Mellisa. IIRC you have a pre '85 ?

I installed a:

new (aftermarket) tank/seals filter, hoses, pump. Later on, I removed
the pre pump filter and installed a can type filter after pump. Pump
still cavitates from time to time. It's worse in hotter weather.

I have read that the older style tanks have a smaller ID outlet and
that this may cause cavitation.

I was also curious about differences between the OEM pump and
aftermarket offerings. Compared what I *think* was an original pump to
a newer one. No obvious differences that I could see.

One of these days I'll reinstall the old pump. It worked fine... was
trouble shooting me engine swap no-start.

Neil.

On 3/16/10, Melissa Mourkas <westywoman@mac.com> wrote:
> Nope.  Filter is clean.  All diagnostics have been completed.  New
> pump installed.  Cavitation continues.
>
> On Mar 16, 2010, at 9:22 AM, Mike Miller wrote:
>
>> Old tank = rust and crud which clog the filter and make the pump
>> work harder
>> to draw fuel.
>>
>> I think.
>>
>> Mike
>>
>>
>> On 3/16/10 9:04 AM, "Melissa Mourkas" <westywoman@MAC.COM> wrote:
>>
>>> On Mar 15, 2010, at 12:25 PM, miguel pacheco wrote:
>>>>
>>>> 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
>>>>
>>>
>>> Can you explain how the fuel tank is related to the noise?  Thanks!
>>>
>>> Melissa
>>> '84 Westy Honey Bee
>>> Sacramento, CA
>>> www.westywoman.com
>>
>>
>

--
Neil Nicholson '81 VanaJetta 2.0 "Jaco"

http://tubaneil.googlepages.com/

http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines