Hi all, I finally got around to checking the compression on my 1984 300SD.
400 in all cylinders with 100 or 125 on the first crank for all of 'em. I guess that's pretty good. The engine has 215K on it.When I pulled the injectors out a couple of them had a lot of black soot around the nozzle. I gently ran my finger across the tip as I was told that if it snags your finger it's time for a new nozzle. They all seemed fine for that test.
I've been running biodiesel in it for a couple of months now and will be switching over to waste veggie oil soon.
Should I leave well enough alone or should I change out the nozzles at some time as preventative maintenance?
Thank to all, Jeff