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Jan 23rd, 2013
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Frozen set screw on brake axle #13211572 07/11/19 05:10 PM
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Stump jumper Online Content OP
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It has been sitting in a puddle of PB Blaster since Sunday morning. I have a socket type allen wrench and a strikable impact. Impact is last resort. Someone said to apply heat directly to the set screw. I am a little concerned about the seals on the hub. If it comes down to heat I plan to wrap the rear of the hub with a wet rag. I have been lightly tapping the hub thinking maybe the vibration will allow some of the PB Blaster to flow along the threads. I am thinking last resort will be to turn the set screw upside down and drill a hole and the use and easy out.


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: Frozen set screw on brake axle [Re: Stump jumper] #13211605 07/11/19 05:28 PM
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T Bird Online Content
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Bump it loose with air impact.


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USAF "Thunderbirds" Alumni 1985-1989

Okie by birth, Texan by choice.
Re: Frozen set screw on brake axle [Re: Stump jumper] #13211656 07/11/19 05:51 PM
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Cast Offline
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Quit wasting time man! Get out the big red wrench.


Cast


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I have a short attention spa
Re: Frozen set screw on brake axle [Re: T Bird] #13211697 07/11/19 06:13 PM
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Originally Posted by T Bird
Bump it loose with air impact.

I don't have one and the screw is already an little buggered up


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: Frozen set screw on brake axle [Re: Stump jumper] #13211754 07/11/19 06:56 PM
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T Bird Online Content
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Vice grips and hammer.


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USAF "Thunderbirds" Alumni 1985-1989

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Re: Frozen set screw on brake axle [Re: Stump jumper] #13211759 07/11/19 06:57 PM
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Cast Offline
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You better heat it. Keep messing with it and you will be drilling it out. Take my word for it. I restored a 1953 Ford tractor.


Cast


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I have a short attention spa
Re: Frozen set screw on brake axle [Re: Cast] #13211774 07/11/19 07:08 PM
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Originally Posted by Cast
You better heat it. Keep messing with it and you will be drilling it out. Take my word for it. I restored a 1953 Ford tractor.

Yep, if it does not come out with just thr PB Blaster soaking the torch comes out. Neighbor who is a McGyver type thinks the heat should be applied to the hub. Others say directly to the screw.


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: Frozen set screw on brake axle [Re: Stump jumper] #13211884 07/11/19 08:32 PM
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Cast Offline
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Put the heat right on the screw. Wrap the seals with a sopping wet rag. The heat will burn the crud out of the threads and it will back right out while it is hot. Be gentle do not force. If it doesnt come, more heat. I have a rosebud and big tanks because of stuff like this.


Cast


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Re: Frozen set screw on brake axle [Re: Stump jumper] #13212020 07/11/19 10:59 PM
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rb7764 Offline
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Agree 100%. Heat on set screw - lots of heat. Work screw back and forth. If needed, tap allen wrench with hammer in each direction. repeat if needed. You will need to heat it hotter than a normal propane torch can get. Rosebud is also what I use.

Re: Frozen set screw on brake axle [Re: Stump jumper] #13212292 07/12/19 02:50 AM
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smooth move Offline
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heat is last resort. try a 50/50 mix of acyetone and trans fluid.really thin lubricant that penetrates good.


es le bon ton roulet
Re: Frozen set screw on brake axle [Re: Stump jumper] #13212324 07/12/19 03:21 AM
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Looks like it is time for the screw extractor. I have replacement set screws. Next step will be drill but concerned about filings in the hub. I figure if I turn it down I can drill with minimal filings and then flush it several times.


2200 Bay Champ/200 Mercury Optimax
2017 Tundra TSS 4x4 Crewmax 5.7L
Re: Frozen set screw on brake axle [Re: smooth move] #13212333 07/12/19 03:28 AM
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Originally Posted by smooth move
heat is last resort. try a 50/50 mix of acyetone and trans fluid.really thin lubricant that penetrates good.

This^^^ Used it for many years. Its stuff every household has.


If the fish don't bite your not baiting right...
Re: Frozen set screw on brake axle [Re: Stump jumper] #13212430 07/12/19 11:10 AM
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Cast Offline
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Have you decided not to use heat?


Cast


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I have a short attention spa
Re: Frozen set screw on brake axle [Re: Stump jumper] #13212456 07/12/19 11:45 AM
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smooth move Offline
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if you drill it, use a left handed(counter clocklwise)bit. i've had the screws come on out after starting the drilling with left hand bits.


es le bon ton roulet
Re: Frozen set screw on brake axle [Re: Stump jumper] #13212783 07/12/19 04:20 PM
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bronco71 Offline
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Originally Posted by Stump jumper
Looks like it is time for the screw extractor. I have replacement set screws. Next step will be drill but concerned about filings in the hub. I figure if I turn it down I can drill with minimal filings and then flush it several times.

coat the bit with grease to catch the filings....


1999 Triton TX21/225 Mercury Optimax
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