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    Black Oil coming from under IQ nose cone

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    4 replies
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    • Member since
      November 2006
    • From: IL
    Black Oil coming from under IQ nose cone
    Posted by MorSno on Tuesday, January 5, 2010 10:38 AM
    I noticed black oil coming from under my sled up by the nose cone. I'm sure this is coming from the exhaust value solenoid during normal operation. Can this interfior with the solenoid operation causing it not to close all the way? Is there a way to test the solenoid operation? Should the tubing and solenoid be cleaned?
    • Member since
      January 2008
    Posted by J.L. on Wednesday, January 13, 2010 8:01 PM

    I have 6500 miles on my 07 D7 and have alway had oil driping from the exhaust valve. It has never seemed to effect the valves ever. I have cleaned my valves maybe twice each winter and the have always moved freely.  I do not feel there is any cause for concern.

     Jim Letts

    • Member since
      November 2006
    • From: IL
    Posted by MorSno on Thursday, January 14, 2010 8:27 AM
    J.L., that's for providing feedback and confirmation this is normal. On your D7, have you had any ring or other motor concerns?
    • Member since
      January 2008
    Posted by J.L. on Saturday, January 23, 2010 9:27 PM

    To be honest I replaces both pistons and rings in Dec. because I was concerned about the rings as when I purchased it new before any updates or reflash it ran extremly hot. Compression was good but I decided that a look in side as well as new pistons would be a good idea.  The original rings did show some wear, The pistons looked good with no scoring or anything.  Cylnders still had crosshatch showing.The wrist pins and needle bearing did have a blue color which I am told is from getting hot. Plenty of oil may have saved the bearings.

    I have put about 700 mile on sense the rebuild and every thing is good. I do not detect any increase in power or better economy.

     

    J.L.

    • Member since
      November 2006
    • From: IL
    Posted by MorSno on Monday, January 25, 2010 8:29 AM
    That was probably a wise decision to prevent unnecessary downtime. My Mag side ring broke at ~4200 and the PTO side at~5700. I had the Mag side piston and ring replaced when the PTO side was done. In talking to the dealer he is think ever 4000 miles might be a good point to replace rings and pistons.

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