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Where would be the best place to put an aftermarket fuel filter.........................before or after the fuel pump?

I put a new pump in it some months ago, and looking at it today it looks a cloudy greeny colour inside the bowl . I'm presuming thats from all the shit floating around?


Suffice to say, because of my uselessness, it's probably a job for the mechanic

Just spit ballin here, but if s*it is gettin into the pump, probably better to stop the crap before it gets there. So I would go before the pump. Either that or put one on each side of the pump, my bro used to do that in his LC Torry, didnt have any probs.
Dave.

Personally, I prefer before the pump as it helps to stop the crap getting to the pump and potentially causing pump problems over time.

The pump glass bowl area also acts as a sort of filter as it has a brass screen mesh up top and the botton bowl area for sediment and water to accumulate ( water is heavier than fuel ) .The glass bowl/pump should be cleaned out on a regular basis.

You can install a filter between pump and carb if space doesn't permit it between tank supply line end and fuel pump.Make sure you use good quality hose and clamps as the pump to carb side is pressured unlike the tank to pump side.

Thanks fella's.

I was thinking before the pump, as there would be less pressure plus you end up keeping the crap out of the pump..

Though as you said, space is a bit limited there

Cal wrote:Thanks fella's.

I was thinking before the pump, as there would be less pressure plus you end up keeping the crap out of the pump..

Though as you said, space is a bit limited there

they do fit there that's where i always put them, it's a bit of mucking around but simple

How much pressure are we talking between pump and carby?

Not a lot, can't remember exact figures ( only a few psi from memory ) but if a hose comes off or splits on the pressure side of the pump you will get copious amounts of petrol everywhere which can result in an engine fire which you don't want.

A faulty hose on the unpressured suction side ( tank side of the pump ) will make the pump suck air instaed of petrol and will leak gradually over the shed/garage floor.

I've always put them before the pump. Space is at a premium but can be done easily enough.

why is space such an issue putting a fuel filter before the pump? im guessing you guys are talking about putting it between where the hard line ends (near the steering box) and the fuel pump itself.
I'm thinking of doing the same thing for the grey motor, i wouldn't have thought space would be too much of an issue? we are talking about those little RYCO sort of filters that are a small cylinder?
Jimmy

The space issue is more a distance issue in that there is only approx 6 inches between the pump connection ( you will have to fit a brass barb connection on the pump) and the end of the steel fuel line from the tank.

Normal inline Ryco filters just fit ( approx 4 inches long end to end) and can be a pain in the arse to fit sometimes in the distance that there is to fit them.

A smaller filter yes would make fitment a little easier if you can get one.

righto i got ya now. i just don't want the fuel filter visible from the engine bay-i hate clutter! but don't have much choice short of cutting a section from the hard line underneath the car (and the filter would probably get smashed under there anyway)
cheers
Jimmy

You could fit one underneath and it would be OK if you fitted it near one of the floor braces or inner sill for protection and didn't take the car four wheel driving.

Or fit it inline closer to the tank perhaps??

mmm i guess so. just thought i could put it underneath somewher and just bend up a simple steel plate to protect it from rocks and stuff. i care too much about my cars to take them on dirt roads let alone 4wding! lol
Jimmy

Look around EL falcons had steel ones under the car so you may find a suitable one to use in that application.

DR, point noted will check out some shitboxes...er i mean falcons....
Jimmy