Paint stripping and bolts/nuts removal ideas?

  • Thread starter waltermayorga
  • Start date
  • Watchers 10
waltermayorga

waltermayorga

Joined
Jul 4, 2021
Messages
8
Location
Austin, TX
Hi folks, I just started disassembling an FJ40 and noticed some bolts are covered in old crusty paint and so rusty too. Looking for ideas to get rid of the paint and take the bolts out. I tried with an impact screw driver but it doesn't seem to work, I think is because of the paint not allowing it. Any help will be really appreciated
 
M1A1cruiser

M1A1cruiser

SILVER Star
Joined
Dec 17, 2010
Messages
371
Location
PNW bound
Although you've stated you've tried the impact screwdriver, I can say I've had good luck with such a tool - especially at those large screws on the windshield frame hinges, and an imact bit to knock the hinge pins loose on the doors....

I think everyone will say to hit them with some kroil or PB Blaster or similar and let them sit for a while to get down into the rusted-tight threads.
Just depends on where you're working and what tools/lubricants are possible in that area. There are some areas that are amenable to heat, but if you're on the body... probably not.

Anyway, there's no one magic formula that I've found, and I've suffered any number of broken bolts. Hope this is somewhat helpful. Perhaps tell the community exactly which bolts you're stuck with and we can tell you what other pieces to remove first to allow for leverage or take some weight off the union.

HTH, Travis.-
 
swelltimes

swelltimes

SILVER Star
Joined
Aug 9, 2012
Messages
1,086
Location
Western MA
Hi folks, I just started disassembling an FJ40 and noticed some bolts are covered in old crusty paint and so rusty too. Looking for ideas to get rid of the paint and take the bolts out. I tried with an impact screw driver but it doesn't seem to work, I think is because of the paint not allowing it. Any help will be really appreciated
You could try using a sharp razor knife and awl to scrap off the paint, and clean out the groves for screws / sides for bolts.

After working on my truck for a couple of years, I learned about the JIS standard that Toyotas and other makes use. While the screws in our trucks may look like a standard phillips head, they're slightly different, and warrant a different tool. Google "JIS screw driver" and you should find some good options. Believe there was a thread posted recently with good info on JIS stuff.

Also, I highly recommend using 6-point sockets, rather than 12 point. They seem to get a better grip on bolts, which is a critical factor when trying to extract something that's stuck.

@M1A1cruiser has good suggestions - post up some pics of what you're working on, and what you're working with, and you should get some more good info and help.
 
Z

zerotreedelta

Joined
Nov 29, 2020
Messages
588
Location
Wausau WI
Depending on your plans for paint, a loss/open blasting gun works well, both to clean the heads as well as any exposed threads. Cheap but effective...just throw the hose in a 5 gallon bucket of media. Don't need a big compressor for small jobs like that either. It does make a bit of a mess to clean up afterward, though, and you'll want to cover up to avoid the flying media.

Amazon product

That said, this only works for stuff you're planning to repaint vs preserve patina...but it is also handy in general around the shop.
 
John McVicker

John McVicker

SILVER Star
Joined
Jul 11, 2005
Messages
3,586
Location
Big Pine, CA
Don’t use an powered impact for what you describe. Get a proper fitting screwdriver as stated, try to get an JIS… super helpful in this situation.

in the meantime, use the closest fitting you can scrounge and hit the screwdriver with a large hammer while attempting to turn it. Control it…hit it and you should be able to get them out. Don’t rush it.

On Amazon you can purchase a ‘impact JIS screwdriver’…not a powered one.
 
waltermayorga

waltermayorga

Joined
Jul 4, 2021
Messages
8
Location
Austin, TX
Thanks for your help. With lock pliers I was able to take the rear doors bolts (unfortunately one bolt head broke leaving the threads inside).
16377173396702845567405674337263


Now I'm struggling with the bolts of he windshield frame. I was able to take one out using the impact screwdriver but there are other 3 that I'm not able to take out (already remover the outer paint with a flat screwdriver and put some lubricant on them). Same case with the bolts for the cap of the air blower.
16377176201906875848765183628432

16377176658112169910859944065135


Last but not least, struggling with one of the 4 bolts that go with the fenders and chassis (now the head is rounded and the socket cannot take it anymore).
16377178898867931262598879139371
 
John McVicker

John McVicker

SILVER Star
Joined
Jul 11, 2005
Messages
3,586
Location
Big Pine, CA
Yes, you’ve got some problems…but likely solvable with patience and the right stuff. Do your best to NOT BREAK any more bolts.

