Fuel pump recommendations pls

[mrdoiron]

Gents (or any lovely Series-ladies),

My 2.25 69 Ser-IIa often sits for up to 2+months before I get to take her our for a drive, as I travel a lot and don't get around to giving her attention lately. As such, recently I find it won't fire after sitting a while, even after hitting the primer level several times - and only fires after I drop some fuel into the carb.

1. Is this normal, and possible indicating a bad fuel pump ? Once started it drives fine, and starts up fine next time so ling as it doesn't sit long.

2. I'm imagining an Electrical fuel pump would help life a bit - looking for inputs there... and if so, any recommended electrical file pumps ?

cheers, mike

[SafeAirOne]

I imagine all the fuel is evaporating and/or siphoning back to the tank during the lengthy no-run periods. You probably have to draw fuel all the way from the tank and fill up the carb bowl every few months when you start it, which is quite a bit more than 'several times' with the hand lever.

An electric pump would save you the time of refilling all the lines and bowl by cranking or hand-priming. I would think there'd be a check valve somewhere in the system, but there may not be, so you might consider installing one before the mechanical pump. Either that or go out and start it every few weeks.

In electric fuel pumps, I prefer the Facet cylindrical pumps. That's what the 2.6L 109's use for a boost pump. Lots of aviation and marine applications for these pumps as well. Mine's been going for almost 40 years now.

[disco2hse]

wot he said ^^^ +1

[mrdoiron]

Appreciated,
I think the 100-105 degree weather in Dallas is not helping on the evap front !

I will check into a check-valve - good point - and also the Facets

cheers, mike

I imagine all the fuel is evaporating and/or siphoning back to the tank during the lengthy no-run periods. You probably have to draw fuel all the way from the tank and fill up the carb bowl every few months when you start it, which is quite a bit more than 'several times' with the hand lever.

An electric pump would save you the time of refilling all the lines and bowl by cranking or hand-priming. I would think there'd be a check valve somewhere in the system, but there may not be, so you might consider installing one before the mechanical pump. Either that or go out and start it every few weeks.

In electric fuel pumps, I prefer the Facet cylindrical pumps. That's what the 2.6L 109's use for a boost pump. Lots of aviation and marine applications for these pumps as well. Mine's been going for almost 40 years now.

[mrdoiron]

What do you think of this Facet :

Specification Competition
Pump 40107
Voltage 12v
Earth Neg/Pos
Pressure (psi) 6.0-7.0
Flow (gallons/Hr) 25
Height in Metre 0.3
Thread size nptf 1/8th
Operating Temp. -31 to +55 Degrees C

P/No SS503

Appreciated,
I think the 100-105 degree weather in Dallas is not helping on the evap front !

I will check into a check-valve - good point - and also the Facets

cheers, mike

[mrdoiron]

although - not sure what psi the carb needs exactly, but this one may be too much ...

What do you think of this Facet :

Specification Competition
Pump 40107
Voltage 12v
Earth Neg/Pos
Pressure (psi) 6.0-7.0
Flow (gallons/Hr) 25
Height in Metre 0.3
Thread size nptf 1/8th
Operating Temp. -31 to +55 Degrees C

P/No SS503

[TedW]

I run a Carter 4070 electric pump and am very happy with it.

[SafeAirOne]

The type Facet Pump I was referring to is the cylindrical type, though it probably doesn't matter which kind you choose if you go that route.

As for pump specifics, you just need to find one that'll supply a sufficient volume of fuel at a psi that won't overcome the float valve in the carb and is 12volt and has the right size fittings.

Here's the chart for the cylindrical pumps; The cube pumps have their own chart on this site too, you just need to backtrack to find it:

http://www.facet-purolator.com/gold-flo.php

[mrdoiron]

very good, thanks.
So a 4-6psi range should suffice I think for the Weber, need to check if they come with specific fittings or a range in a kit...

appreciated, mike

[SafeAirOne]

Most of them seem to be 1/8" fittings. The exact specs for the different pumps are listed in the "OEM" pages, not the "Retail" pages:

http://www.facet-purolator.com/oem.php

(Select the style pump, then hit the "Click here for more information" link.)