I deleted the thermostatic valve thingy but lately fuel leakaga has started anew. Alas and alack. I took a look and it wasn't hard to find. Fuel is seeping from under a couple of the flat metal things under the knurled nuts:
I have a viton set of O-rings on the way from Squiggle Dog. Not sure that some of those will be inserted here, I found a couple of older threads here, one mentions plastic bushings.
Anyone done this? I gather one needs a specialty wrench for the gnurled nuts, the multi toothed things.
Here's a thread from '06, he links to another thread in post #5.
http://www.peachparts.com/shopforum/diesel-discussion/159344-leaking-injector-pump-fuel-line-injector-om603.html