Large out line to carb, small out line returns to tank.
You can block it if your car doesn't have a return line.
Harder" <corey@c...> wrote:
> We got the engine runnung, (by by-pasasing the fuel pump) but the
fuel pump obviously wasn't working, and I couldn't find any good
reference material to tell me where the lines go.
> ----- Original Message -----
> From: bill lutzius
> To: Cadillac_Performance_Association@yahoogroups.com
> Sent: Friday, August 15, 2003 7:55 PM
> Subject: Re: [Cadillac_Performance_Association] Cadillac 472
> At the fuel pump you have a line from the gas
> tank.Then a line up to the carb.Look down the carb and
> move the linkage,do you see gas shoot out?If so then
> you have gas.I would change your points and condenser
> to start with.Most times when a points car don,t start
> its the condenser.Get a cheap tach and dwell from a
> auto parts store and set the dwell to 30 degrees.
> --- hardcore67114 <corey@c...> wrote:
> > I have a 472, and was getting it to run. I don't
> > understand how the
> > fuel pump works? Is one line suppose to run to
> > vaccuumm on the carb.
> > I tried that, and it just sucked gas. I'm assuming
> > it's the back side
> > of a diaphram, and that the diaphram is cracked,
> > allowing gas to
> > enter vaccuumm hose. If I'm way off please let me
> > know.
> > Corey
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