Recent Topics
Frys Intel Core i5-4690K $159 In store pickup.
by BigD1
Today at 02:32 AM
SuperTech 5W30 Motor Oil, 5-Quart $9.35
by BigD1
Today at 01:58 AM
'16 Highlander vs. new Pilot
by benjamming
Today at 01:37 AM
5w30 vs 5w30 in a 2014 toyota yaris
by golddredgewater
Today at 12:38 AM
toyota yaris. 5w20 vs 5w30
by golddredgewater
Yesterday at 11:47 PM
Mobil advertisement from the '80s Australia
by Shannow
Yesterday at 11:44 PM
Curious, engine tick gone with different filter.
by Kuato
Yesterday at 11:41 PM
OCI advice for a newbie...
by Starman2112
Yesterday at 10:24 PM
Rain-X 2-in-1 orange washer fluid stinks!
by mclasser
Yesterday at 10:02 PM
Little plastic unicorns...
by Shannow
Yesterday at 09:20 PM
BJ's Price club Pennzoil Plat 10w-30 at $3.33/qt
by 69GTX
Yesterday at 09:15 PM
Master Cylinder question
by mike7139
Yesterday at 09:15 PM
Newest Members
TexTac, golddredgewater, Fromsauga, Mortimer, BreakerBreaker
56156 Registered Users
Who's Online
21 registered (charlesb2003, Atesz792, 01_celica_gt, bruno, citationxeleven, 2 invisible), 403 Guests and 157 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
56156 Members
66 Forums
241218 Topics
3907770 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3228556 - 12/26/13 06:25 PM O2 bolt removal
chartrue2 Offline

Registered: 12/28/06
Posts: 13
Loc: marlton, new jersey, usa
Hi all--suggestions needed as to how to remove the rusted nuts off the studs that hold the O2 sensor on my '92 Toyota truck. Have tried soaking in PB Blaster and Liquid Wrench but the very rusted condition has prevented my removing them so far. What do you suggest?

#3228569 - 12/26/13 06:43 PM Re: O2 bolt removal [Re: chartrue2]
Burny Offline

Registered: 10/20/05
Posts: 74
Loc: Chesapeake
get a dremmel with a grinder wheel and try to notch a groove in the top for a flat head screwdriver. I had this issue on my 91 4runner and ended up doing that.

#3228578 - 12/26/13 06:50 PM Re: O2 bolt removal [Re: chartrue2]
Chris142 Offline

Registered: 06/05/03
Posts: 13232
Loc: apple valley, ca
02 Wrangler super-s 10w30
87 F250 delvac 15w40
04 Tahoe super-s 5w30
Z400 Lucas 10w30
KLR250 Maxima 10w40
Can am maveric delo 5w40

#3228609 - 12/26/13 07:21 PM Re: O2 bolt removal [Re: chartrue2]
yonyon Offline

Registered: 03/06/12
Posts: 3492
Loc: NJ, USA
Is this one of those Toyota O2 sensors with the two little nuts?

Usually by the time those nuts need to be removed they're a lot smaller and rounder than they used to be. Find a socket that's too small to fit and try to hammer it on. If you get the socket on, take it back off and try to hammer on a smaller socket. Use a socket that won't go on so you can hammer at it until the rust starts to break up a little. Once you've done that you should be able to use a fluted bolt removal socket (socket that fits round-head bolts) to take it right off.

If the nuts are just too small to do that use a tiny straight screwdriver to peel the nuts off the studs.