Seized alignment bolts

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dlbleak

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PB blaster is my go-to. I keep stubborn stuff wet for as long as needed. Don’t rush it, as you know, stripped threads and broken bolts suck even worse!
 

mightymouse

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Kroil Oil or PB mentioned above.
Penetrating oil first, let it soak for some time. Then, if you can reach the head of said bolts, rap on them with a hammer (in a straight down motion, and a side-to-side motion) for several minutes. The vibration, together with the penetrant, may help loosen the mechanical bond. Good luck.
 
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DRC458

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I've tried a lot of things over the years ... Mil Spec penetrating oil, Liquid Wrench, PB Blaster, Kroil. One I have had little experience with, but worth trying is a 50/50 mix of acetone and ATF. Heat and judicious application of a hammer usually helps with all.
 

MacFromOK

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FIRST... apply Liquid Wrench (or a similar penetrating oil). Let set a bit (1/2 hr minimum).

Use an impact wrench if possible, if not, use a heavy box-end wrench on the bolt (preferably the nut if one exists) with hammer blows applied to other end of said wrench. This creates your own "impact" tool.

Just make sure you hammer it in the right direction.

My two cents & experience. :drunk2:
 

DRC458

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FIRST... apply Liquid Wrench (or a similar penetrating oil). Let set a bit (1/2 hr minimum).

Use an impact wrench if possible, if not, use a heavy box-end wrench on the bolt (preferably the nut if one exists) with hammer blows applied to other end of said wrench. This creates your own "impact" tool.

Just make sure you hammer it in the right direction.

My two cents & experience. :drunk2:

Actually, you bring up a very good point. If it really doesn't want to break loose, use a good penetrating oil, PB, BreakFree, Kroil, whatever, and let it soak. Then, using a good-fitting box end wrench and a substantial hammer, give it a really good "whack" in the TIGHTEN direction! This will quite often break the bond created by corrosion or whatever and allow you to remove the stuck fastener. Don't overdo it! One or two good whacks will do it, if it is going to work! YMMV
 

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