On my 74 GTV I just changed the filter cartridge and I only had one spring under the filter.

 

Did your spring resemble any of the two I have? They are pretty different in size....Which one is right?

 

There is a chance you guys are talking about different filter housings. 74 and older had one style with the fuel pressure bypass in the filter head, 75 and newer had a better filter element and the fuel pressure bypass in the three port pump under the car at the back. No us alfettas older that 1975.

 

Well looks like I have the 2 port version. Taking a closer look at how it works, there cannot be a top spring as this would impede the rubber o ring on the filter element to seal against the top cover of the housing. So looks like I was defeating the purpose of the filter by having that top spring create a gap and letting unfiltered fuel get into the outlet port. Pretty sure I had the smaller spring up top. So I am assuming the large spring is correct for the bottom? Anyone familiar with that small spring?

 

As I recall it was more like the big spring with no washer but that was last week so i might not trust my memory

 

Big spring on the bottom. Nothing else.

 

Got it thanks. Its going to drive me nuts trying to figure out where that smaller spring came from. Does it look familiar?

 

the smaller spring might be for the SPICA pump oil filter; or maybe for the glass bowl FISPA unit on a carbed car?