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Breaking through rust with PB

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Old 09-10-2008, 01:19 PM
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Smile Breaking through rust with PB

Hey all, first post on the forum but I've been lurking for some time. I will post in the intro section for that stuff...

I am putting a Rustys Airtube intake on my newer XJ (2000) but the front two bolts used to hold the factory airbox in are rusted through. I hiked to the store to buy some PB's, sprayed it on there, nothing. Sprayed it, let it soak a good hour or so, tapped it, tried again with the sockets, nothing. Really really soaked it then, so the bolts were submerged overnight, and still nothing. Any ideas?

Peace
Old 09-10-2008, 01:32 PM
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Cut or grind down the bolt. Drill out the bolt then get a tap and die set and rethread it.
Old 09-10-2008, 01:33 PM
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OH and welcome to the forum.
Old 09-10-2008, 03:38 PM
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Try tightening it a lil first then slowly loosen, you just need to break through that initial build up and tightening it up a lil first is a good way to start. Keep tightening and loosening untill it is out.
Old 09-10-2008, 05:15 PM
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Try also cleaning the backside (If you can get to it) and the top with PB and a wire brush.
Old 09-10-2008, 05:35 PM
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Well, I tried the tightening and loosening back out, but to no avail. Bolts were completely rusted through. I ended up just punching out 2 small circles at the front of the airbox so I could pull the box out and leave the bolts with 2 small rounds of plastic below them. I don't have plans to put the old airbox back in, but even if I do, it will still fit well.

Thanks for the help all.

Peace
Old 09-10-2008, 10:13 PM
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haha i just tried this last night, i didnt have to cut. just ended up using a little PB and a torch which seemed to really really make the job a ton easier. i recommend fire.
Old 09-11-2008, 10:23 AM
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Haha I had a torch ready to go and my roomate walked out and looked at the PB, the torch, and my engine bay, and thought it was a bad idea. Punching out the 2 holes wasn't too bad...
Old 09-11-2008, 10:48 AM
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So you got everything out and a new CAI installed. Good you can cut those bolts later.
Old 09-11-2008, 10:52 AM
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Every heard of a cheater bar?

There cheap and the work. Get an extension on your socket to where the you can get the handle out above the air box and stick a 3' piece of pipe on it. Those bolts will come lose or break. Either way you could get them out
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