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Old 10-08-2015, 07:48 PM   #1
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"Freeze Spray"

Anyone, any experience with "freeze spray" rusted bolt remover? vs: liquids?
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Old 10-09-2015, 01:00 AM   #2
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Never heard of it how does it work doesn't sound right to me.
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Old 10-09-2015, 01:30 AM   #3
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Loctite Freeze & Release -
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Old 10-09-2015, 08:36 AM   #4
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used it on a circulation pump bolt. Worked like a champ
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Old 10-09-2015, 09:11 AM   #5
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Makes perfect sense to me.
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Old 10-09-2015, 09:37 AM   #6
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Sure why not? Heating nuts is an old trick so chilling bolts is similar.
Long time ago to remove a stuck head bolt I used dry ice on the bolt. It worked, or at least I got it off.
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Old 10-09-2015, 11:38 AM   #7
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Thanks for replies. Yes, that's the stuff. I was once told that heating the bolt (which I have done many times) expands it, crushing the rust, and as it cools it can be removed. I don't know if this is correct b/c I usually find it turns easy while still hotist. Anyway cooling should be less damaging to everything involved.
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Old 10-10-2015, 06:59 PM   #8
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The stuffs worthless unless its a small bolt. 1/4" and up it doesnt help because there is too much temp transfer to the surrounding metal.

I snapped a bolt for the elbow off in the exhaust manifold and finally got it out with a propane torch and a pair of vice grips (after squaring the bolt end with a grinder) and a hammer to create sharp impacts to break up the corrosion. I tried 2 cans to no avail.
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Old 10-10-2015, 07:58 PM   #9
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I hope the TFer replacing his exhaust elbow is following this thread.
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Old 10-10-2015, 08:51 PM   #10
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I hope the TFer replacing his exhaust elbow is following this thread.
Didnt know there was one. I'd be happy to pass it along. Anyone have a guess on the thread title?
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Old 10-10-2015, 09:04 PM   #11
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Didnt know there was one. I'd be happy to pass it along. Anyone have a guess on the thread title?
It`s "rotten exhaust outlet", I put a post on it he should get.
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Old 10-10-2015, 09:18 PM   #12
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Quote:
Originally Posted by Brooksie View Post
Thanks for replies. Yes, that's the stuff. I was once told that heating the bolt (which I have done many times) expands it, crushing the rust, and as it cools it can be removed. I don't know if this is correct b/c I usually find it turns easy while still hotist. Anyway cooling should be less damaging to everything involved.
The process I've been shown is to SLOWLY heat the bolt- the surrounding manifold/ etc. shouldn't actually get very warm. Then let it cool for a while. Heating both the threads and surrounding area will usually work for a turn or so- but there is a good risk of galling the threads and damaging them.
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Old 10-11-2015, 12:32 PM   #13
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Often all it takes is a couple of counter-intuitive measures: a gentle tap or two with a hammer, then tighten the bolt before going counter clockwise. Have to admit I have not tried the freeze stuff, sounds slick.
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Old 10-11-2015, 05:27 PM   #14
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Often all it takes is a couple of counter-intuitive measures: a gentle tap or two with a hammer, then tighten the bolt before going counter clockwise.
I'm not at all a mechanic (or even mechanically inclined), but did watch a good mechanic in a boatyard work on an old Westerbeke that had rusted bolts. He squirted penetrating oil on them, gave gentle taps with a hammer, and then went off and did other stuff. Every now and then he would come back and repeat that process. Finally he took a wrench to it, and just went back and forth, loosening it just a tad, tightening it just a tad, but always the loosening would be a little more than the tightening. A lot of squealing from the bolts, but they all came out intact. I was impressed.
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Old 10-11-2015, 06:34 PM   #15
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I'm not at all a mechanic (or even mechanically inclined), but did watch a good mechanic in a boatyard work on an old Westerbeke that had rusted bolts. He squirted penetrating oil on them, gave gentle taps with a hammer, and then went off and did other stuff. Every now and then he would come back and repeat that process. Finally he took a wrench to it, and just went back and forth, loosening it just a tad, tightening it just a tad, but always the loosening would be a little more than the tightening. A lot of squealing from the bolts, but they all came out intact. I was impressed.
True John, there is an "art" to it, which is why I would not tackle a job like that, too much can go wrong removing old bolts in that situation.
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