Cleaning/fixing threads

[RatLabGuy]

I have some nuts/threads oin the 4Runner body which seem to be a bit buggered up/have metal fragments in em from buggered alloy bolts etc.
What's the best way to clean/straighten up the threads? i was debating just runing a tapered Grade 8 threw 'em, but then wonder if a tap would be a better bet. (need excuse to buy tap/die set anyway...)

 

[Blkvoodoo]

use a tap and LOTS of lube, work the tap back and forth, if you feel it bind, change directions to clear the debris.

then use anti sieze on the new bolts.

Been there done that on the hard top bolts, they get to be a pain with age.

PB Blaster is your friend

 

[rattlecanpaint]

I second the tap idea. Any excuse to get new tools is good. A grade 8 bolt will probably just screw up the thread more.

 

[upnover]

Well, again, I disagree. If you are gonna use a tap, use a wore out one. A tap will cut, not what you wanna do. I bought a Snap on thread chasing kit off of Ebay for about a thrid the price. Have used it often.

 

[rbo1577186]

I have used round brass/steel brush to clean out threads. Cleaning/chasing taps work better, but it's what I had at the time.

Summit racing sells chasing kits and brushes something like I mentioned.
http://store.summitracing.com/partdetail.asp?autofilter=1&part=MOR%2D61820&N=700+%2D111595+115&autoview=sku