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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

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Old 01-17-2010, 05:17 AM   #1
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How to remove rust from INSIDE box frame?

Just wondering if anyone knows how to remove rust from the INSIDE of box iron?
I'm doing a frame off resto on my truck and need to know how to get rid of rust inside the box frame.
Can't get inside with the sandblaster.

I'm thinking some sort of acid dip or something?...

If anyone know how I'd love to hear about it!

Thanks!
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Old 01-17-2010, 06:48 AM   #2
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sand blast it thats really the only way i know how
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Old 01-17-2010, 02:38 PM   #3
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what is the consistency of POR15? possible you could by some and use a spray gun to spray in there? it wouldn't remove it but it would convert it on the inside... maybe i have the wrong idea about this stuff, i've never used it.
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Old 01-17-2010, 02:43 PM   #4
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If the frame is bare you could stand on end and let the flakes fall out , with some tapping help. Then get a loooooooong wand up in there n apply used oil or something like that, or POR or Rust Bullet.
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1988 Toy pu 4x, 22re, 5:29 gears font and rear, BFG 33/10.50/15 AT'S, American racing 15/8's rims, Downey Header, Borla Exhaust, Centerforce dual friction clutch, Magnaflow Cat, Schneider Cam, Spectre open cone air filter, 3" TG SAS, 3" NWOR Rear leafs and 6" shackles/added leafs. 12 / 10 " Bilsteins, SR5 Bucket Seats, Transfer case E brake. Lce head installed 5/09, Rotella t6 5/40 Syn / Toyota filter - 90915-YZZG3. / USMC /
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Old 01-17-2010, 02:45 PM   #5
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Start with a better frame.
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1987 runner, sas, built housing, rebuilt motor, swapped from auto to manual with dual cases and a twin stick, detroit rear, locked front, home brew front bumper, winch w/ synthetic rope, sliders, tg dual crossmember skid plate, 4.88s, 35" km2s, and the start of an exo.
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Old 01-17-2010, 02:49 PM   #6
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Long wand sandblaster is the only thing that i can think of. and then use the same technique to paint it. Just make sure to cover all surfaces so you don't have the same problem in the future.
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Old 01-17-2010, 04:19 PM   #7
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I think Slacker covered some of his frame work on his Trekker frame in his Trekker build-up thread.
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Old 01-17-2010, 04:29 PM   #8
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I've done it a couple of ways

"wet blast" ... which is a hi pressure water based "spray" which includes sand ... works awesome , but expencive
Click the image to open in full size.

I have also spent my own personl time doing it , about 6 hours , with a hi pressure hose banging and scraping

Click the image to open in full size.


then both were frames treated with POR 15 inside and out .. using a "wand"

Click the image to open in full size.

Click the image to open in full size.

.
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Old 01-17-2010, 06:49 PM   #9
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I cant afford to do a strip down to frame, but the wand set up will work, can you give more info on that setup.
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1988 Toy pu 4x, 22re, 5:29 gears font and rear, BFG 33/10.50/15 AT'S, American racing 15/8's rims, Downey Header, Borla Exhaust, Centerforce dual friction clutch, Magnaflow Cat, Schneider Cam, Spectre open cone air filter, 3" TG SAS, 3" NWOR Rear leafs and 6" shackles/added leafs. 12 / 10 " Bilsteins, SR5 Bucket Seats, Transfer case E brake. Lce head installed 5/09, Rotella t6 5/40 Syn / Toyota filter - 90915-YZZG3. / USMC /
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Old 01-17-2010, 06:54 PM   #10
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It's something that you can rent from homedepot or lowes I believe.
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Old 01-17-2010, 07:03 PM   #11
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or any equipement store like around here mullins should. but i would have to agree with the above post lowes or home depot should carry them to rent
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Old 01-17-2010, 07:21 PM   #12
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Do you know if it will pass a thinned down oil of sorts.
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1988 Toy pu 4x, 22re, 5:29 gears font and rear, BFG 33/10.50/15 AT'S, American racing 15/8's rims, Downey Header, Borla Exhaust, Centerforce dual friction clutch, Magnaflow Cat, Schneider Cam, Spectre open cone air filter, 3" TG SAS, 3" NWOR Rear leafs and 6" shackles/added leafs. 12 / 10 " Bilsteins, SR5 Bucket Seats, Transfer case E brake. Lce head installed 5/09, Rotella t6 5/40 Syn / Toyota filter - 90915-YZZG3. / USMC /
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Old 01-17-2010, 07:49 PM   #13
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I wouldn't use a sand blaster for that. Any kind of paint sprayer should work though.
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Old 01-17-2010, 08:11 PM   #14
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I would think a blast of used motor oil inside would work, but i have always wondered if later you welded something, would it kind of burn in there a bit.
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1988 Toy pu 4x, 22re, 5:29 gears font and rear, BFG 33/10.50/15 AT'S, American racing 15/8's rims, Downey Header, Borla Exhaust, Centerforce dual friction clutch, Magnaflow Cat, Schneider Cam, Spectre open cone air filter, 3" TG SAS, 3" NWOR Rear leafs and 6" shackles/added leafs. 12 / 10 " Bilsteins, SR5 Bucket Seats, Transfer case E brake. Lce head installed 5/09, Rotella t6 5/40 Syn / Toyota filter - 90915-YZZG3. / USMC /
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Old 01-17-2010, 11:11 PM   #15
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use POR15, its like 50 bucks but totally worth it..
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Old 01-18-2010, 08:07 AM   #16
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it would prob take a gallon.... its almost 150 bucks.
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Old 01-19-2010, 10:16 AM   #17
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Someone forwarded me a link to these guys.
It's what I'm looking to get done but to far away.
Gonna do some more digging and see if I can get someone closer

http://www.striprite.net

Good before & Afters in the pics section
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Old 01-19-2010, 11:22 AM   #18
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If you can't get a better frame try this
http://www.stovebolt.com/techtips/ru..._derusting.htm
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Old 01-19-2010, 04:10 PM   #19
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dumping oil into your frame is NOT an enviromentally responcible thing to do .. it is like driving around an oil slick ..


although it will work for a while .. you will have to continue the process year after year




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Old 01-19-2010, 06:29 PM   #20
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Well if i did the oil method i would let it sit for a bit, besides my oil pump drips too. Just a wee bit though.
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Old 01-19-2010, 06:29 PM
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