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Old 10-31-2012, 11:19 AM   #1
Kens TJ's Avatar
Join Date: Jan 2012
Posts: 71
Cleaning Rust from inside of frame

So I've read some post about rusty frames and how they rust from the inside out. So I went out and checked my 2001 TJ and stuck my finger in one of the holes by the skid plate. Sure enough there's a bunch of crap in there. My question is whats the best way to remove the chunks of rust from inside the frame and then treat the metal?

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Old 10-31-2012, 11:23 AM   #2
SinfulDragon's Avatar
Join Date: Jun 2011
Location: Indiana
Posts: 981
I drilled 1/2" drainage holes in my frame, right in front of the rear tires (flat part of the frame right before is slopes up at the back tires).
Then put hose in from front and back and flush until clean.

I think Eastwood is the name of the company that makes a sealant for the internals of your frame.

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Old 10-31-2012, 11:57 AM   #3
wedu22's Avatar
Join Date: Sep 2011
Location: SECT
Posts: 1,016
^^ x2 what SinfulDragon said. Here is a good read on it.
Eastwood Internal Frame Coating -
75k miles (6/28/13) 04 Sport, 4.0L 5spd, D44/30-186mm front, 31" Goodyear Wrangler MR/T
Alice the Beagle - "I wanna ride in the Jeep, I'll give you my bone."

- Semper Paratus
You know you drive a TJ when you have the parts for the mod, the right tools for the job, a BFH & still need a Sawzall to get the job done!
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Old 10-31-2012, 05:08 PM   #4
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Join Date: Jul 2012
Location: Des Moines, Iowa
Posts: 591
This is up to you because it is an untested modification, but since they are apparently designed to fill with water and hold it inside indefinitely, I blew out the loose rust and drilled a series of small drain holes in mine. Painted the drilled holes, of course, and treated inside with rust catalyzing primer and 3M Rustfighter I. Time will tell how that works, and I'd have tried the Eastwood product if I'd known about it. However, I've had good results on other vehicles by my method before.
In God we trust.
All others bring data.

'02 Sport, soft top, 6 cylinder
5 speed manual, 4" lift, 33.5" tires
~144K miles
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