Date: Mon, 22 Jul 2013 20:39:48 -0700
Reply-To: Don Hanson <dhanson928@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Don Hanson <dhanson928@GMAIL.COM>
Subject: Re: Fuel pump noise? Fuel filters.
In-Reply-To: <CAHTkEuKs5aoDbSK4w3m+rOpZQNrx00v6vixJfpVRDiSP3noiOA@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Ooops, typo....a Four hundred twenty lb motorcycle, not 320..
On Mon, Jul 22, 2013 at 8:37 PM, Don Hanson <dhanson928@gmail.com> wrote:
> I don't think you are right, Dennis. The motorcycle that filter was
> used on has more HP than the Vanagons or my inline Jetta motor. The inlet
> and outlet are the same size as the post-pump filterr.. The gas flow has
> to be similar between a 900cc high-performance motorbike at 32O lbs and a
> ~2000cc vehicle weighing 4000lbs.
>
> The larger diameter of the moto-filter cannister leads me to guess there
> is more surface area in the filter element, hence less restriction than
> those tiny little square filters some Vanagons have, especially as it does
> it's job and collects crud on the element....... It must have about 10
> times the internal volume, compared to the Vanagon one...again guessing on
> the math.
>
> Whatever...it will likely filter out dead mice from the tank, or rust or
> crap from Mexican Pemex pumps or other possible 'pump busters'...Seems to
> work for me, and I have had plenty of experience with poor gasoline,
> filters, motorbikes, etc..
>
> When I change out this one, coming due this fall, I will probably just
> find one in one of the racers supply catalogs or online.. Fuel pumps are
> pricey...filters are pretty cheap.. I don't like the plastic ones, being
> exposed to road debris as they are on the Vanagon...
>
> I agree on checking the pump mounting..make sure there is good
> isolation from the frame, etc. And....remember, sound travels very well
> indeed through liquid...so isolating ( with some sort of rubber mounting )
> your post-pump filter might help with the noisy FP also...
>
>
> On Mon, Jul 22, 2013 at 5:57 PM, Dennis Haynes <d23haynes57@hotmail.com>wrote:
>
>> The size of a filter on the outside has little influence on what can be on
>> the inside. The original pre-pump filter has a lot of filter material
>> crammed in there designed to handle the flow (liters per minute) that the
>> fuel pump can move. I doubt a filter designed for the carburetor on that
>> motor cycle is designed to handle the fuel in its lifetime that the
>> Vanagon
>> pump moves in an hour. As it loads up and starts to restrict flow you
>> won't
>> even know because the element will rip away in there somewhere so the fuel
>> will just continue to flow.
>>
>> Dennis
>>
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>> Of
>> Don Hanson
>> Sent: Monday, July 22, 2013 12:48 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Re: Fuel pump noise?
>>
>> On the subject of fuel pumps, filters, noisy operation, etc.
>>
>> Here's a handy hint. Golf Tees are good fuel line stoppers for when
>> you
>> must work around the fuel system. I keep some in my tool box and just
>> push
>> one into any line that I have to temporarily disconnect.
>>
>> I installed a large pre-pump filter into my system. It came from a
>> Triumph motorcycle and is actually larger than the standard VW post pump
>> filter.. I see no reason to chance getting dirt from the tank or various
>> filling stations into my fuel pump, so the pre-pump filter makes sense to
>> me...thought the one VW uses on some models, that seems too small. Find
>> and
>> install a larger one, keep your FP happy.. Can't hurt.
>>
>>
>> On Mon, Jul 22, 2013 at 9:07 AM, neil n <musomuso@gmail.com> wrote:
>>
>> > Was the noise always there or did it recently appear?
>> >
>> > I've been living with an intermittent pump noise for some time now.
>> > Pump, tank, etc. were new at time of tank install and engine swap, and
>> > the noise was apparent soon after that. Deleting the pre pump filter
>> > and installing a post pump filter did not seem to change this. I'm
>> > running the older style tank with smaller outlet.
>> >
>> > Not saying your pump won't fail, but if it were me, I'd just keep an
>> > ear on it and note if there's an abrupt change in noise levels.
>> >
>> > Neil.
>> >
>> > On Mon, Jul 22, 2013 at 4:08 AM, Bob Anderson
>> > <ROBERTANDERSON294@comcast.net> wrote:
>> >
>> > > Hello All,
>> > > Question regarding my fuel pump. When engine is running, I'm
>> > > getting a
>> > continuous noise from the pump, like a noisy dremel.
>> > > When I turn on the key, I hear the normal pump sound, but then once
>> > > I
>> > start the engine the noisy dremel sound starts and is continuous.
>> > > Time for a new pump?
>> > > Thanks,
>> > > Bob Anderson
>> > > '86 Vanagon
>> > > Wilmington, MA
>> >
>> >
>> >
>> > --
>> > Neil n
>> >
>> > Blog: tubaneil.blogspot.ca
>> >
>> > '88 Westy http://tinyurl.com/c8rlw6p
>> >
>> > '81 VanaJetta 2.0 "Jaco" http://tubaneil.googlepages.com/
>> >
>> > Vanagon VAG Gas inline-VR Engine Swap Group:
>> >
>> > http://tinyurl.com/d7gd5ej
>> >
>>
>
>
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