Fuel Filters.

[burgundyben]

Last weekend I changed an injector pump. Whilst doing it I changed the fuel filter on the engine, I have changed the prefilters earlier in the year. I was amazed to find a load, about a teaspoon full, of gritty debris in the bottom of the filter bowl. its all cleaned out now, what I dont undestand is how it got past the pre filter?

Oh well, I know that all is clean and good. Just need to fix the fuel line and bleed her through and its up up and away.

<hr width=100% size=1>Sod the Healey - I think I'll buy an E-Type.

 

[EME]

Ben, I may not be the most accomplished engineer in the World but possibly ' the gritty substance' came from somewhere between the prefilter and the fuel filter? So what is knackered/rusted in between.?

<hr width=100% size=1><font color=blue>I am WHAT I say I am</font color=blue>

 

[robind]

Hi! I suggest that you check the porosity "size" of your pre filters against your main ones to assess whether or not your pre filters are too porous.
Regards
Rob

<hr width=100% size=1><A target="_blank" HREF=http://www.rejuvanu.com>RejuVanu</A>

 

[Baltimore_Bill]

are the pre-filters just water separators?



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[BarryH]

Have a look at Purelator Filters. They have 50% more surface area than others with a finer filter medium. Upshot is that they'll still have the same flow rate but filter out the finer stuff as well.
You'll notice the difference after a while. Your engine filters will be cleaner and your pre filters will stop more of the crap.
Where on the engine are your filters, before or after the lift pump?

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