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The 2 tough ones are now rounded. These are the 2 bolts at the primary side of the manifold. This is not my first time taking the throttle body/manifold off.
So the two on the throttle body side I got loose no problem. But the two on the primary side are impossible this time around.
I used my special 1/4 angled ball Allen wrench, but its just mangling that soft bolt.
So, considering the tight space Im working in, what are my options?
How can I get these out?
Take a 1/4" allen wrench and cut off a short piece , use a die grinder with an abrasive zip wheel . Take the hex "bit" you've just created and place it in the allen bolt , get it in there as best you can . Use a 1/4" box wrench , longer is better , to turn the hex bit / bolt
Take a 1/4" allen wrench and cut off a short piece , use a die grinder with an abrasive zip wheel . Take the hex "bit" you've just created and place it in the allen bolt , get it in there as best you can . Use a 1/4" box wrench , longer is better , to turn the hex bit / bolt
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that's what I did back in 2008 when I was building my 121.
Everything was out of the way because I was installing the motor.
but, I don't think that's bobber's problem. I believe I read him to say the bolts are stripped (which don't seem right - could be the Allen wrench is wore out).
course I may be wrong.
edit to add -
maybe bobber can get in there With some vise grips if stuff gets moved out of the way.
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Take a 1/4" allen wrench and cut off a short piece , use a die grinder with an abrasive zip wheel . Take the hex "bit" you've just created and place it in the allen bolt , get it in there as best you can . Use a 1/4" box wrench , longer is better , to turn the hex bit / bolt
The 1/4 Allen socket cap head is already rounded. So, it doesnt seem that this will work. Although it is a good idea to get these bolts out (before they are rounded).
If there was any room, I wish I can hammer in a torx bit, but theres no way I can hammer it in based on angle.
The 1/4 Allen socket cap head is already rounded. So, it doesnt seem that this will work. Although it is a good idea to get these bolts out (before they are rounded).
If there was any room, I wish I can hammer in a torx bit, but theres no way I can hammer it in based on angle.
.
.
that's what I did back in 2008 when I was building my 121.
Everything was out of the way because I was installing the motor.
but, I don't think that's bobber's problem. I believe I read him to say the bolts are stripped (which don't seem right - could be the Allen wrench is wore out).
course I may be wrong.
edit to add -
maybe bobber can get in there With some vise grips if stuff gets moved out of the way.
.
.
.
Mud, you are correct. Its already rounded.
I think that angled ball end Allen tool may have been a bit worn, like you suggested.
ETS and fuel supply line already out of the way.
I wish i could tap something in there but tight spot and inverted angle of those bolts suck.
Ill try to get a pair of aggressive pliers on it or a vise grip (maybe after heating it a little).
Or, maybe I can jb weld a short Allen bit in there as suggested above and like your photo ?
will that do it ?
Last edited by SC07Bobber; Mar 8, 2020 at 06:02 PM.
those ball end hex drivers don't present a lot of surface area and so are prone to stripping. Best to use a straight bit to break it loose, then use the ball end to spin it out. (I know, that doesn't help...) anyhow, it's still possible that there is enough left in the socket to get a grip with a straight bit. Worth a try, anyhow. i haven't had much success with needle nose vice grips to get anything tight to turn. The jaws are too flexible.
If the heads are coming off , remove them as a pair and then you can "work" the throttle body out with a twist , yes ….. this works. Now you will have better access to the screws
Thanks to Mud and everyone else who provided advice.
It was only the the tip or the very initial entrance to the cap socket bolt that was rounded. So, I was finally able to break it loose with a fresh sharp Allen wrench after tapping it in with a small hammer.
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Rounded manifold bolts
