I followed the rebuild guide from How To Modify Your Nissan/Datsun Engine book, which told me to not bother putting the oil slinger back in when rebuilding.  I wasn't actually rebuilding (just replacing the crank damper after my last one delaminated), and then a couple nights ago, I threw my fan belt.

Are these instances related?  Is the elimination of that one shim just enough to screw up pulley alignment?

I forgot to put my oil slinger on my 280 when I rebuilt it 4 years ago.  No problems at all.

With the car running and looking at the belt from the alternators side does/did it look off center?  I had to add a washer to the top mounting bolt to line mine up straight.

We'll see how it all goes.  I replaced the belt, as the original was almost at the end of its adjustment range.  By eyeball, everything looks OK to me.

i dont think 1/64th or 1/32nd of an inch is gonna make a squat of difference as far as belts

The new belt seems to have answered the mail.

However, now it won't start when the car's warm, in the cold (<40°F).  If the car's cold, it'll start regardless of the temperature.  It'll start just fine from a roll, though.  

Think I'm going to pin my engine harness up, denude it, and see what I can safely strip out (+/hi/lo for RH headlight can pretty surely go away with my relay harness), what I need to replace, and what's buggered.

10 minutes ago, Jehannum said:

However, now it won't start when the car's warm, in the cold (<40°F).  If the car's cold, it'll start regardless of the temperature.  It'll start just fine from a roll, though.  

Think I'm going to pin my engine harness up, denude it, and see what I can safely strip out (+/hi/lo for RH headlight can pretty surely go away with my relay harness), what I need to replace, and what's buggered.

When are you going to work on the no-start problem?  The problem and your plans don't seem to go together.

1 minute ago, Zed Head said:

When are you going to work on the no-start problem?  The problem and your plans don't seem to go together.

I'm pretty sure that the + on the coil isn't receiving any voltage on key to "start" when cold.  I'm going to troubleshoot that.