I believe the new part # is TS1020

try researching that

:thumb:

 

Bought one from Autozone not that long ago.
Had to get it out of warehouse but was only 2-3 days.

 

Another question before I carry on this discussion in the 5.7 section where it obviously belongs. GM I think re-thought the fuel strainer set-up several times during the 5.7 era. What I`m looking for, that I have no memory of, is an identification of a typical 6.2 fuel strainer mounting arrangement. The typical use of a TS1020 sock shows it mounted mostly horizontal, with a slight upturn on the check valve end. The suction pipe only 1/2 to 3/4" above the return line. The return line should be at, or very close to the bottom of tank.
If anyone can ID the picture below as being "typical" to early 6.2 applications or not, I would greatly appreciate it.
Photo was grabbed of the net, not mine

 

I've never had my 82 sending unit out but I've had my 94 and 82 park ave out. Park ave I cannot remember what it looked like. TS1020 is the part number. Its a 3/8 id and fits very snug on the pick up tube. May have to Emory cloth the tube. Rockauto.com has them 15 plus shipping. I have a new one sitting on shelf ill double check it. 1012 means visitor present so that's not it I'd remember that as 20 is location.

 

Thanks for that JCDiesel

Hard to believe no one can ID a typical fuel pick-up arrangement, but thanks for replying
So far I`ve uncovered at least 4 different strainers used since 78. It matters depending on which strainer you use to the positioning of the strainer in relationship to the pick up tube.Some are wicks, some are not

 

I would think that is a 5.7 pick IMO ... the reason for that is the return line is right by the pickup which was a problem at times, because it made air bubbles to be pulled in with the fuel.


:bigglasse

 

I can guarantee you the pic posted is NOT from any 5.7 application.

Actually, the pic was provided to me from ACDelco as a typical arrangement at the pick-up and return. 80 thru 84 5.7 has the pick-up tube much higher, and the sock sits at about a 45 degree angle with the valve in the sock just above the water in fuel probe. 6.2`s sock laid much more horizontal with the suction valve barely raised off the bottom of the tank. According to Delco, the original sock to the 5.7 were "wick socks" 130 micron, SARAN material
The 6.2 socks were more of a sponge strainer, 90 micron, polyamide material.
So a 5.7 pick up arrangement with a 1020 strainer installed at a 45 degree angle so that one end of the strainer would rest on the bottom of the tank, the vehicle would run out of fuel at 1/8 or better of fuel because the strainer is a strainer, not a wick .

if anyone is at all interested, I have pictures of the differences. But there are concerns of using a 1020 on a pick up tube not positioned for it`s makeup

How in the world does the return line inject AIR in to the tank? IF it is, there`s a problem somewhere else.
I`ve owned several 5.7`s starting in 78, never, ever heard of such a thing. All the return lines are routed close to the pick up tube, reason being is cold weather warming of the strainer to protect from clouding/waxing

 

The simple act of the fuel poring back in while below a 1/4 tank, will aerate the fuel, which is sucked backup by the pickup.


:bigglasse

 

I don`t know the procedure you use for removing water from the tank, but the normal, accepted procedure is to draw the fuel thru the RETURN line since it extends to the BOTTOM of the tank, not at 1/4 level. The sender I pulled today actually left a mark in the plastic on the floor of the anti-slosh reservoir. A little mis-calculation in length by GM I guess

Long story short, no air enters the tank via the return, can`t happen, no way, no how
Unless you got bigger problems

 

Just in case theirs any confusion, the LARGE 3/8" tube is supply, strainer attaches here.
The smaller 1/4" tube is the return, extends to the very BOTTOM of the tank, also aids in purging water from tank