Fuel tank issue
#1
Instructor
Thread Starter
Fuel tank issue
Morning Everyone, During the final shake down of the restoration of my 1970 Corvette we noticed that the fuel tank was leaking from a valve of sorts about the size of a quarter next to the fuel filler assembly. The valve is located to the left of the filler about 4 or 5 inches. This is an original tank and in excellent condition. I would like to save it if possible. Is there anything I can do to fix this problem? The valve I believe is there to let air back into the tank as the fuel is depleted from the tank. If this will help the lettering on the gas cap reads “SEALED” Thanks....Droop
#2
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Member Since: Sep 2006
Location: Westminster Maryland
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Hi Droop,
What you're seeing is the button relief valve.
I'm wondering if it's stuck open?
If it's working properly you should be able to push it in with your finger and it should spring back on it's own.
It only moves about 1/16"
Maybe a little wd40 on it will free it up?
Regards,
Alan
What you're seeing is the button relief valve.
I'm wondering if it's stuck open?
If it's working properly you should be able to push it in with your finger and it should spring back on it's own.
It only moves about 1/16"
Maybe a little wd40 on it will free it up?
Regards,
Alan
Last edited by Alan 71; 08-18-2016 at 04:44 PM.
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20mercury (08-19-2016)
#3
Instructor
Thread Starter
Hi Droop,
What you're seeing is the button relief valve.
I'm wondering if it's stuck open?
If it's working properly you should be able to push it in with your finger and it should spring back on it's own.
It only moves about 1/16"
Maybe a little wd40 on it will free it up?
Regards,
Alan
What you're seeing is the button relief valve.
I'm wondering if it's stuck open?
If it's working properly you should be able to push it in with your finger and it should spring back on it's own.
It only moves about 1/16"
Maybe a little wd40 on it will free it up?
Regards,
Alan
#4
Team Owner
Member Since: Sep 2006
Location: Westminster Maryland
Posts: 30,173
Likes: 0
Received 2,878 Likes
on
2,515 Posts
Hi Droop,
My thought is that it would be difficult to replace the valve.
From feeling (not seeing) what's inside the tank it appears the valve is 'crimped' in place.
I guess it would be possible to get the old one out but I don't know how you'd get the new one in place.
I guess your best hope is that something like wd40 will free up the valve's movement.
Regards,
Alan
My thought is that it would be difficult to replace the valve.
From feeling (not seeing) what's inside the tank it appears the valve is 'crimped' in place.
I guess it would be possible to get the old one out but I don't know how you'd get the new one in place.
I guess your best hope is that something like wd40 will free up the valve's movement.
Regards,
Alan
#5
Instructor
Thread Starter
Hi Droop,
My thought is that it would be difficult to replace the valve.
From feeling (not seeing) what's inside the tank it appears the valve is 'crimped' in place.
I guess it would be possible to get the old one out but I don't know how you'd get the new one in place.
I guess your best hope is that something like wd40 will free up the valve's movement.
Regards,
Alan
My thought is that it would be difficult to replace the valve.
From feeling (not seeing) what's inside the tank it appears the valve is 'crimped' in place.
I guess it would be possible to get the old one out but I don't know how you'd get the new one in place.
I guess your best hope is that something like wd40 will free up the valve's movement.
Regards,
Alan