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Re: [T3] FI fuel pump problems


On 3 Oct 2005 at 13:11, Constantino Tobio wrote:

> So, would having an inline check valve be a good substitute over a
> primer switch? Personally, I would rather go this route than monkey with
> my electricals if a suitable check valve exists. Opinions?

I really don't think they are substitutes for each other. If you're having 
trouble you probably need both. I sell a primer switch which requires NO 
alterations to the electrical system; you just wire it up to existing 
terminals.

> Is it possible that the system slowly depressurizes because of the age
> of the check valve internals in the pump?

All we know is that the system leaks down. I don't really know where the leaks 
are. It's possible that the only leak is of air INTO the system as the system 
cools back down. The fuel may all be forced back into the tank, in one 
direction or the other as the engine heat boils and expands it after shutdown.

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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