[urq] Damn intake manifold

[Thatcher Hubbard]

Well, you're probably right about the removal, but they were orignally
installed with a standard flat-ended allen key and a torque wrench, I
put the IM back on the head before I re-installed the head in the car.

I only tried the ball-ended ones on the two I could not get my
standard one into.

I'm going to try the Torx idea tomorrow, hopefully that will give me
some traction.

I do feel somewhat okay blaming the fasteners, my ball-ended wrenches
are T-handled, which means the torque supplied to spin the wrench out
of the bolt head was nothing more than me twisting on the handle, not
really any mechanical advantage there.  I'm a pretty big guy, but not
so big that I should be doing that.  Also, like I mentioned, as soon
as I felt them slip I stopped, so it's not like they should be totally
hogged out.


On 4/29/06, urq <urq at pacbell.net> wrote:
> ... not clear to me it is appropriate to blame the fasteners ... You
> indicated that you were using a ball-tipped bit to break the fasteners
> loose, and I suspect you used the same when you torqued them in originally
> ... IMO that's the root of your problem.  Ball-tipped wrenches by definition
> do not give very much area over which the torque can be distributed ... I
> use them all the time for installing and removing loosened fasteners, but
> when comes time to torque them down I'll switch to a standard wrench.
>
> Steve B
> San Jose, CA (USA)
>
> >
> > The ironic part about this is that these bolts are brand new.  I
> > pulled the head off the car last year, and had it reworked by a
> > machine shop.  At the same time, I replaced my very badly cracked and
> > very loud EM with one that is not yet cracked.  I did, of course,
> > renew all of my fasteners at the same time, new studs and nuts for the
> > EM, new bolts and washers for the IM.
> >
> > I'm wondering if it would be possible to get a 6mm bolt of the same
> > length that has a deeper cup in the bolt head and can also stand up to
> > the heat and stress of that location.  The OEM ones don't seem to be
> > THAT well built, aside from their cost.
>
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