Thought I would give a write up on a solution for the NLA fuel tank pickup tube screen P/N G037-42-113A used on the GSL-SE.
Here is an optional replacement I have found that has worked now for several years with no problems. It does require trimming the pickup tube .125" or could be bent along with adding a skim layer of JB weld to build up the thickness of the tube for a snug fit.

Parts needed: Jaguar fuel pickup filter P/N CBC5649 used on 1969-1987 Jaguar XJ6 XJ12 & 1976-1992 XJS models.






fUG037-42-113A G0G03GG037-42-113A7-42-1G037-42-113A13A37-42-113A

 

The jaguar filter sits at .550" needing .125" of the tube to be removed for the bottom of the filter to sit in the same position as the OEM filter at .425" from the bottom of the return tube. The reason is the jaguar filter has a taller internal shelf than the Mazda filter.


Need to remove .125 of material to make the Jaguar filter fit properly


Original filter sits at .425" from the bottom of the return tube.

 

Where the top of the jaguar filter meets the tube a thin layer of JB is applied, once dry its sanded for a snug fit when the Jaguar filter is installed.



Here is the final product ready for install.



Another view of the filter ready for install.

The cork gasket for fuel pickup tube is P/N FA54-42-182

 

Also don't forget to check the little filter on the fuel pump inside the inlet tube for debris as that tends to get plugged when the pickup tube screen fails and causes fuel pressure issues as well.

 

To further the options, I'm going to Rube Goldberg a strainer for gas generators. The volume (therefore surface area) of the cylinder seems similar. It's probably not quite as sturdy as the OEM, but ...
My concerns are 1) matching mesh aperture size (or not) - how finicky could that be? 2) sturdiness. The OEM part has ribs that stick outward about 1/8". This part looks like 1/16".
I'll cut a circular piece of plastic (ABS or nylon) with some perforations to sit inside it on the bottom so the fuel pipe doesn't puncture the bottom. Then I'll have a lid 3D printed that can sort of snap onto the top, with 6 tabs dropping down that I can then zip-tie it. Anyways, that's the plan. If it works, I'll follow up on this.

 

The volume of mesh isn't a problem with the Jaguar filter used. Most socks are smaller than what Mazda used on the GSL-SE.

 

I bought one of the generac filters to see how it might fit, The mesh size seems to be bigger, and from what I've gleaned from the internet, in-tank strainers should be 100 micron or more. My guess here is that the generac generators aren't fuel-injected, like an auto engine, so the mesh size doesn't need to be as fine.
And to your point, if it works for a Jag....

 

OK -- here's my take on the in-tank filter:

1. My car sat motionless for 30 years, with a nearly full fuel tank, which created a varnish-like coating inside the tank that flakes off -- especially if you drive aggressively and slosh fuel around inside the tank. I could see many of these little flakes inside the tank when I dropped it.
2, If you have a fine in-tank filter, it could (in theory) become restricted by those contaminants piled up around the filter . . . and dropping the tank is time-consuming.
3. The in-line filter between the fuel tank and the fuel pump is relatively easy to change.

Given these points, my strategy is to use a very coarse in-tank filter, which should pass most everything to the in-line filter. To avoid frequent in-line filter changes, I'm using a Mahle KL-21, which has significantly more filter area than the OEM RX-7 filter. I went a little crazy with stainless parts, but consider the concept, not the execution.

 

Hey Elwood,
That's a pretty ambitious fix you did! I extended my search to look at external filters, thinking that they would be easy to clean out if there was a problem. In that setup, I'm thinking that an "in-tank" filter won't be needed - the exterior filter is all you need as long as the screen size is the same. From what I can gather, 100 micron is the size. I found a disassemble-able filter for external mount:

Earl's Performance Vapor Guard Fuel Filters 731066ERL Filter Flows 125 GPH at 4.1 PSI (Free Flow) & 88 GPH at 61.4 PSI , size OAL 4.5"×1"Ø
https://www.summitracing.com/parts/ear-731066erl $22 (Available in various micron-rated models, i.e. 10 or 100 microns)
https://business.walmart.com/ip/Earl...lter/985825049
Clamps will be needed.

 

The fuel pickup screen is there to keep junk from going thru the fuel pump as the fuel filter is on the pressure side after the pump. External pumps like this one have a hard time picking up gas thru a fuel filter if you put one inline before the fuel pump, it will shorten its lifespan, not something you want on this pump.

 

You are partially correct.
There is a fine screen filter AFTER the pump, but there is also a larger screen one in the tank, BEFORE the pump. If you can't get a replacement for that inside the tank (Tripple 7's has his Jag retrofit) then it will have to be in-line, between the tank and the pump. The one I posted seems to have a good flow rate, so I don't think it would burn out the pump. (I invite debate on that, but provide flow stats please). And it would be easy to check on it, clean it out if it's external.

 

Yes, I also considered running without an in-tank screen, but I was concerned that something large enough to plug the pickup tube might find it's way into the tank (like a pebble). It's also worth noting that I'm using my large filter before the fuel pump. I generally prefer OEM parts -- they're manufacturer tested for durability and quality, and they're always available.

 

On review, the Earl's filter may not be a good choice on a GSL-SE because it's fuel hose is 1/2", not (Earl's) 3/8". Back to the googling!

 

Here's a solid OEM-style filter with a reputable brand on it. Relatively large filter area with a stainless housing. No messing around with trying to clean it -- just replace when necessary --> https://www.summitracing.com/parts/w...3x8A8z2-fxK8MV

 

Yes, yes and yes, but the inlet/outlets are 3/8" (same as what I found) so I'm hesitant to use it.
But I really appreciate your advice on keeping an in-tank screen on the pick-up tube. With 2 elbows before an external filter, there would be 3 opportunities for a large particle to clog the tube.