Starter nuts stuck to bolts - fused somehow? pics inside MKIV Golf

[defixio]

Problem was initially a rough/grinding start. I found a great DIY thread here:
http://forums.vwvortex.com/showthrea...t=window+motor

Everything went smoothly until I got to the 18mm top & bottom nuts for the starter bolts. I can't even budge them. Noticed that the threads of the bolt just above the nut look as if they are fused somehow to the nut. A friend suggests that arcing may have occurred.

-I sprayed it with PB Blaster and let it soak overnight, still not moving.
-Don't expect to use a torch on it as the top nut is also stuck and is surrounded by wires & hoses.
-Impact wrench maybe if I can get ti attached to the top bolt (tight squeeze there).
-I have a breaker bar but can't get the car raised enough to get a good swing at it.

Any ideas why this nut is on there so solid? Loctite ain't that strong.. but what else could that smooth area be on the threads?

Two pics are from underneath looking up towards the bottom starter bolt. The other two show a wire that has come undone from whatever attachment point that is on the top of the starter.. I have no idea what that piece is that the red wire has detached from.

Click the image names here: http://www.studiocisco.com/vw/

I have some other guys looking at this on facebook and will post back here of what is learned.

Thanks all.

[Anony00GT]

Get a bigger ratchet on it. Get more stronger. Put more ass into it.

The broken wire is the signal wire for the starter. Fix that.

[harmankardon35]

If its like my mk3, its not actually a nut but a long bolt. The threaded part on the top held a smaller nut for some type of bracket (probably to hold the wires) Problem is, if you put a breaker bar on it, you could snap it..and that's not fun. Impact driver may be the way to go.

[Anony00GT]

If you look at his pics, he's got the 13mm nut off already (and the studs bent ). It's the 16mm long bolt he's having trouble with.

[defixio]

Thanks guys. If I had read the DIY linked above I would have known it's actually a long bolt. Derp.

Today I bought a pipe to get some more leverage on my biggest ratchet. Ended up breaking the 1/2" adapter. Have never ran into a bolt so stubborn.

I dug out the old wiring and ferrule from inside the signal wire connector. Hopefully that fix is as simple as rewiring and reattaching it.

Next step is to buy an impact wrench I guess.

[player2]

seached "corrado starter bolts" ended up here.

1. vw's are metric.
2. righty tighty means that you turn it clockwise to tighten. (unless you are trying to get at a bolt from underneath)
3. you would have spent less time and effort hacking or grinding the bolt off.
4. you could twist that bolt off with a proper 3/8 ratchet. no need for cheater bar.
5. solder and heat shrink any wire splices.
6.