Did you try soaking them with PB Blaster? 
trick to getting y pipe off of stock manifold?
trick to getting y pipe off of stock manifold? damn bolts wont budge on either side, where the y pipe bolts to the manifold. Any tricks to getting them off? Starting my ARH LT install, so far just got the catback disconnected, the crossmember, the AIR/EGR. Thanks.
If you're using a decent 6 point socket that won't slip or strip the nut, just snap the manifold studs off.
You can use a breaker bar, long 3/8" ratchet, a 1/2" ratchet, or an air gun if possible...
No sense in worrying about the studs since if the nuts won't come off, they're probably no longer any good anyway.
You can use a breaker bar, long 3/8" ratchet, a 1/2" ratchet, or an air gun if possible...
No sense in worrying about the studs since if the nuts won't come off, they're probably no longer any good anyway.
yeah i havent hit them with anything yet (wd40 etc) because i ran out and the store was closed. I had a 6" extension on my ratchet and pulled hard as hell but it wouldnt bust off. I busted off the ones on the driver side cat though these just wont budge. Also whats the best way to remove the O2's? An adjustable wrench?
7/8" box or combination wrench.
The wrench will fit over the harness plug and once it's on the sensor squarely, if you smack it (the wrench) sharply once or twice with either your hand (ouch), or a hammer, it will usually "shock" the threads loose and allow sensor to be removed.
You can also try that with your extension on the exhaust studs, but it's usually 10x easier to just snap them with a decent sized ratchet, if you don't have air tools. Just use a hammer to try and shock the nut/stud.
Good Luck.
The wrench will fit over the harness plug and once it's on the sensor squarely, if you smack it (the wrench) sharply once or twice with either your hand (ouch), or a hammer, it will usually "shock" the threads loose and allow sensor to be removed.
You can also try that with your extension on the exhaust studs, but it's usually 10x easier to just snap them with a decent sized ratchet, if you don't have air tools. Just use a hammer to try and shock the nut/stud.
Good Luck.
Trending Topics
yeah i only have a 3" extension for my 1/2" ratchet, so I cant get it up in there to wail on it. Tomorrow when I go pick up some penetrator Im going to get a big 1/2" extension. I was rolling too until I hit this snag.
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
just a little heat from a torch and they come off like new bolts... im not a big fan of f**king up my stock exhaust parts by breaking the bolts, never know what is going to happen in the future, or if i might need them to put back on the car..
those bolts are rather cheap from any hardware store
go to harbor freight (if you have on near you) and get a breaker bar, like $10. Usually when I can't get a bolt to budge with my 1/2" ratchet I get out the breaker bar and its like a hot knife through butter or a cold knife through hot butter.....you know what I mean, EASY!!!!!!
