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Bionicdodge.Com  |  Bionic Tech  |  Shop Equipment, Tools, and Tips (Moderators: donram360, adamsredlines)  |  Topic: Pexto PX-36 Brake 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: Pexto PX-36 Brake  (Read 1218 times)
98Dak408
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« on: November 19, 2017, 06:24:21 AM »

Found this somewhat abused Pexto 36” sheet metal brake in the yard of a picker in Fort Wayne Indiana.  The price was right, but it was left outside and rusted up solid.  I am in the process of tearing it completely down, removing rust…and freeing up frozen parts.  The needle bearings are also toast and I’m in the process of finding replacements.  I do think I can refurbish it and still save some money in leu of buying one outright in acceptable condition.   This is a finger brake with a nice range of small finger widths and is rated for 16 gauge sheet metal.  It is one hunk of cast iron at around 800# I think.  Once I get it back together I'll make a stand for it.


« Last Edit: November 19, 2017, 06:27:11 AM by 98Dak408 » Logged

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« Reply #1 on: November 19, 2017, 05:10:21 PM »

Thats a great find Richard! Can't wait to see what it looks like torn down.

Your gonna have WW2 era Willy's Jeep fans contacting you for 16 and 18 gauge body panels.  I believe the International Scouts and Travelalls used 18 gauge steel also.
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2001 Ram QC 1500: 360cid, 2wd, K+N CAI, SCT tune, Autolite AP3923\'s, MP 1.7 rollers, MP pushrods, SST rims, Hypertech coil, 10.2mm wires, Gibson super truck exhaust, 3\" magnaflow cat, modified Y pipe, modified kegger, 3.92 LSD, MSD-6, Transgo shift kit, 4.7L Injectors, Hipotek 52mm TB, (Currently under construction for a 408 build)

POS Chevy Trailblazer 4x4, the 4x4 is the only good part. This thing is a turd.

2007 Chrysler 300 2.7L "Wifes car" No complaints other than it slow. Seems like the more I beat on it the faster it goes.
98Dak408
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« Reply #2 on: November 20, 2017, 04:44:13 AM »

Quote
Your gonna have WW2 era Willy's Jeep fans contacting you for 16 and 18 gauge body panels.  I believe the International Scouts and Travelalls used 18 gauge steel also.
My father owned a total of three Dodge Power Wagons, P37 Weapons/Troop Carriers (Korean War vintage).  That's what I learned to drive in. lol  While my Pexto brake could make a number of things for it, a wider brake would be need for a number of things like the tails gate, hood, etc. If I later find the need, I would consider a 6-8' brake for the future.
« Last Edit: November 20, 2017, 04:46:21 AM by 98Dak408 » Logged

98Dak408
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« Reply #3 on: January 14, 2019, 12:50:01 PM »

I finally figured out how to get the brake apart.  I sent several pictures explaining my dilemma to Roper Whitney but the foreman on the factory floor kept ignoring my requests and I finally gave up.  The adjustment screws were broken off and frozen into the steel.  I tried several times to weld nuts on and back them out with heat but the nuts kept breaking off.  So I finally bought a carbide drill it went through the hardened screws like butter.  After cleaning out the debris I saved one thread but had to Heli-coil the other one.  It was a bugger because the thread engagement is about 1 1/2" so I stacked two Heli-coil inserts back-to-back.  Once I got the adjusting screws out I was able to knock the pins out of the upper ram which allowed me to remove it.   Then I had access to the inner shaft and was able to remove the roll pins that hold in the two cam lobes and get the shaft out.  Now I am going to use paint stripper to remove the paint, fix any damaged parts, paint it, and put it back together.  Then I can make my oil pan. 
« Last Edit: February 05, 2019, 07:57:27 AM by 98Dak408 » Logged

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« Reply #4 on: January 14, 2019, 01:00:25 PM »

This Rust-Oleum Hammer paint is close enough to the original color but I may just go with the gray or silver that Home Depot stocks which I can buy the number of cans I acutally need instead of buying 6 at a shot.  If I need 7 cans, I will have to buy another 6 cans of the green which I don't want to do. 

https://www.homedepot.com/p/Rust-Oleum-Stops-Rust-12-oz-Hammered-Verde-Green-Protective-Spray-Paint-6-Pack-7219830/202058746

The only single cans I can find of the green on-line are almost double the price + shipping.

