[urq] Engine mounts captive bolts : how to remove ?

[martin at quattro.ca]

Louis-Alain,

It's probably too late now.. but, did you have the engine supported when
you started on the two studs/nuts??
They are bite type studs, and they require a bit of tension to keep them
in there.. so, if you still have the engine supported, let it put some
force on the studs so they bite back into their spot.

If not.  either cut the nut/stud from bottom, or weld the stud to frame.

Hope this helps.
Martin


> I am replacing both engine mounts on Eric's car. This time, after doing
> the one on my car, I was prepared: move the oil cooler, unbolt the 17mm
> nuts, use some oil on the rusty threads. The destroyed passenger side
> mount felt to the ground in 30 minutes.
>
> Then, the fun part: with the judicious use of an angle grinder, cut the
> remainder of the center stud so it can be removed from the engine
> bracket (from under the car) without trying to unbolt the top nut. This
> is important, unless you want to remove the airbox, the CIS tubing and
> the exhaust manifold...
>
> Overall, 60 minutes and the new hydraulic mount was installed. The old
> one was the 1985 solid rubber mount, and it was in a sad state...
>
> And while being there, why not install a new driver side mount ? It is
> not destroyed, but it is 20 years old... So, this time, I figured it
> will be an easy job because I have access from above for the top bolt,
> and the top stud will not spin in the mount since the rubber is still
> solidly attached to it. Easy job, I thought.
>
> Then...
>
> From under the car, I began unbolting the two last 17mm nuts from the
> captive bolts when the first one began to spin in its hole in the
> chassis ! Go to the second one, same thing... Gotta hate rusted studs
> with self-locking nuts...
>
> Now, after fiddling with different solutions for 30 minutes, I called it
> a day and left the car on the ramps until someone here can help me with
> a creative solution... All I can see is to remove the radiator, the fan,
> the tank and the hydro/bomb assembly and cut the studs from above. Maybe
> I can also drill them from above ? There is no access from under (unless
> I remove the subframe and then, the lower radiator bracket in the way.)
>
> So, how can I stop these from spinning in their hole ?
>
> Louis-Alain
>
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