<VV> Fuel pump question - Part 2
Hugo Miller
hugo at aruncoaches.co.uk
Tue Jun 4 04:49:23 EDT 2019
I'm a great fan of the old British S.U. fuel pumps - a
solenoid-operated diaphragm system.They just tick away quietly and solve
all the problems of vaporisation and priming. But S.U. make two types of
pump; one the pulls and one that pushes. I have no idea how the valves
differ, but obviously the 'pull' type can be placed above the fuel level
where it will will happily suck the fuel up from the tank below. One of
my favorite British cars, the Morris Minor, uses this type of pump
mounted on the firewall. The only thing that ever goes wrong is that
they might stick when the points get dirsty, in which event you just
stop, lift the hood, give the pump a little tap and it will go "tick
tick tick" again ;) I fit this type of pump to all my cars.
On 2019-06-04 01:37, Bryan Blackwell via VirtualVairs wrote:
> All pumps prefer to push rather than pull. An electric pump will
> pull through an intact, unobstructed line just fine, I run mine on
> the
> trans crossmember without issue.
>
> I'd suggest replacing the two rubber hoses and blowing the hard line
> clear.
>
> --Bryan
>
>> On Jun 3, 2019, at 1:21 AM, Charles Lee via VirtualVairs
>> <virtualvairs at corvair.org <mailto:virtualvairs at corvair.org>> wrote:
>>
>> However, I’m told that the electric pumps “push” fuel and might not
>> “pull” fuel from the front to back?
>>
>>
>>
>> If that’s true, the fuel line MIGHT be OK, just need to “push” fuel
>> (or air) through from the tank end, to test or force obstruction out?
>>
>
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