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Username Post: Info needed on fuel tank pickup tube        (Topic#238241)
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-20-10 10:17 PM - Post#1883733    

Soooooo, you guys have answered my first two questions flawlessly!! Thank you!!!

Here's the details:
Newly acquired '52 that sat for 15 years.
Drained tank and put in 12 gallons of gas. (gauge not working)
Drove 10 - 20 miles and it ran out of gas.
Took 9.5 gallons to fill up.
Is the pick-up tube visible from the sending unit hole? Do they rot out?
Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
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2blu52 
"13th Year" Silver Supporting Member
Posts: 14094

Age: 80
Loc: Montana
Reg: 03-12-02
03-21-10 06:10 AM - Post#1883783    
    In response to Alaskan52

What engine does the car have, is this a V-8 transplant? There is no way a 216 could use that much fuel in that short distance. My guess is that you have a serious engine problem. But to get to the original question, the pickup tube on a stock gas tank in a 52 is located at the bottom center of the tank, the tank should hold about 16 gallons. There could be rust involved if the tank had old lfuel in it and sat for a long time. Condensation would occur and the water would settle to the bottom of the tank.
"PEACE IS THAT GLORIUS MOMENT IN HISTORY WHEN EVERY ONE STANDS AROUND RELOADING"

THOMAS JEFFERSON


 
arnieg141 
Dedicated Enthusiast
Posts: 6352
arnieg141
Loc: nj
Reg: 10-06-08
03-21-10 06:32 AM - Post#1883795    
    In response to Alaskan52

ron check fuel filter in carb since your running a v8. my be cloged. if so replace it and put a clear one in line also so you can monitor junk from tank it don't hurt to run 2 filters.
GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
arnieg141 
Dedicated Enthusiast
Posts: 6352
arnieg141
Loc: nj
Reg: 10-06-08
03-21-10 06:38 AM - Post#1883799    
    In response to arnieg141

also ron get an after market fuel gauge for under dash only need power wire to it and other wire runs to tank. if it still has orginal sender in tank it will read 3/4 at full that way atlest when you get to 1/4 you'll stil know you have plenty of gas to get more
GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-21-10 09:12 AM - Post#1883901    
    In response to arnieg141

I have a V-8 in it that runs perfect. I have a wiring harness in the mail right now to correct all the electrical problems.

My question was because I ran out of gas premature. My fuel line attaches to the front corner of the tank about 1 1/2" from the bottom.

When I first got the car,(two weeks ago) I drained the tank, unthreaded the fuel line from the tank (and fuel pump) and blew the line clear. I tried to blow through the 1/8" pipe fitting in the tank but it was clogged. Is there a one way check valve in there? I ran a wire through the opening but it hit something solid about 6-8" inside the tank. After several attempts with the wire and air blowgun, I broke through the clog. I never felt the wire break through, It was the blowgun that suddenly started putting air in the tank. I must have blown a hole in the tube in the tank somewhere near the fitting.

I am positive I was out of gas. The carb was empty. My wife arrived with more gas and we drove it home and then to the gas station. The amounts it took and what I had in it made me realize something wasn't right.

Has anyone had their tank apart to see the pickup tube?
Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
arnieg141 
Dedicated Enthusiast
Posts: 6352
arnieg141
Loc: nj
Reg: 10-06-08
03-21-10 09:25 AM - Post#1883915    
    In response to Alaskan52

i you go for new tank i just got a steel 16 galon from chevy's of 40's nice just let the know you have v8 covertion.ps if you have any rubber hose in gas line replace them old one tend to calapes in side after motor running awhile
GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
Coaldalecar 
"6th Year" Gold Supporting Member
Posts: 194
Coaldalecar
Loc: High River, Alberta, Cana...
Reg: 10-10-08
03-21-10 10:43 AM - Post#1883952    
    In response to Alaskan52