Get yourself some type of good rust penetrating spray. I think Kroil is the best…but you likely will need to order on line. Readily available is PB Blaster and/or Liquid Wrench…both very good.

The problem you will have is getting the stuff actually on the threads. Clean the heads up the very best you can and then ‘aim’ the penetrant into the threads as best you can. The better this part…the better the results.

And go slow when actually using the tool…turn the bolt or screw in BOTH directions. Just a bit back and forth, then spray some more. Repeat.

Good Luck.
 
Last edited:
Clutchee

Clutchee

I'm fun sized!
Joined
Apr 19, 2004
Messages
4,187
Location
Hotel M-F, home weekends!
Use Kroil….. soak the bolts and anything you want to remove.
My method, before work, spray them down…. Get home from work, spray them down…

Do this, 2-3 days.

When/if they come out…. Slowly remove a few threads… then spray again.

Patience is your friend.
 
mattressking

mattressking

10 digits to freedom
Joined
Nov 27, 2016
Messages
2,601
Location
Idaho
If you're doing this a lot, 50/50 acetone/ATF mix. Spray then impact driver with the correct JIS tip for the screws. Soak for a day or so or more and recoat to relieve the corrosion.
 
Last edited:
graham5david

graham5david

Joined
May 3, 2016
Messages
1,258
Location
odessa, tx
Use Kroil….. soak the bolts and anything you want to remove.
My method, before work, spray them down…. Get home from work, spray them down…

Do this, 2-3 days.

When/if they come out…. Slowly remove a few threads… then spray again.

Patience is your friend.
Kroll is great
 
77mustard40

77mustard40

SILVER Star
Joined
Nov 28, 2010
Messages
1,880
Location
Austin, TX
If you're doing this a lot, 50/50 acetone/ATF mix. Spray then impact driver with the correct JIS tip for the screws. Soak for a day or so or more and recoat to relieve the corrosion.
I mix mine 3 ways adding 1/3 diesel by volume to the acetone & ATF. It penetrates better and is more effective than any over the counter product I’ve tried.
 
Dizzy

Dizzy

Joined
Feb 5, 2018
Messages
2,436
Location
Santa Fe, New Mexico
It will always be tricky getting a good electrical ground, but a weld puddle, or a welded nut hasn't been a problem for screw removal. Even around paint, it is not too scarring. A TIG torch, or stick welding is what I reach for first, because, breaking the captive nuts on many of these body panels is something that I don't know how to fix, and the welding process is the least amount of force needed to remove the screw.

Cover your glass from weld spatter. And, if you have to remove weld spatter from glass, a tiny bit of spray oil (avoid weatherstrip) and a wood chisel or utility razor followed by 0000 steel wool will get your glass clean and smooth - so it doesn't damage your windshield wiper or ice scraper blade, and it cleans without streak or catching lint from rags.
 
Last edited:
ceylonfj40nut

ceylonfj40nut

Waiting for Barn Time
SILVER Star
Joined
Jan 11, 2015
Messages
3,991
Location
TX
I sucked it up and bought this. It is amazing for what you need. The shaft has nut on it that allows you to place a wrench on it and turn while you press the screw driver onto the Phillips head.

Amazon product
 
Last edited:
John McVicker

John McVicker

SILVER Star
Joined
Jul 11, 2005
Messages
3,586
Location
Big Pine, CA
^^^

And that shaft that allows you to turn it with a wrench makes a Whole lot if difference.👍
 
JohnnyFish

JohnnyFish

GOLD Star
Joined
May 19, 2016
Messages
392
Location
Austin, TX
I sucked it up and bought this. It is amazing for what you need. The shaft has nut on it that allows you to place a wrench on it and turn while you press the screw driver onto the Phillips head.

Amazon product

I bought the cheaper Vessel set and all it has on the shaft is some knurling. A hex nut there would be far more useful.
 

Similar threads

Tennessee80
Replies
3
Views
241
Living in the Past
Living in the Past
V
Replies
0
Views
144
VT FJ40
V

Users who are viewing this thread

Top Bottom