Note: The brake was painted over by someone previously with gray as you can see in the pic above.
« Last Edit: January 14, 2019, 01:02:44 PM by 98Dak408 » Logged

B1llyw
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« Reply #5 on: January 14, 2019, 02:46:20 PM »

That is a great project.    Looking forward to seeing the final result.
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Bill White - 2017 Ram 1500, 2017 Jeep Compass (new body style), 2017 Challenger SXT Super Trak Pak
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« Reply #6 on: January 14, 2019, 04:47:12 PM »

Its always good to hear progress, sorry it was so involved.
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2001 Ram QC 1500: 360cid, 2wd, K+N CAI, SCT tune, Autolite AP3923\'s, MP 1.7 rollers, MP pushrods, SST rims, Hypertech coil, 10.2mm wires, Gibson super truck exhaust, 3\" magnaflow cat, modified Y pipe, modified kegger, 3.92 LSD, MSD-6, Transgo shift kit, 4.7L Injectors, Hipotek 52mm TB, (Currently under construction for a 408 build)

POS Chevy Trailblazer 4x4, the 4x4 is the only good part. This thing is a turd.

2007 Chrysler 300 2.7L "Wifes car" No complaints other than it slow. Seems like the more I beat on it the faster it goes.
98Dak408
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« Reply #7 on: January 16, 2019, 02:48:38 AM »

It's taking 3 applications of paint stripper to remove the previous coats.  I've got the bottom section stripped now.  It will take another day to strip the other parts.  (I hate working with paint stripper.) 
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« Reply #8 on: January 16, 2019, 02:49:35 AM »

Try not to get high!  Smile
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Bill White - 2017 Ram 1500, 2017 Jeep Compass (new body style), 2017 Challenger SXT Super Trak Pak
98Dak408
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« Reply #9 on: January 16, 2019, 02:52:03 AM »

I had to leave the shop several times for a breath of fresh air.  lol
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98Dak408
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« Reply #10 on: February 05, 2019, 07:43:04 AM »

Making some headway.  Bottom internals installed.  Now I have to machine a bearing driver to press the new roller bearings into the body of the brake for the apron.






Funny, top pic looks kind of blue to me and the bottom pic looks green.  The paint is actually green but depending upon the light it looks blue.  lol
« Last Edit: February 05, 2019, 08:02:52 AM by 98Dak408 » Logged

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« Reply #11 on: February 05, 2019, 05:51:33 PM »

Looking good Richard!
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2001 Ram QC 1500: 360cid, 2wd, K+N CAI, SCT tune, Autolite AP3923\'s, MP 1.7 rollers, MP pushrods, SST rims, Hypertech coil, 10.2mm wires, Gibson super truck exhaust, 3\" magnaflow cat, modified Y pipe, modified kegger, 3.92 LSD, MSD-6, Transgo shift kit, 4.7L Injectors, Hipotek 52mm TB, (Currently under construction for a 408 build)

POS Chevy Trailblazer 4x4, the 4x4 is the only good part. This thing is a turd.

2007 Chrysler 300 2.7L "Wifes car" No complaints other than it slow. Seems like the more I beat on it the faster it goes.
98Dak408
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« Reply #12 on: February 06, 2019, 08:57:13 AM »

Thanks Chris! 

I also need it to make an air cleaner for my dual throttle body tunnel ram.  I am attempting to make one using a K&N Viper filter.  The two dinky filters I was using before were costing about 24 crank hp.  I'd like to get that back with an air cleaner.
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98Dak408
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« Reply #13 on: February 06, 2019, 12:28:31 PM »

Bearing driver made.

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98Dak408
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« Reply #14 on: February 14, 2019, 11:35:07 AM »

The brake is rebuilt albeit the scars from years of improper use.  Everything moves freely.  Now I need to make some handles and a back-guide.  I also have to make a stand for it so I can put it to use.


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