850 engine air hoses - rear springs - door cylinder & ignition

[manovlov]

I'll try to use an inverted tapping drill bit.
I'm thinking of drilling a pre-hole and then drilling an invariant tapping drill. It should work. Thanks for your advice.

[crlande]

The anchor is hollow so the splines of the flat bolt head are only held in place by a few millimeters of the anchor. I stuck my drill right thru the spring and was able to drill a hole at an angle into the flat head bolt and put something into the hole to prevent the bolt rotating while I turned the nut. You will be surprised how little is material is holding that bolt in the anchor.

[manovlov]

Hy crlande,

That's a very good tip. Thanks. I will test this option quickly.

Manov