How to loosen over tightened bolt?

April 09, 2017, 06:51 AM

birddog1

Last fall I bought a new Toro mower from a dealer. 2nd Toro mower I've had. Yesterday I tried, emphasis on TRIED, to change the blade. I'm not sure how they put this stupid thing on but no matter what I do, I can't loosen the bolt. I can put all my weight on it and it won't budge. So short of taking it back to the dealer, how can I loosen this stupid thing? Would heating it work?

____________________________

Eeewwww, don't touch it!
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April 09, 2017, 07:01 AM

Mars_Attacks

Also don't use a 12 spline socket, it will just round it off.

Use a 6 sided socket. These newer little battery impact wrenches work very well. I have rattled many a stuck bolt off with my DeWalt 18v.

I just use two box end wrenches and lock them together for fulcrum, then grasp my fingers along the blade to pull the wrenches.

Stick a block of wood in the discharge to block the blade from moving.

____________________________

Eeewwww, don't touch it!
Here, poke at it with this stick.

April 09, 2017, 07:26 AM

Elk Hunter

quote:
Originally posted by Mars_Attacks:
Also don't use a 12 spline socket, it will just round it off.

Use a 6 sided socket. These newer little battery impact wrenches work very well. I have rattled many a stuck bolt off with my DeWalt 18v.

I just use two box end wrenches and lock them together for fulcrum, then grasp my fingers along the blade to pull the wrenches.

Stick a block of wood in the discharge to block the blade from moving.

Could be a left hand thread.

I have used an impact wrench to remove "stuck" nuts and bolts.

Elk

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April 09, 2017, 07:31 AM

4MUL8R

Internet threads state right hand conventional threads on Toro. Likely experiencing corrosion. I believe penetrating oil and an impact driver would work.

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Trying to simplify my life...

April 09, 2017, 07:34 AM

JALLEN

I think we may have found Olaf The Swede, the huge red haired fellow who tightened the oil drain fitting on my Volvos decades ago. His role was to make sure you didn't attempt foolish, non-revenue stunts like changing your own oil.

Luckily, I have enough willpower to control the driving ambition that rages within me.

When you had the votes, we did things your way. Now, we have the votes and you will be doing things our way. This lesson in political reality from Lyndon B. Johnson

"Some things are apparent. Where government moves in, community retreats, civil society disintegrates and our ability to control our own destiny atrophies. The result is: families under siege; war in the streets; unapologetic expropriation of property; the precipitous decline of the rule of law; the rapid rise of corruption; the loss of civility and the triumph of deceit. The result is a debased, debauched culture which finds moral depravity entertaining and virtue contemptible." - Justice Janice Rogers Brown

April 09, 2017, 07:42 AM

sourdough44

My methods would be, penetrating oil, 'PB Blaster', a tight fitting wrench, then some 'leverage'. That leverage could be a length of pipe on a 'breaker bar'.

A tight fitting socket or whatever gets the best bite in the nut. As posted, be sure you're wrenching the correct way. Something will give, hopefully you don't just strip the edge of the nut.

April 09, 2017, 07:52 AM

Skins2881

quote:
Originally posted by sourdough44:
My methods would be, penetrating oil, 'PB Blaster', a tight fitting wrench, then some 'leverage'. That leverage could be a length of pipe on a 'breaker bar'.

A tight fitting socket or whatever gets the best bite in the nut. As posted, be sure you're wrenching the correct way. Something will give, hopefully you don't just strip the edge of the nut.

That is likely to shear it. Try and use a impact gun instead. The breaker puts forces downward/upward instead of just rotational.

Jesse

Sic Semper Tyrannis

April 09, 2017, 07:59 AM

bubbatime

An impact wrench will zip it off in less than a second. Every man should own a compressor and good impact wrench, FYI.

______________________________________________________
Often times a very small man can cast a very large shadow

April 09, 2017, 08:22 AM

trapper189

Take the spark plug wire or wires off. Turn the wrench in the same direction the blade turns to cut grass. If the blade turns clockwise, turn the wrench clockwise, and vise versa. Works regardless of the threadedness of the bolts. Short six-point socket long breaker bar with a pipe over the handle. The handle from my car jack works for this.

Don't hit stumps, rocks, pipes, etc. It tightens the blade bolts if you do.

April 09, 2017, 08:26 AM

Mars_Attacks

It's a Toro, standard threads.

I changed lawnmower blades monthly at the Raptor Center. M destroyed blades faster than you could replace them.

Every last time they would be thoroughly stuck in place. I'd just give the bolt a whack on the head, then use two wrenches linked together, block the discharge with a 2x4 and pull like hell.

My little electric rattle wrench buzzes them off like it's nothing.

____________________________

Eeewwww, don't touch it!
Here, poke at it with this stick.

April 09, 2017, 08:48 AM

egregore

quote:
Originally posted by sourdough44:
Some of us don't own an 'impact gun'. Just saying.

quote:
Originally posted by bubbatime:
An impact wrench will zip it off in less than a second. Every man should own a compressor and good impact wrench, FYI.

Occasional use, "homeowner grade" air tools aren't that expensive if you already have a compressor capable of running them, and if you shop around, even better brands like Ingersoll-Rand and Aircat (one I've been using a lot of) still aren't bad. Or, with the new lithium-ion battery powered tools, you don't even need a compressor.

April 09, 2017, 08:48 AM

birddog1

I finally got it with the heat. They were conventional threads. The mower is only six months old so there was no corrosion although I did scored it was some penetrating oil last night. I think it was just over tightened, I bought it from an Amish dealer and I think they used a little too much muscle.

April 09, 2017, 08:49 AM

birddog1

quote:
Originally posted by bubbatime:
An impact wrench will zip it off in less than a second. Every man should own a compressor and good impact wrench, FYI.

I do have a 25 gallon compressor, may have to invest in a good impact wrench as well.

April 09, 2017, 08:55 AM

egregore

Any object that rotates at high speed will, or has the potential to, "self-tighten" the nut or bolt that holds it. Try and loosen a Honda crankshaft pulley bolt, or a screwed-on fan clutch some time.

It's better than having it come loose at high speed.

April 09, 2017, 10:32 AM

sigmonkey

You're a gun owner and you don't have Kroil?

You can make weasel pee with 50/50 ATF and Acetone.
(damned good Kroil Klone)

Some of the best penetrating oil ever.

Pretty sure the Jews used it to move the big stones across dry sand to build the pyramids.

_{"the meaning of life, is to give life meaning" ✡ Ani Yehudi אני יהודי Le'olam lo shuv לעולם לא שוב!}

April 09, 2017, 11:07 AM

C L Wilkins

quote:
Originally posted by birddog1:
I finally got it with the heat. They were conventional threads. The mower is only six months old so there was no corrosion although I did scored it was some penetrating oil last night. I think it was just over tightened, I bought it from an Amish dealer and I think they used a little too much muscle.

Excellent.

By the way, As mentioned PB Blaster is good stuff.

CW