite > before I could post!) > > Could one use a Bosal DV type exhaust hanger (isolater)? > > Cheap. > > Neil. > > -- > Neil Nicholson '81 VanaJetta 2.0 "Jaco" > > http://tubaneil.googlepages.com/ > > > http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines >
-- Jake 1984 Vanagon GL 1986 Westy Weekender "Dixie" Crescent Beach, BC www.thebassspa.com www.crescentbeachguitar.com http://subyjake.googlepages.com/mydixiedarlin%27 |
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