[PhilThefarmer]

so, I am dismanteling an old seized tec 8hp for fun, and for my own knowledge, one of the 2 pulley set screw is stuck, i put wd40 in in, but it just doesn't want to move, what should I do?

 

[1132le]

heat

 

[PhilThefarmer]

I don't have acces to a torch or something to heat it up

 

[1132le]

go buy one 15 bucks

 

[Ziggy65]

You could try a good penetrant such as Liquid Wrench, Kroil etc. WD40 is not that great of a penetrant.
Apply the penetrant every day for a few days. Give the screw a few good wacks with a hammer using a punch or allen key, or air hammer with a pointed tip if you have one.

 

[LenD]

I don't have acces to a torch or something to heat it up

go buy one 15 bucks

Also good for starting charcoal/briqs for a bbq 😁

 

[gpguy2008]

Be aware that someone along the line may have had it apart and reinstalled with loctite. Heat is the only way especially if they used the high strength product. I assume it is recessed so heating followef by pb blaster or kroil. Let it sit and penetrate. Also when I worked in electric motor shop sometimes TWO setscrews had been installed with locktite on critical assemblies.

 

[PhilThefarmer]

Be aware that someone along the line may have had it apart and reinstalled with loctite. Heat is the only way especially if they used the high strength product. I assume it is recessed so heating followef by pb blaster or kroil. Let it sit and penetrate. Also when I worked in electric motor shop sometimes TWO setscrews had been installed with locktite on critical assemblies.

I don't think that is the case, as I was able to remove one with wd40 only, no heat

 

[orangputeh]

I don't think that is the case, as I was able to remove one with wd40 only, no heat

as mentioned vibration may work. and patience. I use a brass hammer and have removed almost everything by vibration thru hammering. just be sure not to damage the set screws.

 

[dr bob]

Don't forget to have a good impact (screw) driver in your war-tools chest. With a good set of impact-rated hex drivers. Sometimes the combination of the sharp impact from the hammer and the sharp twist from the driver are enough to break loose some stubborn fasteners. I think I've had my 1970's vintage Snap-On driver kit since it was new. A bit spendy at the time, but it's certainly paid for itself many times over in the decades since.

https://www.amazon.com/TEKTON-2905-8-Inch-Manual-7-Piece/dp/B000NPPATS/ref=sr_1_40?keywords=impact+driver&qid=1652123963&sr=8-40

 

[Tony-chicago]

I need that. In fact if count the number of times I could have used that in the past, be worth thousands. ... and I would be younger

 

[cpchriste]

You should tell us what head or socket is on this setscrew. Some members are assuming they understand and may be inadvertently giving bad advice.

 

[JLawrence08648]

A gex bit in an impact driver may work.

 

[tabora]

I don't have acces to a torch or something to heat it up

go buy one 15 bucks

While you can get a complete propane torch kit for $25ish, I would recommend getting a MAP torch kit; hotter and more useful. About $50ish. (And, of course, higher in Canada.)

 

[db130]

I invested in a $50 MAPP gas torch back in 2004 when I had to replace the rear calipers of the car I was driving at the time; the brake line fittings were pretty crusty and would not loosen even with the proper brake line wrench. I was able to loosen the brake lines on both calipers with the torch, so it basically paid for itself the first time I used it (it has since paid for itself many times over).

You will not regret the purchase.

 

[WrenchIt]

so it basically paid for itself the first time I used it (it has since paid for itself many times over).

Over the years, when faced with these problems and knowing a tool I did not own would solve the problem, I went ahead and invested in a good version of that tool. Buy a cheap one, and you will usually have to replace it. It's funny how these 'one time use' tools get used again when you are in a pinch. This is especially true for the commonly used stuff. How many guys here do not own a torch?*

As you said, the first time pays for the tool, from then on its gravy.

*Over the years I've thrown away a number of propane torches - picked up at house sales, or flea markets. Finally settled on an air acetylene Turbo Torch with several tips (mostly for plumbing use). I use that way more often than my oxy acetylene rig.

 

[JLawrence08648]

I agree with Wrenching, look on Craigslist or Facebook and you can buy a used plumber's torch and B tank, acetylene gas, for the same price or a little more than a new MAPP, it's hotter and 1/20th the gas cost, hotter, still portable, more versatile. I have propane, MAPP, B tank, and oxy-acetylene. I use the B tank the most.

 

[DJDC]

so, I am dismanteling an old seized tec 8hp for fun, and for my own knowledge, one of the 2 pulley set screw is stuck, i put wd40 in in, but it just doesn't want to move, what should I do?

place in sun ,shield with dark cover allows sun to heat up