Yes the pickup tube is visible from the sending unit hole. I was just checking mine last week. The end of it is fastened to the bottom middle of the tank. Thats the way mine is anyways. Good luck.
Alan Klassen, High River, Alberta, Canada
1952 Chev 2Dr Sedan Deluxe, 99 Olds Alero, 02 Chev Silverado Ext Cab


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-21-10 06:36 PM - Post#1884280    
    In response to Coaldalecar

You know,...................a plugged vent in the cas cap will create the same symptoms........
Figured that out while draining the tank. All is well now.
Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
56sedandelivery 
Valued Contributor
Posts: 3142

Age: 62
Loc: Everett, Wa.
Reg: 02-26-08
03-21-10 09:06 PM - Post#1884374    
    In response to Alaskan52

I'd replace the sending unit/fuel pickup with an original style unit, and not one of the universal types. We put a new tank and sending unit/pickup in our 51 Bus Coupe; they initially sent a universal sending unit/pickup, and it just was'nt worth the headache. So, we got a stock style, and everything went smoothly. Then we flushed and blew out the stock fuel line, lots of trash came out. You had your rear end out and apart, what gears are in it? With the traction bars, I'm guessing lower gears, and therefore less MPG. Is it a manual or automatic trans? Just curious. Butch/56sedandelivery.



 
Bill K.b 
Senior Member
Posts: 4157

Loc: upstate NY
Reg: 10-24-05
03-22-10 01:07 AM - Post#1884433    
    In response to 56sedandelivery

Okay, there's no way you drove 20 miles and used up 12 gallons of gas - that's 1.6 gallons to the mile. Even NASCAR stock cars get 4-8 MPG depending on race conditions. Two gallons maybe if you're getting exceptonally bad fuel milage, even my Suburbans get about 15 though.

Get a yardstick or similar tool, or even a dipstick if you can't get a straight shot into the tank, and use that to check the fuel level for certain. You can knock on the tank, too, and listen to determine if it's actually empty or not.


If it does in fact empty so fast, could there be a leak? I know we saw one on the highway the other day that had to be leaking gas, there was way too much fluid coming out for it to have been water from a car wash or something. Seems less likely with the lower pressure and I assume a puller fuel pump, but it can happen.



Those who can, do. Those who can't, criticize it on the internet.

1991 G20 van 5.7L - swap meet spl.
1993 3500 dually 5.7L NV4500 - tow truck
1991 Suburban 5.7

Plus cars for swap and sale
&yes, I once tried a frame swap on a 51 Chevy.


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-22-10 08:53 AM - Post#1884603    
    In response to Bill K.b

I guess you missed my post a few up from this one.
I had a vent problem and the tank vacuume locked.

I figured this out while draining the tank. The fuel coming out started slowing down after 5 gals. The second 5 gal went even slower. I figured the level was now low enough to pull off the filler hose. As I pulled it off, I heard this huge sucking noise and the flow out of the fuel line sped up dramatically.


Butch, You know, I didn't take the time to check the ratio. I had the $200.00 axle bearings bought and pressed on before I pulled the third member. That's when I saw the two cracks in the clutch housing.
I figured I'd just baby this till the Nova I've been watching gets out of impound and over to the wrecking yard. IF this happens, I'll take the front clip and rear axle.


I'm suprised I didn't hear the vacuume escape when I took the cap off on the side of the road.

Ron Pratt
Sitka, Alaska
1965 GMC 4x4


Edited by Alaskan52 on 03-22-10 09:11 AM. Reason for edit: No reason given.

 
gsport 
Contributor
Posts: 912
gsport
Loc: Salem, Oregon
Reg: 10-04-09
03-22-10 10:19 AM - Post#1884656    
    In response to Alaskan52

sounds like a collapsed rubber hose somewhere, to me
Jim
Salem, Oregon
1950 chevy, sport coupe. gone, but not forgotten
2011 chevy, SS camaro, synergy green
2011 silverado 4x4 crewcab, 3500 HD
2006 corvette convertible
2014 39ft. 5th wheel
2013 harley fatboy
2006 john deere riding mower


