OK... I know you guys are chomping at the bit, for some movement on this thread. Between everything I have going on at the moment, It's been hard to find the time.
So here's a little tease.... using the iFJF filter as the example.
It looks like a quality filter. Nice paint job, nice box. But before we look inside, lets talk about the outside.
Anyone ever wonder why the Duramax filters have the shape that they do? It has to do with the dual element construction and the water separating function they are supposed
As you will see, the bottom of the outer element has a oring that seals on the I.D. of the small diameter on the bottom of the can. This forces the fuel thru the filter element but allows the water to drop out of the inner part of the outer element and settle down in the sump portion of the filter. If you need more explanation on this,let me know. This will come up a few times...
So, I pop this thing open, and it's a clone of the Racor... cool right! Wrong. It's a clone, with a few very disturbing flaws.
Here is a side by side of how the element sits in relation to the can.
The oring on the smaller portion of the outer element seals in the I.D. of the smaller portion of the can.... got it?
Well, it dosent. It does not touch the can at ALL! Its about 1/16" of a inch too small to make any contact, at any point.
The fuel is free to bypass the outer element at will, 100% of the time!
The fit is so poor, iFJF squirts a bunch of hot glue into the void, to keep the outer element from rattling.
Remember some reports of rattling filters. This is where it's coming from. I would strongly suggest returning ANY filter that rattles no matter the brand and get your money back!!
So, if the outer element is non functioning, this is all thats protecting the very expensive fuel injection system, the inner element.
In a real Racor, this is the secondary "polishing" filter and water remover. In the iFJF it's the ONLY functioning filter and it's water removal capability is very suspect. Many of you have started you have never seen water drain out of your filters. Many of you probably run a different brand filter too. If you think this sh!t construction is unique to iFJF you are sadly mistaken as you will see as the filter shootout unfolds.
Here is the promise from iFJF.
Whenever you see micron numbers without
efficiency numbers,RUN AWAY! They are already lying and deceiving you.