If your Neutral Safety Switch is making Contact and jumper wires on the Connector did not allow the Starter to crank you likely have a Ignition Switch problem.

Unfortunately I found out that what appears to be an Ignition Switch issue can be an issue with what turns the Ignition Switch.

See pics.

While I was testing the Neutral Safety Switch My Lock Tumbler seemed to jam up. Spraying WD40 into the Lock and fooling with it I was able to turn the Lock Tumbler into a position where I could removed the Tumbler.

I removed the Ignition Lock Housing with the Intention of Inspecting it. I found that the Vacuum Valve on it was leaking Oil.

I found that that all of the Ignition Switch Screws were loose and when I took it apart I found that the Shaft that turns the Ignition Switch was broken.

It might be that the loose Ignition Switch screws conspired to break the Shaft.

Attached Thumbnails

     

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84 300D, 82 Volvo 244Gl Diesel