Quote:
Originally Posted by nckmsn
Crack the injector on the low compression cylinder and see if the smoke goes away. This should give him an idea on which way to move with the diagnosis.
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Remove the Injector and have it tested or move that Injector to another Cylinder that you know is good.
Do what you said above ounce it is on the good Cylinder. If it does the same as you wrote above you have a bad Injector.
The Marvel Mystrey Oil soak worked for me and cured the Gray Smoke I had just about all of the time. (The Car had sat 1 year and when I did get it going I drove 6 months with a Thermostat that was opening too soon.)
But, it takes time. I soaked 1 week, rotated the Engine (with Glow Plugs removed) and soaked another 3 days.
Cranked the Engine to avoid a hydraulic lock and blow out any excess oil and installed the Glow Plugs and started.
Drove the Car to my Drive Way and changed the Oil.
Then took the Car for a hard drive on the Freeway.