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How i fixed a spinning insert in the gas tank


Green95LX

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Ok so my threaded insert started spinning the gas tank when i went to remove the bolt. It seems like most people dont know what the hell to do when this happens. People buying another tank (seriously?) made no sense to me. It's going to happen again one day, just as it did before. So after some research this is how i decided to repair it.

 

If the bolt is still in the insert, cut the head off (i used a hack saw)

take an electric drill and chuck it on the bolt sticking out, i'd tighten it pretty good

now spin the shit out of it and lightly pull out, the insert will eventually heat up and pull free

Measuring the factory insert and the existing hole left after removing the insert, i found that 1/2-13 thread would work out nicely

I didn't drill the hole any larger after i got the insert out, this is the factory insert removed

IMG_2022.jpg

I didn't have a bottoming tap, so i ground a 1/2-13 bolt to play it's part

IMG_2041.jpg

This is the threaded insert i made for the repair. I took a stainless 1/2-13 bolt and parted the head off, faced it to .500 length. Then drilled and tapped it M6-1.0. It is not drilled completely through, it's a blind hole just as the factory insert was.

IMG_2021.jpg

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Once i had threads cut in the gas tank, i took an M6 bolt with a locknut threaded on it partially and used them to drive the repair insert in until it felt like it was bottomed out. I smeared some black RTV silicone on the inserts threads before i installed it, it wouldn't hurt to use something to help lock it in. Although if it ever did come back out, it can just be threaded back in.IMG_2042.jpg

Edited by Green95LX
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Ok, not shabby. No leaks?

The cavity where the insert sets is not open to the gas tank. I failed to get pictures of everything, this thread was actually kind of an afterthought, I wanted to share and hopefully someone else could benefit from it. Luckily i had enough pictures to piece this together.

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Well done that is a handy repair!!

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How much $ in parts and tools?

I don't have any money in the repair, actually was at work when i made the inserts. Even though i used a normal tap to get started in the tank, a person could grind a bolt and get by with only that. All things considered i believe this is a very cost effective repair

Edited by Green95LX
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