Fuel Damper ?

[rr]

Mike,

I can't answer your questions directly, however, I can quote from
the GM service manual:

"The fuel pulse dampener is installed between the fuel pump
and the fuel sender assembly feed pipe to dampen fuel pulsation
and reduce noise generated by the fuel pump. The fuel pulse
dampener is used with the roller vane fuel pumps only." (p.6C-4)

The roller pumps are only used for the port injection systems. The
GM TBI systems use a turbine pump that runs with a smooth
constant lower pressure, and no dampener.

HTH

BobR.


Mike (Perth, Western Australia) wrote:

> Hi chaps,
>
> Have a high pressure fuel pump which feeds into a 'damper' then into a fuel
> filter (all at the back of the car under the fuel tank) before going to
> front of car for fuel rail and pressure regulator...
>
> My questions are:-
>
> a.      Are these fuel dampers really necessary or will a legnth of
>         flexible compliant hose suffice ?
>
> b.      What is likely to happen if you remove the damper ?
>
> c.      Do they restrict the flow much ?
>         If so is it nonlienar ?
>
> Rgds
>
> Mike
>
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