Gas Tank

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Subject Author Date
Gas Tank Kerry 07-15-2008
Posted by Gary Pewitt on July 20, 2008, 8:32 pm
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The gasohol will also eat the rubber O-rings in your fuel injectors.
At least it did in my Mazda RX-7.

73 Gary




wrote:

>
>>
>>> wrote:
>>>
>>>>Ok, at 4$ + per gallon I can't ignore this any more. I have a gas
>>>>tank that
>>>>leaks when I turn to the right and it is more than half full. The
>>>>filler tube is my suspect since it is on that side. When I tackle
>>>>this job I would
>>>>only be too happy to find that the overflow tube or filler tube has a
>>>>crack
>>>>in it after 26 years of service. However I have to drop the tank out
>>>>to inspect it and when I do I want to be ready for anything....short
>>>>of buying
>>>>a new tank in advance. My main concern is that the upper surface of
>>>>the tank is hidden from view/inspection unless you remove it from the
>>>>car. So once I have effected a repair on the leak I do not want take
>>>>it apart again
>>>>in the near future.
>>>
>>>
>>> It is very likely that its the rubber overflow or return line thats
>>> cracked or leaking, or the rubber boot (if one) between the filler
>>> neck and the tank body.
>>>
>>> Ive owned two trucks where both of those finally cracked and started
>>> leaking on turns or when filling up to full.
>>>
>>
>> The more I drive the tank empty it leaks less and only on a right hand
>> turn...so the fuel is sloshing towards the driver's side which is the
>> same side the filler is on. The access is terrible and I doubt I can
>> take off the rubberboot (as you call it) without cutting it off. the
>> overfill/vent tube is smaller and I will start there. If I cut the
>> boot off I might get lucky and find the hole but still likely going to
>> have to drop the tank to replace it.
>>
>> Here is a thought to further pinpoint where it is leaking. If I were
>> to remove the vent tube and simply wrap the boot with duct tape it
>> should seal any leaks until the glue on the tape lets go. Perhaps a
>> plastic baggy wrapped around the hose then duct tape to hold that
>> firmly in place and a quick trip around the block. No leaks would
>> mean in the sealed section of the hose...well wouldn't it???
>>
>>
>>
>
>Instead of a plastic baggie, use rubber tape.
>
>The additives in gasoline will eat the plastic just like it will the
>rubber filler hose.
>
>I've got to replace both hoses to a gasoline tank on my FW RV: the $%^&
>gasohol additives ate them both up.

Posted by Kerry on July 22, 2008, 7:09 pm
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> The gasohol will also eat the rubber O-rings in your fuel injectors.
> At least it did in my Mazda RX-7.
>
> 73 Gary


You have fuel injection!!! Mine is a carb model. But I bet as time goes
on we will find the alcohol additives do more damage than first thought.

Kerry
>
>
>
>
> wrote:
>
>>
>>>


{ SNIP!! }



Posted by Gunner on July 17, 2008, 1:32 pm
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wrote:

>
>> wrote:
>>
>>>Ok, at 4$ + per gallon I can't ignore this any more. I have a gas tank
>>>that
>>>leaks when I turn to the right and it is more than half full. The filler
>>>tube is my suspect since it is on that side. When I tackle this job I
>>>would
>>>only be too happy to find that the overflow tube or filler tube has a
>>>crack
>>>in it after 26 years of service. However I have to drop the tank out to
>>>inspect it and when I do I want to be ready for anything....short of
>>>buying
>>>a new tank in advance. My main concern is that the upper surface of the
>>>tank is hidden from view/inspection unless you remove it from the car. So
>>>once I have effected a repair on the leak I do not want take it apart
>>>again
>>>in the near future.
>>
>>
>> It is very likely that its the rubber overflow or return line thats
>> cracked or leaking, or the rubber boot (if one) between the filler
>> neck and the tank body.
>>
>> Ive owned two trucks where both of those finally cracked and started
>> leaking on turns or when filling up to full.
>>
>
>The more I drive the tank empty it leaks less and only on a right hand
>turn...so the fuel is sloshing towards the driver's side which is the same
>side the filler is on. The access is terrible and I doubt I can take off
>the rubberboot (as you call it) without cutting it off. the overfill/vent
>tube is smaller and I will start there. If I cut the boot off I might get
>lucky and find the hole but still likely going to have to drop the tank to
>replace it.
>
>Here is a thought to further pinpoint where it is leaking. If I were to
>remove the vent tube and simply wrap the boot with duct tape it should seal
>any leaks until the glue on the tape lets go. Perhaps a plastic baggy
>wrapped around the hose then duct tape to hold that firmly in place and a
>quick trip around the block. No leaks would mean in the sealed section of
>the hose...well wouldn't it???
>


