Kroil challenge!

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Dusty B
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Kroil challenge!

Postby Dusty B » Mon Apr 27, 2020 9:17 pm

OK all you kroil enthusiasts Time for the true challenge. Lug bolts on rear wheels oh my North Carolina Cub which have been soaking in PB blaster every since DSCF are frozen! Impact wrench heat breaker bar NO go! Finally broke down and spend the big bucks for a can of kroil! Any suggestions for maximum effectiveness welcome! Really hate to think of of drilling and re-tapping broken rear lug bolts! :help:
Grandpa's '41 B
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Re: Kroil challenge!

Postby Eugene » Mon Apr 27, 2020 9:20 pm

Bigger impact wrench.
I have an excuse. CRS.

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Peter Person
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Re: Kroil challenge!

Postby Peter Person » Mon Apr 27, 2020 9:29 pm

1957 Farmall Cub "Emory", Fast-Hitch, L-F194 Plow & Colter, L-38 Disc Harrow, Cub-54A Blade, Cub-22 Sickle Bar Mower, IH 100 Blade

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Don McCombs
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Re: Kroil challenge!

Postby Don McCombs » Mon Apr 27, 2020 9:43 pm

What kind of heat are you using? OA, propane?
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Nelson 634
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Re: Kroil challenge!

Postby Nelson 634 » Tue Apr 28, 2020 1:46 am

Short burst, (2-3 sec.) 2-3 times and change directions with a decent Impact Wrench. I never only turn a stuck bolt one direction, even if I'm using manual tools. I've had the best results with the short burst. Usually I twist off the bolt if I just stand on the impact wrench in one direction. Good luck. Walter
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Rick Spivey
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Re: Kroil challenge!

Postby Rick Spivey » Tue Apr 28, 2020 6:11 am

In addition to both directions, I start with my impact wrench on its lowest setting, and just let it bang on the bolt in both directions. Slowly increase (mine has 4 settings), and usually it will break loose at some point
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Re: Kroil challenge!

Postby inairam » Tue Apr 28, 2020 6:28 am

Try a homemade mix of 50% automatic transmission fluid and acetone in a spray bottle. It is cheap and effective - and get a bigger impact wrench.

I have one of those induction heaters at work. They are very effective if you can get a few wraps about the target. I have not had to try them on a lug nut. worth a try if you can borrow one.
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radioguy41
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Re: Kroil challenge!

Postby radioguy41 » Tue Apr 28, 2020 6:52 am

Nelson 634 wrote:Short burst, (2-3 sec.) 2-3 times and change directions with a decent Impact Wrench. I never only turn a stuck bolt one direction, even if I'm using manual tools. I've had the best results with the short burst. Usually I twist off the bolt if I just stand on the impact wrench in one direction. Good luck. Walter

Good advice when removing spark plugs as well (minus the impact wrench). Change directions while gaining a bit in the unscrewing direction each time until it finally loosens up.
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Dusty B
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Re: Kroil challenge!

Postby Dusty B » Tue Apr 28, 2020 8:20 am

Thanks everyone - w/be back at it this week when it rains! :tractor:
Grandpa's '41 B
'56,,'57,'59, Cu'b
'45 C
'55 Case S
Dad's DB garden tractor
'48 DeSoto
'31 "A Coup
'79 Lincoln TC
God looks out for those of us who don't know how to look out for ourselves!

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Re: Kroil challenge!

Postby Frozenstate » Tue Apr 28, 2020 12:43 pm

Oxy acetylene torch, get them red hot, they will come off.
Penetrating oil only gives you time to figure out you need heat and impact. Never really seen any Penetrating oil that helps until after something starts turning.

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SONNY
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Re: Kroil challenge!

Postby SONNY » Tue Apr 28, 2020 9:11 pm

Dusty!---if you need a oxy./acy. torch,--you can use my big one, if it will help you! ---I found that heat/soak/heat/soak will break stuck bolts loose.


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