A second cap could mean a second water intrusion point. If it were me, I would pull the tank...you'll probably want to pull it to cut/weld the 2nd neck on it any how and they come out fast when empty....and take it here.
Stanton Radiator
10645 Beach Blvd, Stanton, CA 90680
Phone:
(714) 527-5894
I think Delbert still works there
They can clean it out and the paint will stay in tact. They did my Deuce radiator, built many cooling stacks for some of the repowers I did at Cummins, fixed the cooling packages that the engineers at Cummins designed all FUBAR, and they worked! And repaired many radiators for the place I worked for. They will even come pick it up...well, they used to anywho.
If you want help dropping it, call me. I work for beer!
THANK YOU WIll...
I have been experimenting and I have found that Alcohol cuts that nasty syrup that I still
believe are Asphaltenes. I ordered another 4" Aluminum filler neck and a locking non-vented
fuel cap and I have a welder bro who works for SpaceX that will weld it in for me.
Here is where I got the filler neck and locking non vented cap from;
4" NPSL Aluminum Neck – Boyd Welding LLC (fueltankparts.com)
( I have hence learned that Xylene and Toluene "should" cut that Syrup / Asphaltenes as well )
There is a baffle that splits the tank so there is no way to get to the front half of the tank.
I will be adding that clean out / filler neck. SEE PIC w/ baffle on left!
Back to Alcohol.
I dumped 1/2 a gallon of 70% Isopropyl Alcohol in the empty tank and SEALED the tank and walked away for 24 hours.
When I opened it, I saw the sludge / syrup had coagulated in the bottom of the tank and rolled off the sides!
Hey I am onto something here. Just the fumes seemed to make a reaction! There was some syrup on the chain
that hangs from the fuel cap and THAT syrup was breaking down too w/o touching the liquid alcohol.
(Note the Sun hit the tank making it hot, I am SURE that helped)
If I could get my paws down there I could scrap it up w/ a blade or putty
knife of sorts but it is impossible. My biceps are kinda big. So I fumbled around and did the stick w/ rag
on the end thing w/ little success. I drained down the alcohol getting more of that crap out and put in another
1/2 gallon of alcohol and walked away again. After 24hrs opened to same results. This time I dreamed
up dropping in a thick cotton type / bath towel type mop head w/ paracord tied to (for retrieval) and w/ the 1/2
gallon of alcohol still in it, using a piece of 1/2" EMT, I got busy scrubbing and it worked pretty darn good.
So I am onto to method of cleaning it's just tedious. I found some 99% Isopropyl Alcohol and ordered up
4 gallons of it. This is a TOUGH job... Even if I brought it to Stanton Radiator they can not gain access
to the front half of the tank because of that massive baffle.
If you guys have this problem I found that shortening the OE welded in filler neck w/ a 2.5"
metal cutting wheel was absolutely beneficial. Here are pics of the after and the pieces I fished
out of the tank. Use a sawzall to slice 2 times BEFORE you use the wheel so you can fish it out.
Also here is a pic of where I am on one side of the baffle to date. Originally the whole bottom
was VERY DARK BROWN w/ a THICK sludge that again I believe are Asphaltenes .
Hello to my new fuel treatments;
( LOL I have one of them too! )