Question about aftermarket external fuel filters.....
09-26-2002, 05:42 PM
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Question about aftermarket external fuel filters..... Can someone explain to me why you need an expensive stainless steel element on the sunction side of a fuel pump? There is hardly any pressure on the sunction side....and i just dont see the logic?
someone explain it to me please <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
someone explain it to me please <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
10-01-2002, 12:36 AM
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Re: Question about aftermarket external fuel filters..... Thanks for the TTT...i friend gave me a good explanation here:
Weldon pumps are gravity fed,they can`t suck fuel very well.The paper filter is way too restrictive to let gas pass thru it with no pressure to push it. Bob from Weldon told me to use a numerically higher than 100 micron filter before it (metal mesh is around 240 mic.)and a 10 micron filter after it.It has plenty of stregnth push thru the paper. I had a paper filter before it and would lose fuel pressure after about an hour driving around as it would starve the pump.Since switching filters,no more pressure drop and it isn`t as noisy.One of these days I`ll get the voltage controller to slow down the pump while cruising since the engine doesn`t need that much volume under those conditions
Myself,Tory and Don B. have our pumps/filters set up as per Bob at Weldon.
Weldon pumps are gravity fed,they can`t suck fuel very well.The paper filter is way too restrictive to let gas pass thru it with no pressure to push it. Bob from Weldon told me to use a numerically higher than 100 micron filter before it (metal mesh is around 240 mic.)and a 10 micron filter after it.It has plenty of stregnth push thru the paper. I had a paper filter before it and would lose fuel pressure after about an hour driving around as it would starve the pump.Since switching filters,no more pressure drop and it isn`t as noisy.One of these days I`ll get the voltage controller to slow down the pump while cruising since the engine doesn`t need that much volume under those conditions
Myself,Tory and Don B. have our pumps/filters set up as per Bob at Weldon.
