Cracked fuel tank #2

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From your thread and mine here

Landcruisinmy93. 2+ tanks
Jfz80 5+ tanks Multiple repairs
Ppc
Macca80
Kief
Uferblugen
Permiancruiser
Newtomelx
Cryorunner
SWcruiser
Tools r us -- client/club members
Ink pot --customers/club members 1 repeat
-some dude that posted in another thread that sold his lol

Unconfirmed
Bilt4me
 
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@jfz80, I appreciate the input. That's a great list, I was hoping more people who had the tank cracking issue would chime in. Those are the ones we know about through postings, I was hoping some others who haven't posted would come forward...always an assumption that there are more. Toyota responded by sending me an 800 number to call that nobody answers Lol.
 
LandCruisinMy93 said:
@jfz80, I appreciate the input. That's a great list, I was hoping more people who had the tank cracking issue would chime in. Those are the ones we know about through postings, I was hoping some others who haven't posted would come forward...always an assumption that there are more. Toyota responded by sending me an 800 number to call that nobody answers Lol.
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Post the 800 number and the response please.
 
Subject
Fuel Tank Failure

Discussion Thread
Response Via Email (Tiffany H.) 01/04/2016 05:14 AM
Dear Mr. *****,

Thank you for contacting Toyota Motor Sales, U.S.A., Inc.

We are sorry to learn of the concerns you are experiencing with the fuel tank on your 1993 Land Cruiser.

So we may effectively address your concern, and to ensure we have all the pertinent information, we ask that you please contact us at our toll free number, (800) 331-4331. Our hours of operation are 5:00 a.m. to 6:00 p.m Monday through Friday and 7:00 a.m. to 4:00 p.m. Saturday, Pacific time.

Your email has been documented at our National Headquarters under file #1601040003. If we can be of further assistance, please feel free to contact us.

Sincerely,

Tiffany H.
Toyota Customer Experience Center
 
I also have a cracked tank
 
tank.webp

I have cracks like this all around the tank
 
Does it leak when full ?

I believe those cracks are just in the tar coating on the tank. Should not be an issue except perhaps corrosion of water can get to and held at metal tank.

And I'm ready for an answer. Cheaper fuel is no good if it throws off your system. Guess I can't get 40bux when the light comes on anymore
image.webp
 
jfz80 said:
Does it leak when full ?

I believe those cracks are just in the tar coating on the tank. Should not be an issue except perhaps corrosion of water can get to and held at metal tank.

And I'm ready for an answer. Cheaper fuel is no good if it throws off your system. Guess I can't get 40bux when the light comes on anymore
View attachment 1191830
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I just assumed that is where it was. I tightened the hose on the tank and checked a few other things, when it is over 2/3 it drains in large puddles :mad:
 
This is the general culprit for us here in this thread. At the top of the tank there is a step down to match second row floorboard section. Also in that area is a groove on top of tank for the e brake cable routing. This three way stamped curve is where the tanks are failing.
image.webp
image.webp

I'm with 93. It's not pressure. I'm curious if a tank defect or a factor of our trucks (excessive body flex?) that is causing the failures.
 
jfz80 said:
This is the general culprit for us here in this thread. At the top of the tank there is a step down to match second row floorboard section. Also in that area is a groove on top of tank for the e brake cable routing. This three way stamped curve is where the tanks are failing.
View attachment 1191833 View attachment 1191834
I'm with 93. It's not pressure. I'm curious if a tank defect or a factor of our trucks (excessive body flex?) that is causing the failures.
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I will have to check that spot out, it would be nice to get some help on a tank from Toyota, it is a pricing thing to fix. Is there any after market replacements? I have seen the long range tanks but those run over $1000.
 
Looks like I probably have this same issue on my 97 LC. Smelled gas a bit recently, off and on for a few weeks. Last night I put in 20 gallons. Smelled it stronger than normal inside while driving home. Looked underneath and found a steady drip drip while parked on my slightly uphill driveway. It still continues to drip steadily today. Inspected the fuel lines from intake to the back of the tank and everything is dry. Took the middle seats out and opened the hatch and everything is dry there as well. Very wet on top front passenger side of tank, similar to many other posts I've found.

My question, what are others doing? It seems some are indicating they are just only filling 1/2 full and leaving as is. Is this OK to do until I figure out if I want to further try and repair myself or have a professional take a look? I have been the owner for about 2 years and have always had a considerable whooooosh when I remove the gas cap. I plan to replace the charcoal canister as I've just discovered that can help the pressure. Also, when I bought the vehicle, the previous owner had just put on a new off brand gas cap. They mentioned the smog tech had them do this for some reason. Do I need to also get an OEM cap?
 
PW24 said:
.

My question, what are others doing? It seems some are indicating they are just only filling 1/2 full and leaving as is. Is this OK to do until I figure out if I want to further try and repair myself or have a professional take a look?
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Has worked for me for several years. Just watch for smokers at red lights when full ;)

It is close to the muffler and can find its way to driveshaft to be slung around but I'd worry more about vapor and ignition source (spark) I try not to overfill but it has happened a few times and I'm still here.

And @LandCruisinMy93 if the goal of the thread is to document all the users with failed tanks a thread title change might benefit your/our quest.
 
The first pic is the crack I found in the exact same place as jfz80. The second photo is my new to me tank. Is all installed and has fixed the problem, I also went ahead and kept the fuel pump off the old tank.
Tak.webp


IMG_29761.webp
 
How are they cleaning/defueling the tank well enough to solder?
LandCruisinMy93 said:
I'm basically trying to get a running tally of how many of these tanks fail in the same manner to send Mr. T a nastygram and ask for a replacement tank or a UHMWPE replacement solution. New tanks aren't cheap and used ones don't last all that long.

FYI: those who suggest a charcoal canister is the culprit. The gas cap is designed to offload excessive pressure in the event the evap system isn't functioning properly and you have a tank vent tube which also works in the same manner. The cracking is due to a piss poor job of stamping the metal. The design of the upper part of the tank requires some serious stretching of the metal when stamped and creates a thin spot in the metal under a lot of tension. It's a stress crack from years of hard miles.

Potential Solution: so I was talking to the Girlfriends dad...restores old hot rods and is an all around car guy, he just patched the tank on his 95 Ford F-350 last week. Him and a few super old hot rod buddies got together and decided to clean the area really well, flux and solder a perimeter around the crack and then flux and solder a thin copper patch to match. Then they soldered the patch to the tank...apparently it went really well. Apparently his buddy has done this to numerous steel tanks and hasn't had a failed patch in 30 some odd years. Might give this a try depending on how easily I can replicate the cracked area with copper sheet. It beats hardening the already fragile metal and potentially causing more problems.
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jfz80 said:
.

Has worked for me for several years. Just watch for smokers at red lights when full ;)

It is close to the muffler and can find its way to driveshaft to be slung around but I'd worry more about vapor and ignition source (spark) I try not to overfill but it has happened a few times and I'm still here.

And @LandCruisinMy93 if the goal of the thread is to document all the users with failed tanks a thread title change might benefit your/our quest.
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Sorry it's taken me a bit to respond, how would you have me re-title the post? Open to suggestions.
 
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