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Thread: Another good old Blue / White smoke thread.

  1. #1
    Join Date
    Jul 2012
    Location
    Whittier, SoCal
    Posts
    4

    Default Another good old Blue / White smoke thread.

    I have recently acquired a 1988 K3500 from a "local". Truck has records of a top-end rebuild that I haven't verified yet, but the transmission rebuild checked out, as did the re-gear so I am optomistic.

    After changing the oil the truck seems to smoke more than before. I am using Rotella T4 15w40 and have been using a 50/50 mix (8ozs.) per fill up (20 gals.) of Power Service Diesel Kleen w/ cetane boost (grey bottle) and Supertech 2-cycle TC-W3.

    The truck has been using 1 qt of oil every 600-800 miles depending on if the truck is loaded or not. I tried some Lucas oil conditioner (I thought valve guides) and it seems to have helped a lot.

    After reading numerous threads I checked the pump timing (position) and came up with the pics below, I also checked for blowby and it seemed non existant. Injectors are an unknown, could be original with 142k on them. It was a military truck at the start of its life.





    Blow by check:

    https://www.youtube.com/watch?v=WXBY6cVIi68

    Will upload start up smoke vid when I get home.




    I was wondering if the pump needs advancing, will that cause it to burn oil?

    Thanks in advance for any help you can offer.

  2. #2
    Join Date
    Dec 2003
    Location
    Yukon Canada
    Posts
    1,612

    Default

    Could be the Rotella.
    I have an engine that doesn't like it,or should say does like it and i had to add oil contentiously till i switched oil brands.Then the use pretty much stopped
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

  3. #3
    Join Date
    Jul 2012
    Location
    Whittier, SoCal
    Posts
    4

    Default

    Quote Originally Posted by Yukon6.2 View Post
    Could be the Rotella.
    I have an engine that doesn't like it,or should say does like it and i had to add oil contentiously till i switched oil brands.Then the use pretty much stopped
    Hmmm, will try Delo 400 when I change it next weekend, see if that helps.

    Thanks for the input.

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