Hello,

I have an old 1960's cooktop that i am replacing with a new cooktop I
purchased. The old 3way wire went into a junction box under the
cupboard attaching the main house wire to the standalone oven and the
old cooktop. So I have 3 wire lags that connects all 3 wires (one red,
one black, one bare).

First off how the heck to I get the lags apart, it looks like a normal
nut and screw senerio but its not budging, looks like some gunk or glue
was put on the lag/wires after it was installed.

1.)Is this true of old 220 wiring?
2.)Do I need to cut all the wires and get new lag connectors?

Next question is after I get the wires free my new stove came with 2
hot wires and a green ground wire, in the instructions it says only use
with a grounded circuit. I know this house does not have a seperate
ground wire just 2 hots and a unshielded bare wire.

1.) Do I just connect the green wire to the unshielded bare wire in the
junction box?
2.) The old stove had some of the bare wire connected to the house bare
wire and a couple strands of the bare wire connected to a screw on the
old stove. Do I need to do this on the new stove (there is not screw on
the new one to do this) or just hookup the green ground wire to the
bare house wire?

Last question is how do I know if I have aluminum house wire on this
220v circuit, it tells me to use special connectors if I am connecting
copper to alum. wire.

Thanks
Jason