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Hi, been a while since I took this off, ready to put back onto the car. Have a holly electric fuel pump so is the filter installed on the pump inlet between the tank and pump inlet...or on the discharge of the pump. The fileter is a canister type filter
Its a 69 coupe used for autocrose/roadracing. thanks
tom
Last edited by C4TOMCAT; May 26, 2009 at 10:30 AM.
Reason: added info
G'day,
Most people fit the filter on the inlet side of the pump, so as to protect the pump from debris. Putting it on the outlet side exposes the pump to debris from the fuel tank and premature failure. Is that what you want?
Also, do you have an oil pressure activated cut-out switch for the fuel pump? The last thing you need is to crash the car, stall the engine and have the fuel pump still operating.
Pretty well all types of fluid pumps for systems that need filtered fluid use a inlet screen of appropriate mesh screen fine enough to protect the pump and course enough to not restrict inlet flow and a finer filter on the pressure side to protect the complete system.
So typically for fi (requires better filtering than carbs) a 40 micron inlet screen and a 10 micron outlet filter, both large enough to handle the flow needed.
Thanks all, it was on the inlet originally but after two days of trying to get the pump to pump, substituting another pump, all to no avail, I took it out, went direct with only the carb filter and it pumps fine. So, I need to check the filter assembly for leaks as I could never get more than 1.5-2.5 psi at the carb gauge. I appreciate all the replys...wanted to just do a sanity check. Yes there is a low pressure switch in series with the fuel pump. thanks all, tom
Thanks all, it was on the inlet originally but after two days of trying to get the pump to pump, substituting another pump, all to no avail, I took it out, went direct with only the carb filter and it pumps fine. So, I need to check the filter assembly for leaks as I could never get more than 1.5-2.5 psi at the carb gauge. I appreciate all the replys...wanted to just do a sanity check. Yes there is a low pressure switch in series with the fuel pump. thanks all, tom