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Author Topic: Fuel Tank  (Read 348 times)

Jason Goldsack

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Fuel Tank
« on: March 24, 2009, 02:54:46 AM »

POLARACO2009-03-24 11:58:13
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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Stan Paralikis

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« Reply #1 on: March 24, 2009, 05:33:21 AM »




It isn't because you shut off your engine to check the tank and then start it up again, is it?

If not, and it's not supposed to be a pressurized tank ,change gas caps. Sounds like your cap is for pressurized tanks.

If you're supposed to have a pressurized gas tank, you have a clogged vent line or a charcoal canistor is clogged, or.. a zillion other things.  I would just change to an unvented cap.  But I don't know how green you want to be.

But first drive it with just a rag stuffed in the filler neck and see if it still does it.  You may want to extinguish your cigar first...
Commando12009-03-24 09:40:23

Jason Goldsack

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« Reply #2 on: March 24, 2009, 06:30:54 AM »

It is the type that turns one a half turn with the two little tabs on the cap...

 
I'll try the driving with the cap off... to see... you can really here the air rush in the tank when the cap is opened... a realy strong vaccum..
 
The tank vents all the way to the vacuum canister?
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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Leaburn Patey

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« Reply #3 on: March 24, 2009, 07:06:37 AM »

Had the same problem with the Dippy.Drilled a tiny hole in the plastic gas cap.
Done.
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1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Stan Paralikis

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« Reply #4 on: March 24, 2009, 09:41:11 AM »





Commando12009-03-24 13:42:39

Jason Goldsack

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« Reply #5 on: March 24, 2009, 10:32:43 AM »

Good idea...
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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Jason Goldsack

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« Reply #6 on: March 24, 2009, 12:41:17 PM »

I meant to say charcoal canister... typing faster than the brain can work

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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Steve

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« Reply #7 on: March 24, 2009, 02:39:33 PM »

That's what I was going to say was the canister.
 
The tank vents through the canister and the charcoal is supposed to absorb the odor.  The vacuum line on top is supposed to recover the vapors.
 
Without being able to look at it, I would check those lines and the canistor first.  That has an antirollover leak system in it.  You may want to keep that working.
 
I'm surprised it ran after a while.  That much vacuum in the tank would usually prevent the fuel pump from drawing any fuel.
 
Does that have a three nipple fuel filter or just a straight through?
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Jason Goldsack

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« Reply #8 on: March 24, 2009, 03:32:57 PM »

Good question... I will have to check it out... First I have to find the fuel filter on this thing...

This is my first VAN style Mopar so I have to learn where everything is...

Can I just get rid off all those vacuum lines?


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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Steve

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« Reply #9 on: March 24, 2009, 04:50:26 PM »

You can start by disconnection the hoses at the canister going back to the tank.
 
If it were me, I'd leave the canister in place and get it working.  Vans are finnicy
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Jason Goldsack

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« Reply #10 on: March 24, 2009, 04:55:20 PM »

Is the vacuum lines at the canister a closed system?... will I get a vacuum leak if I run with them unplugged.. or can I loop the lines at the canister

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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Leaburn Patey

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« Reply #11 on: March 24, 2009, 06:24:39 PM »

Yes,it is a closed system.Designed to keep raw gas fumes at bay and not out to the atmosphere.
 I would keep the charcoal canister functioning  and replace the filter.
You can disconnect the vacuum lines but I do not recommend it.
Seeing that your MPG sucks as it is,running without the cannister can hurt your MPG.Carb settings will be off and may need adjusting.
 
CBarge2009-03-24 22:25:34
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1968 Newport Custom project BOAB
1973 Satelitte wagon
1983 Dodge 400
2006 300C HEMI!!

Jason Goldsack

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« Reply #12 on: March 25, 2009, 02:22:14 AM »

I have never seen inside one of these canisters.. anyone have a picture... where do you get a filter for it?

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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Jason Goldsack

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« Reply #13 on: March 25, 2009, 02:22:50 AM »

A picture of the inside of a canister.. I know what the canister looks like..

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Jason

(Eileen)1965 Chrysler Windsor, 361/727/2.76 16.49 @ 86 mph

Stan Paralikis

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« Reply #14 on: March 25, 2009, 02:38:46 AM »

Can't find a pic but I can tell you what it looks like from when I disassembled (?) one recently.

Mine had a linen type filter with the canister packed full of charcoal.  I spent two hours sweeping out the shop.

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