DTSFab.com (Desert, Trail and Sand)
Automotive Powered Off Road (AKA: Buggys, Jeeps, Trucks, Etc,Etc. ) => Motor and Drivetrain => Topic started by: Yummi on July 18, 2010, 07:01:51 AM
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I have a fule filter on the pressure side of the fuel pump - mounted in a well, crappy fashion with zip ties. I also have one before the pump. No real issues there.
After the upcoming night ride, I am planing on pulling the motor and having the transmission gone through just so I know it is all fresh. Figure that would be a good time to rework the silly filter.
Will this filter work after the pump? Figure it is about 90#'s of pressure or so. Also, how the heck do you tell what size AN fitting you have? To mount this in a proper fashion it will require two 90's and some longer fuel line. (I will have to turn it 90* from current to have filter mount to frame rail)
If it helps, it appears to be an 11/16" fitting, although for the life of me I cannot find an 11/16" open end wrench.
http://www.speedwaymotors.com/6-Inch-Aluminum-Fuel-Filter-Stainless-Element,1667.html?parentDisplayId=1657 (http://www.speedwaymotors.com/6-Inch-Aluminum-Fuel-Filter-Stainless-Element,1667.html?parentDisplayId=1657)
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Wait, did some digging - might have answered my own questions..... Looks like -6
(https://www.speedwaymotors.com/images/charts/Sizing-FittingThread.gif)
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IMO ,a good paper element type filter such as you linked ,used BEFORE the pump is the only filter needed. A filter after the pump is ,IMO, useless.
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IMO ,a good paper element type filter such as you linked ,used BEFORE the pump is the only filter needed. A filter after the pump is ,IMO, useless.
I am hearing that you should only use a screen filter before the pump. That a paper fuel filter will suck out and plug the pump and injectors. Just something I read on another site. and no I do not believe everything that I read or hear. kick Just saying
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I've never had any issue in 30+ years. Just don't use a junk element.
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I mean IF it's going to suck shit through/from the filter it will just as easily(actually more easily as a pump is more efficient at pumping than pulling) push it through to the injectors. I see no difference except that a filter placed before the pump will protect the pump where a screen affords almost no pump protection.
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I am hearing that you should only use a screen filter before the pump. That a paper fuel filter will suck out and plug the pump and injectors. Just something I read on another site. and no I do not believe everything that I read or hear. kick Just saying
Might be something to that Fast. As most any late model car has screen before fuel pump and filter on the pressure side.
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keep the rocks out of your tank guys ;D ;D and also the pickup should not at the very bottom either. Need somewhere for any small amount of condensation/water to pool without entering fuel system.
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I know the "correct" place for a paper filter is after the pump. However I have had small debris get past screen and lock up a pump. After that I used a paper element filter before the pump with no ill effects. AND no more locked up pumps either. Only reason I know of for not using a paper filter before the pump is due to pressure drop that in a high demand application COULD cause vapor locking. For most of us tho i doubt that will ever be the case unless we use a dinky too small pump in the first place. Just my 2 cents.