HELP!!! have 2 rounded off rocker bolts 
is there any way to get them off? all the other ones came out fine. 
HELP!!! have 2 rounded off rocker bolts
Originally Posted by NviouSS
like one that doesn't look like a hexagon on the inside? if so, then yes.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
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 well if they are rounded off I would try to tap a metric 7.5mm on the end of the bolt. It's takes an 8mm so a 7.5 should be able to be tapped on. I have heard of this but I have never rounded one off yet.
Which ones are stuck? You might have to drill it and use an ez out...if it is the front cylinders. Maybe you can get a small pair of vice grips in there. If all else fails you could probably get a grinder/dremel and take the head of the bolts off and pull the rocker, then use a pair of vice grips.
Also, make sure the valves you are trying to loosen are in the fully closed position to take any load off of the rocker bolt. This will also help you loosen them.
Also, make sure the valves you are trying to loosen are in the fully closed position to take any load off of the rocker bolt. This will also help you loosen them.
Originally Posted by Grimes
try to get those bolt extractors from craftsman? the ones that look like sockets but have sharp grips inside them.
Originally Posted by mvvette97
well if they are rounded off I would try to tap a metric 7.5mm on the end of the bolt. It's takes an 8mm so a 7.5 should be able to be tapped on. I have heard of this but I have never rounded one off yet.
Originally Posted by chino_man279
Which ones are stuck? You might have to drill it and use an ez out...if it is the front cylinders. Maybe you can get a small pair of vice grips in there. If all else fails you could probably get a grinder/dremel and take the head of the bolts off and pull the rocker, then use a pair of vice grips.
Also, make sure the valves you are trying to loosen are in the fully closed position to take any load off of the rocker bolt. This will also help you loosen them.
Also, make sure the valves you are trying to loosen are in the fully closed position to take any load off of the rocker bolt. This will also help you loosen them.
the intake side of #2 and #6 i believe
Originally Posted by NviouSS
i may have to. i just read about it after searching how i could get it out
do they even make a 7.5?
do they even make a 7.5?
If you have a welder you can also weld a bolt or nut on top of the stripped head and put your wrench on that. The #2 is real easy to get to. The #6 would be hard to get an ez out to work because you have to drill them. Although the socket style bolt removers may work, I do not know if they will fit down in the rocker where the bolt head is recessed.
If he doesn't know what a 6pt. is chances are he used the 12pt. first and rounded the corners off before trying the 6pt. The underside of the bolt head face is locktited to the face of the bolt tower. It takes a lot more force to break the locktite than the torque value of the bolt. Drilling the bolt? That's a recipe for disaster in this case. Time for some heavy duty vice grips on the ones that are rounded off. Give it a nice hard quick snap and the locktite will break loose which is what you should done in the first place with a 6pt. socket on a 3/8 drive breaker bar. Then you can turn the bolts out with your finger. You should have ask this question BEFORE you rounded the bolt heads off. The Craftsman tool would probably work too, but having that around would only give him an excuse to take shortcuts again in the future. Better to do it right the first time and not have rat yourself out by asking a question such as this. A 6pt. 3/8 drive 8mm socket from SnapOn will cost you just under $10, but it's money well spent.
Last edited by eallanboggs; Jan 3, 2007 at 03:37 AM.
I rounded a rocker arm bolt before when my socket cracked. I used the Craftsman bolt extractor kit and it worked really well. While I was at Sears I picked up an 8mm impact socket and that solved the problem of cracking another socket on those bolts.
Originally Posted by mvvette97
well the one you need will have 6 points on the inside. There is a 6 point and a 12 point. The 6 point will fit the bolt better than the 12
Originally Posted by eallanboggs
If he doesn't know what a 6pt. is chances are he used the 12pt. first and rounded the corners off before trying the 6pt. The underside of the bolt head face is locktited to the face of the bolt tower. It takes a lot more force to break the locktite than the torque value of the bolt. Drilling the bolt? That's a recipe for disaster in this case. Time for some heavy duty vice grips on the ones that are rounded off. Give it a nice hard quick snap and the locktite will break loose which is what you should done in the first place with a 6pt. socket on a 3/8 drive breaker bar. Then you can turn the bolts out with your finger. You should have ask this question BEFORE you rounded the bolt heads off. The Craftsman tool would probably work too, but having that around would only give him an excuse to take shortcuts again in the future. Better to do it right the first time and not have rat yourself out by asking a question such as this. A 6pt. 3/8 drive 8mm socket from SnapOn will cost you just under $10, but it's money well spent.
it got rounded off when the 6 pt broke fyi.