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Brake Question on WD45

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LH

07-18-2002 11:01:26




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OK I've read all the archives on this topic regarding the pin that holds the brake shoes in place. I know the preferred method is todrill and tap the pin, then use a bolt to force the pin out. I really don't have the tools so that option is out. What I was wondering is where exactly does that pin get stuck, is it where it goes into the axle housing / rearend? or does it go deeper and stick in the differential? I was just wondering if heating the pin where it goes into the axle housing would possibly break it loose to where it could be turned with vice grips, then pulled free. I also read one post where they reccomended grinding the pin off, then driving it on through, but I dont see where it would be driven too if it extends very far. I havent been able to obtain an owners or service manual yet, so I really don't have a parts diagram in my head to go by. Thanks for any info.

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JMS/MN

07-19-2002 23:19:26




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 Re: Brake Question on WD45 in reply to LH, 07-18-2002 11:01:26  
Heat the pin. Apply a candle to the pin as it cools, allowing the wax to flow between the pin and the housing. If you're religious, use a blessed candle. If not, learn some prayers! Beats cussing!! Seriously, I think this works- just removed some manifold studs from a '37 WC- all with heat, some with same heat would not move without wax- it flows between the threads- all moved after the wax. Go figure! Neighbor didn't believe me about the wax theory. Went to his funeral last year- I think he knows the answer now, although I don't- I just use it.

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TednAllis

07-19-2002 13:46:27




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 Re: Brake Question on WD45 in reply to LH, 07-18-2002 11:01:26  
If the soaking doesnt work,using a torch through the hole in the bottom of the dif I sliced a section out of the pin, then drove the pin
in and cut off another piece untill the pin
drove all the way through and out.Then I removed the leftover inner pin with a pair of vice grips.A little spatter from cutting on the brake drum but it knocked right off.Replace the pins with new or make your own .005" under the original.What ever method You use let us know how it worked.
Ted

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Timber Beast

07-18-2002 16:52:31




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 Re: Brake Question on WD45 in reply to LH, 07-18-2002 11:01:26  
Howdy! Best of luck with your brake work. I had one on my WD that like to drove me crazy. We sprayed it with every penetrating liquid known to man, used heat, beat it with a half-dozen different sized hammers, and even tried freezing the pin in dry ice to try to get it to shrink up and gain us a little room. Nothing worked. We eventually cut the brake drum into small pieces so we could take the axle housing off that side ( won't come off until you do ) This pin was stuck on the inside( rear differential ) Once the axle housing was off we used a pipe wrench to force it to turn until we could twist it out. What a mess! Got a couple ideas that I picked up the hard way. First, on my WD there was a small inspection holeat the bottom of the housing the pin runs through. Stopper that sucker up and fill the brake compartment full of you favorite soaking stuff ( WD40, Marvel )Second when you get it apart, LIGHTLY grind the pin down where it seized, it will be easy to use the old pin as a model. This will not hurt the action of that pin as all it does is provide a pivot for the brake shoes. Last coat that sucker with never-seize before you put it back. Your great grandchildren will be able to take it apart with a pair of plyers. Best of luck, it can be a bear of a repair.

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Duey (IA)

07-18-2002 15:10:05




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 Re: Brake Question on WD45 in reply to LH, 07-18-2002 11:01:26  
LH,
That sucker sticks in the housing on both sides of the housing. Soak it a lot with penetrating fluid of your favorite kind and with a good vice grips, you may get it to come loose. They are all different. Some require a lot of heat, some just a few taps with a hammer to break loose the rust. Most stick tighter on the outside because of the exposer to the elements. Just be patient. Time and penetrating fluid will loosen it. Duey

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LH

07-18-2002 15:56:05




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 Re: Re: Brake Question on WD45 in reply to Duey (IA), 07-18-2002 15:10:05  
Thank Duey, I'll keep soaking and hope it eventually breaks loose.



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h.b. hUTCHENS

07-18-2002 15:55:03




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 Re: Re: Brake Question on WD45 in reply to Duey (IA), 07-18-2002 15:10:05  
Try using an air chisel (DULL) on the pin through the opeening in the botten of the housing while someone pulls on the pin. The vibration of thechisel seems to help breake them loose. H.B.



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