Diesels ARE my speciality. However, the 6.5L has left a bitter taste in my mouth. I actually have a guy here that has souped up his '98 with injectors, an intercooler, aftermarket turbocharger, etc.
He just put a new long block in it since he blew the last one up (go figure

) and now the dang thing just won't run worth a crap. White smoke (unburned fuel) at anything above an idle. I can't advance the injection timing enough to even do the TDC learn. The marks on the pump and the front cover are 5/16" off (advanced) and it still needs to go more. I told him to pull the front cover and see if the timing marks on the cam and pump gear were lined up. He said they were. I was out of ideas.
Any thoughts?
Dang I love electronically injected diesels.