[Shotimes] Fuel Filter

[Paul Nimz]

I just went through this with my '97 suspecting the fuel pump.  I ended up
attaching a fuel pump pressure gauge to the windshield wiper and driving
around like this for a couple of days.

The fuel pressure regulator will reduce the pumps pressure.  It is operated by
engine vacuum.  So the higher the engine vacuum the lower the pressure.  WOT
will be the highest pressure and should be around 40 lbs.  Idle would be
around 35 lbs and coast closed throttle at high rpms will be the lowest but
still above 30 lbs.

I would think the WOT reading is the best indicator of the fuel pump's
condition.  If it is above 40 lbs there but too low at idle I would suspect
the fuel pressure regulator.  You can simulate WOT at idle conditions by
removing the vacuum line will the engine is running.


Paul


On 7/3/2005 1:59:33 AM, Frank "SHOrage" Costa (cryox@comcast.net) wrote:
> Is that at idle with vaccum disconnected or connected...WOT?
> Please inform as i certainly dont get 35psi at idle
>
>
> Frank Costa and the "Silver Bullet" 3.2 and Quaifed
> 89 Titanium Grey
> MODS-
> Jose SHOrt shifter
> Dynomax Catback With Super Turbo Mufflers
> Monroe Sensatrack Struts
> Moog Cargo Coils All Around
> Updated Front Swaybar Endlinks
> TPR Everywhere
> Solid Delrin Subframe Bushings
> Directional Italian SLicers
> Bridgestone HP50 Tires All Around
> Subframe Connectors
> 96 Brake Upgrade
> SHOnut Rear H Brace
>
> http://www.brothersofmetal.org/frank.html
>
>
> ----- Original Message -----
> From: "Ron Porter" <ronporter@prodigy.net>
> To: "ROBERT SCHIRMER" <1surferbum@msn.com>; "`V6 SHOtimes"
> <SHOtimes@autox.team.net>
> Sent: Sunday, July 03, 2005 12:35 AM
> Subject: Re: [Shotimes] Fuel Filter
>
>
> > Lifespans are indeterminate, as in anything from 50-250K, and some that
>
> > fall outside either end of that range.
> >
> > Getthe pressure checked, especially if the pump is a bit noisy. If it
> > still puts out at least 35 psi (around 40 is ideal), leave it alone.
> >
> > Ron Porter
> >
> > ROBERT SCHIRMER <1su