You must be missing the tempature sensitive return valve thing. It open up to
bleed off a little of the pressure when the underhood temp gets too high. If
you are plumbed straight into the return you will never have enough fuel
pressure. I am not sure if the solexes came with one. Either block off the
return line or contacy me off list about a return valve. I've got a couple
that I have refurbed.
keith williams
>
> To List,
>
> My lack of power on hills issue is a lack of fuel pressure. I replaced
> fuel
> filter and had same problem. So I borrowed a fuel pressure gauge from a
> friend. Never having used a fuel presure gauge before, so I'm not sure I
> did it right. It had a T that the fuel lines would hook up to and the
> "vertical" part of the T went to the gauge. BTW, I'm not sure if this the
> same on all cars, but I have a return to the tank after fuel passes by the
> carbs. It's stock so I think everyone has one.
>
> Anyway, I hooked up pressure gauge just before the carbs (I have Solex's if
>
> that matter or not). My reading, assuming I did it right, was 0, that's
> right, zero. Well, maybe .5, but it was really low. So I undid that and
> hooked it up after the carbs and blocked the return to the tank. Reading
> that time was 2.5. Took car out for drive and problem was solved. I'm
> planning on hooking lines back up correctly (hooking fuel return back up)
> as
> you can tell that at idle, carbs are gettng too much fuel. So, my problem
> was no fuel pressure. Now I have two or three questions:
>
> 1. Which reading was right for fuel pressure, 0 or 2.5? Is it possilbe
> the
> 2.5 reading was due to the carbs sucking the fuel and not anything to do
> with the pump, i.e. pump isn't working?
>
> 2. I rebuilt fuel pump prior to install. I installed a new diaphram in
> pump and it seemed to work when I pumped it by hand prior to install, at
> least it sounded like it worked. Is it possible to install pump
> incorrectly? Does the "actuating arm" on the pump go above or below
> jackshaft. If I remember, pump install was pretty easy. Again, is it
> possible I installed it incorrectly or is it difficult to install the wrong
>
> way?
>
> 3. Assuming I hooked up pump right, how much pressure should I be getting?
>
> If I don't have enough pressure, I assume I need a new pump.
>
> Thanks for advice!!!
>
> Allen
> 1970 2000 that actually runs now.
/// datsun-roadsters@autox.team.net mailing list
/// Archives at http://www.team.net/archive
|