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-22-10 11:00 AM - Post#1884681    
    In response to gsport

For a vacuume to be in the tank, it would have to be the little 6" connection hoses for the fill and vent.(Those are the only hoses) I had them both off and they're clear.
I figured it was the cap.
However,.....when I initially filled the tank (after draining), with jerry jugs, the fuel would come up the fill tube. I would stop and the fuel would just sit there right at the top of the neck. I admit, while pouring, the gas was going in the vent port in the side of the fill neck. I figured this was causing the airlock. If I snaked a hose down the fill tube you would hear a rush of air and the fill neck would clear. This wouldn't happen till the hose reached the tank. You could hear the rush of air through the siphon hose. This let me know I had the vent tube plugged with either fuel or there is a blockage in the tank side of the vent. With the connector hose off, I could easily blow thru the fill neck and vent tube. I was able to run a wire through the tank side fill neck and there were no restrictions. The wire (coat hanger size) hit a metal restriction on the tank side of the vent tube. I just assumed it was the "whistle" baffel.

I guess it's not a big deal to just drop the tank tonight and check it out plus I can test the sending unit.
I'll report what I found if anything.. I'll also test the gas cap as I believe it's the culprit.
Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-22-10 07:34 PM - Post#1884996    
    In response to Alaskan52

I dropped the tank and pulled the sending unit. I saw the pickup tube also. Here's some pictures.
N..A..S..T..Y!!!





Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
hillbilly49 
Contributor
Posts: 489
hillbilly49
Loc: Syracuse, UT
Reg: 07-15-08
03-22-10 08:55 PM - Post#1885047    
    In response to Alaskan52

That's kinda what my tank looked like. I went with an 11 gallon aluminum tank in the trunk.
Aaron

1964 K10 - 350-4 speed
1994 C3500 crew dually - 454-4L80-5/7 drop

If it ain't broke, I haven't driven it.


 
arnieg141 
Dedicated Enthusiast
Posts: 6352
arnieg141
Loc: nj
Reg: 10-06-08
03-23-10 07:48 AM - Post#1885249    
    In response to Alaskan52

ron i went to stock 16 gallon http://www.parts123.com/parts123/yb.dll?parta~dynd...
GET ER DONE .. AS I GET OLDER I LIKE FAST CARS I CAN STILL DRIVE. AND VERY SLOW WOMEN I CAN CATCH while still able..arnie garrison


 
Alaskan52 
Forum Newbie
Posts: 36
Alaskan52
Age: 50
Loc: Sitka, Alaska
Reg: 03-19-10
03-23-10 08:28 AM - Post#1885269    
    In response to arnieg141

For now, I'm going to use the POR-15 gas tank sealer kit. I used it on a ATV gas tank several years ago and it's still holding up. (That one had holes). Freight to Alaska is horrendous!! I'd pay as much for freight as the tank itself.

Arnie, that link has good prices,.....the best I've seen on the sending unit.
Ron Pratt
Sitka, Alaska
1965 GMC 4x4


 
B.Breedlove 
Senior Member
Posts: 266

Age: 47
Loc: Homosassa, Florida
Reg: 02-24-05
03-23-10 09:19 AM - Post#1885285    
    In response to Alaskan52

The pick-up tube is tack welded to the bottom of the tank and there's a very small gap for fuel to go through. If you poor that stuff in there it's likely to seal off the small opening for fuel isn't it? I put gravel in my tank one time and shook it around for what it seemed like "forever". When I was done it actually cleaned up pretty nice. Ended up buying a new tank later because I switched to fuel injection. When I was young and stupid; on another car I cut the tank in half, sand blasted it and welded it back together. It was like trying to weld toilet paper. Don't recommend that unless you have pleanty of time and a lot of oxy/accet.
Brian Breedlove 54 Sport Coupe http://www.cadvision.com/blanchas/54pontiac/chev53_54/54chev/index.html


 
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