my #14 head bolt is stripped as i was doing my headgasket...
im paniking (sp?)
someone had to have done this b4..any ideas????
im paniking (sp?)
someone had to have done this b4..any ideas????
stripped head bolt
- Thread starter walka
- Start date
Ah, that's easier.
Don't worry about helicoils, thats for when you've stripped the threads out of the block itself.
Are you trying to pull the head or put it back on?
Don't worry about helicoils, thats for when you've stripped the threads out of the block itself.
Are you trying to pull the head or put it back on?
IJ/Allan suggestions:
Grab an 11mm Allen inhex taper the edge then hammer it into the hole......
And don't blame us if it doesn't work
!
Alt: Drill the End until it falls off pull the head then remove.
Grab an 11mm Allen inhex taper the edge then hammer it into the hole......
And don't blame us if it doesn't work
! Alt: Drill the End until it falls off pull the head then remove.
Last edited:
theres a set of sockets that have a spiral to them on the inside that grab stripped bolts, but I dont know if they have those for allen bolts.
oh boy
i had this shit happen to me with the stupid OEM bolts (curse the worthless Allen heads).
Fortunatly what I did was actaully drill the OEM head bolt out. The bad part is that you must use high speed steel drill bit. I used the 10mm HSS drill bit and after ALOT of curising and time. The bolt broke free and i was able to take head off and then the bolt itself.
i had this shit happen to me with the stupid OEM bolts (curse the worthless Allen heads).
Fortunatly what I did was actaully drill the OEM head bolt out. The bad part is that you must use high speed steel drill bit. I used the 10mm HSS drill bit and after ALOT of curising and time. The bolt broke free and i was able to take head off and then the bolt itself.
there is a reason for having a "cup" head on the headbolts.I thought that it was a cruel joke from the toyota engineer/s that designed the head (i know its a yamaha head design)so when you have to pull the head you are stuck with a damn allen head.After asking a few fitters at work and browsing at fastening catalogues they are for higher tension/torque than the traditional bolt head
I've removed a lot of screwed up fasteners over the last #%$!@#$ years. My first step here would be to use a 7/16" (same as 11mm) allen socket. I would grind/taper the tip as 'IJ' said, and smack it down into the fastener a bit, then try using a 1/2" breaker bar, real slow.
The worst thing that could happen is the head of the allen bolt cracks. Then drill it if that happens.
Later you can repair the 7/16" allen socket with a grinder.
Also...get a bench grinder, it will last forever, and come in VERY handy all your life. Put a wire wheel on one end. They are like $30-50.
The worst thing that could happen is the head of the allen bolt cracks. Then drill it if that happens.
Later you can repair the 7/16" allen socket with a grinder.
Also...get a bench grinder, it will last forever, and come in VERY handy all your life. Put a wire wheel on one end. They are like $30-50.