I recently bought Doug Roe's book on Rochester Carbs. I have a 79 C20
with a Quadrajet and I am going to tackle a rebuild on it one of these
days. Anyway, he discusses fuel filters and to quote.
*A fuel filter should be used between the fuel pump and the carburetor.
Never use any kind of filter, other than a simple screen, on the suction
side of a fuel pump. This is true regardless of the type of fuel pump.
The usual screen at the tank outlet will work fine if it is clean.*
The idea is to keep the suction side of the pump as non-restrictive as
possible thus minimizing head loss and prevent the fuel from flashing
into vapor. He does, however, discuss this in the high performance
section of the book. Whether the volume of fuel is large enough to
create enough head loss for vapor lock to occur in an Ole Truck --who
knows?
Seems to me I have seen the glass bowl filter on the discharge of fuel
pumps of some Ole Trucks. Perhaps that was an option? My 56 has no
fuel filter at all.
Anyway, fuel for thought.
Mike
> ----------
> From: Bill Simmeth[SMTP:bill@merchantsoft.com]
> Reply To: Bill Simmeth
> Sent: Monday, April 26, 1999 9:47 AM
> To: 'Jeremy Eastman'
> Cc: 'oletrucks@autox.team.net'
> Subject: RE: [oletrucks] EUREKA! RE: Loose throttle rod, intake
> manifold l eak, et. al.
>
> No need to go "rod" !! You can easily add an in-line filter between
> the
> tank and the pump. If you're concerned about maintaining stock
> appearance, the filter can be installed along the frame rail or under
> the cab where it is hidden from view. I installed one in the rubber
> link between the tank outlet and the fuel line and it cured my
> constant
> carb fouling problem. NAPA has a variety of styles to choose from.
>
> Bill Simmeth
> 57 3200
> > -----Original Message-----
> > From: Jeremy Eastman [SMTP:jeastman@appliedtheory.com]
> > Sent: Monday, April 26, 1999 10:49 AM
> > To: oletrucks-digest@autox.team.net
> > Subject: [oletrucks] EUREKA! RE: Loose throttle rod, intake
> > manifold leak, et. al.
> >
> > It's enough to make me go "street rod" with my truck and put one of
> > those
> > new-fangled "gas filter" thingamajigs on while I'm at it.
> oletrucks is devoted to Chevy and GM trucks built between 1941 and
> 1959
>
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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