Use either a hand mirror or a small digital camera right after making
a series of sharp turns.
Be sure to use macro mode


Frankly...I learned to never fill above 3/4 tank and left them both
alone. Both were Ford Rangers

Im hoping the current Ranger doesnt develope this issue

Gunner

Posted by Leo Lichtman on August 7, 2008, 8:51 pm
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"Gunner" wrote: Use either a hand mirror or a small digital camera right
after making
> a series of sharp turns.
> Be sure to use macro mode.
^^^^^^^^^^^^^^^^^^^
You have a hand mirror with macro mode? Must be one of those concave ones.



Posted by Gary Pewitt on July 20, 2008, 8:29 pm
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When both tanks in my '90 Ford half ton started leaking I took it to
the dealer and he gave it a smoke test. No not with a candle. He had
a machine that generated smoke (without flame) and fed it into the
tanks under a little preasure. Turned out that the tank straps had
worn through the tops of the tanks and they were leaking out of the
top when nearly full and the truck was turned or braked. You could
see the smoke coming out of the leaks quite easily.
You might try to find a -safe- way to generate some smoke or just take
it to a dealer shop that has a machine. Doesn't have to be a Mazda
dealer. I had an '86 Mazda RX7 Turbo II, nice car as long as it ran.
73 Gary



wrote:

>
>> wrote:
>>
>>>Ok, at 4$ + per gallon I can't ignore this any more. I have a gas tank
>>>that
>>>leaks when I turn to the right and it is more than half full. The filler
>>>tube is my suspect since it is on that side. When I tackle this job I
>>>would
>>>only be too happy to find that the overflow tube or filler tube has a
>>>crack
>>>in it after 26 years of service. However I have to drop the tank out to
>>>inspect it and when I do I want to be ready for anything....short of
>>>buying
>>>a new tank in advance. My main concern is that the upper surface of the
>>>tank is hidden from view/inspection unless you remove it from the car. So
>>>once I have effected a repair on the leak I do not want take it apart
>>>again
>>>in the near future.
>>
>>
>> It is very likely that its the rubber overflow or return line thats
>> cracked or leaking, or the rubber boot (if one) between the filler
>> neck and the tank body.
>>
>> Ive owned two trucks where both of those finally cracked and started
>> leaking on turns or when filling up to full.
>>
>
>The more I drive the tank empty it leaks less and only on a right hand
>turn...so the fuel is sloshing towards the driver's side which is the same
>side the filler is on. The access is terrible and I doubt I can take off
>the rubberboot (as you call it) without cutting it off. the overfill/vent
>tube is smaller and I will start there. If I cut the boot off I might get
>lucky and find the hole but still likely going to have to drop the tank to
>replace it.
>
>Here is a thought to further pinpoint where it is leaking. If I were to
>remove the vent tube and simply wrap the boot with duct tape it should seal
>any leaks until the glue on the tape lets go. Perhaps a plastic baggy
>wrapped around the hose then duct tape to hold that firmly in place and a
>quick trip around the block. No leaks would mean in the sealed section of
>the hose...well wouldn't it???
>

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