What tools or methods are used for tightening the Crankshaft

[commuter boy]

You do need to be a bit careful where you jam your prybar down the bellhousing hole, but as someone else mentioned, it's what the VW tool does anyway.

Something to be aware of, is that's a stretch bolt.  The torque is setup to actually put enough force in there to physically change the bolt dimensions so that things don't move again.

This implies a couple of things, from my days as an aircraft mechanic:

The bolt goes in dry, a threadlocker/lubricant will change the torque on the bolt;

It's always a new bolt, never a used one, or a partially tightened bolt;

The bolt get's the final torquing sequence in one smooth movement.  Starting and stopping is a bad thing, as are impact wrenches which can't tighten bolts this way.

If the bolt's not stretched enough, the threadlocker may not be able to do it's intended work, or if tightened properly, the Loctite may be squeezed too thin to work properly.  You may want tto call them to see what they'd reccomend in this situation with such a high torque on fine threads.

I think the Loctite's good insurance, but it does change the torque on the bolt, and I wouldn't trust it to hold things together if the bolt's not stretched properly to begin with.

[steve]

The bently for my 84 quantum didn't indicate that it's a stretch bolt.  It just said 150 ftlbs (or actually 148 if I remember right?) and it said to oil the bolt.  

I don't think the effectiveness of threadlocker is dependant on bolt torque.  I believe it works on the back side of the threads anyway, not the contacting faces of the threads.  Those little gaps won't change much with torque.

[DA-BRT]

It's an old topic, but I think I got a good sollution to remove/mount the bolt.

I took an old clutch pressureplate and bolted it to the krank. Then I welded two profiles to the pressureplate to get it fixed to the engineblock. Now the krank is fixed to the engine.

I rotate the engineblok flat on the ground and than heat the old bolt (some kind of loctite is applied) to get rid of the working of the Loctite.

Now its reasonably easy to unscrew the bold.

I'll post a picture of my setup.