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Unread 06-05-2013, 11:07 AM   #1
Oily
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Gas Tank Removal ?

85 Laredo with the bumperettes and factory tow hitch. I am stuck at the skid plate. The bolts spin on the inside when I work the outside accessible fasteners. The back cross member, skid plate, and the tank keep me from using a back up wrench.
Do you drop the tank from the front first ?
Thanks in advance, .

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Unread 06-05-2013, 11:25 AM   #2
pman
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Oily- I didn't have to deal with the bumperettes causing extra interference, but when I've dropped my tank, I'll take a long flat screwdriver and wedge it into the crossmember holes to apply pressure to the nut, which has been sufficient to hold it while I loosen the bolt. Hope that makes sense!

I tack welded those particular nuts before I put the tank back on so I don't have to deal with that mess again.
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Unread 06-05-2013, 11:35 AM   #3
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I've used the screwdriver trick as well. Sometimes it works. If that doesn't work a 4.5" grinder with a cutting disc will be your friend. Before reinstalling I tacked welded the bolts from the bottom side.
I put the skid in place loosely , hung it by the new bolts and then tacked them. IIRC I used the next size larger washer to make room for the tack welds.

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Unread 06-05-2013, 12:11 PM   #4
keith460
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There should be 5/16 Carriage Bolts going through the rear cross member which are held in place with spring steel push nuts. The push nuts prevent the carriage bolts from lifting up and spinning while you take the nuts off.

The carriage bolts are dropped in from the inside through the square holes in the rear cross member and then the push nuts are pushed on from the bottom to keep them in place. At least that's how it was installed from the factory.

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Unread 06-05-2013, 02:49 PM   #5
Oily
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Ok, .
Thanks, .
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Unread 06-05-2013, 03:18 PM   #6
SLO_Ken
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Quote:
Originally Posted by keith460 View Post
There should be 5/16 Carriage Bolts going through the rear cross member which are held in place with spring steel push nuts. The push nuts prevent the carriage bolts from lifting up and spinning while you take the nuts off.

The carriage bolts are dropped in from the inside through the square holes in the rear cross member and then the push nuts are pushed on from the bottom to keep them in place. At least that's how it was installed from the factory.

Huh... I did not know about the pushnuts. I'll have to get a few of those before I reinstall my tank.
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Unread 06-05-2013, 04:03 PM   #7
keith460
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Originally Posted by SLO_Ken View Post
Huh... I did not know about the pushnuts. I'll have to get a few of those before I reinstall my tank.
Yeah, most of mine had rusted away so I bought the ones posted from McMaster-Carr.com. Makes it easier to remove and install without the carriage bolts trying to spin.
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Unread 06-05-2013, 04:07 PM   #8
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When I have the tubs off, I take it a step further and weld a nut centered in the square hole. This allows for a bolt from the bottom to be used, The type with the washer like used on the fenders or grill are best.

This is viewed from the inside where the tank would be...or the top of the carriage bolt head.

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Unread 06-06-2013, 08:39 AM   #9
Oily
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Thanks to keith460 ...again, for his excellent pics.

My tank looks nothing like that. Mine is also plastic but is formed exactly like the encapsulating skid plate/cradle. It has data info stamped/formed onto the outside surface (which has 8/84 next to a month/year stat and mine is an 85). I would be very surprised if it is not original equipment as I am the third owner (one owning it for more than twenty years before selling it to family). I also find all original equipment (even smog), no hacked wires, nothing which would make me dread any PO nightmares.
I also see no rollover or liquid check valves. Could it be original ? I might be able to get some pics later.
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Unread 06-06-2013, 08:50 AM   #10
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Quote:
Originally Posted by Oily View Post
.... My tank looks nothing like that. Mine is also plastic but is formed exactly like the encapsulating skid plate/cradle. It has data info stamped/formed onto the outside surface (which has 8/84 next to a month/year stat and mine is an 85)....
I also see no rollover or liquid check valves. Could it be original ? I might be able to get some pics later.
You may have the factory 20 gallon plastic tank with the rollover valves inserted at the top of the tank. I believe there are two.

Do you have any photos? The one pictured above with the check valves is the common 15 gallon version.

Here's a 20 gallon factory tank picture with the skid plate intact. Is this the version you have?

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Unread 06-06-2013, 09:01 AM   #11
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Originally Posted by keith460 View Post
You may have the factory 20 gallon plastic tank with the rollover valves inserted at the top of the tank. I believe there are two.

Here's a 20 gallon factory tank picture with the skid plate intact. Is this the version you have?
There are two check looking valves (I took one out). You 20 gallon pic looks like my skid plate. I am sure I have original per your post and that the hose clamps are crimped strap. Thank you again.
So, to order new filler and vent hoses, I would have to specify the optional twenty gallon tank ? Your original pics did not show them.
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Unread 06-06-2013, 09:09 AM   #12
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Ah, I forgot. I now need to remove the pick up tube/float assembly. It does not have the spanner wrench lock ring. It looks as simple as unscrewing a 3"+/- nut type plug. It looks though like the whole float assembly would rotate with it.
Any thoughts ?
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Unread 06-06-2013, 09:18 AM   #13
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Ah, I forgot. I now need to remove the pick up tube/float assembly. It does not have the spanner wrench lock ring. It looks as simple as unscrewing a 3"+/- nut type plug. It looks though like the whole float assembly would rotate with it.
Any thoughts ?
It doesn't. The pickup assembly has a couple tabs that fit into notches to prevent it from rotating. Remove the 3" nut and the pickup should pull straight out. There is an O-ring between the pickup and the tank that may give you a bit of trouble, but once that nut is off, there is nothing else retaining the pickup assembly.
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Unread 06-06-2013, 11:00 AM   #14
Oily
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Thanks again.
Now I am having trouble locating replacement fill and vent hoses(s). Vent hose goes back to the fill neck. Most places locally sell it by the foot/inch but it seems as though they are multi diameter hoses, larger where they attach to the tank and filler neck.
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Unread 06-06-2013, 12:38 PM   #15
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Now I am having trouble locating replacement fill and vent hoses(s). Vent hose goes back to the fill neck. Most places locally sell it by the foot/inch but it seems as though they are multi diameter hoses, larger where they attach to the tank and filler neck.
Quadratec has what you need for the 20 gallon factory tank.

Fuel Filler Hose: http://www.quadratec.com/products/51308_0010.htm

Fuel Filler Vent Hose: http://www.quadratec.com/products/51307_0007.htm
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