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Turbo rebuild

Discussion in 'Viking Yacht' started by Waytofast79, Nov 26, 2019.

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  1. Waytofast79

    Waytofast79 New Member

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    hey everyone just pulled the boat today and it’s time to get my turbos rebuilt on my 6/92s was wondering if any one had suggestions or any thoughts on this turbo blueprinting and if it is worth it please let me know
  2. Capt Ralph

    Capt Ralph Senior Member

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    Why is it time to rebuild your turbos?
  3. Waytofast79

    Waytofast79 New Member

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    They are sticking and is starting to have a decent amount of shaft play
  4. Capt Ralph

    Capt Ralph Senior Member

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    What performance do you think you have lost? What color is your exhaust?

    Please review Detroit turbo service specs.
    I can not cipher sticking but understand shaft play. Air Research, Garret and others have a good bit of for-rear play when spinning at finger pushing rpm.
    When running the oil offers good flotation on the shaft that is never realized (by finger feel) and center float is realized.
    I'm not trying to be a smart asp, but good spinning turbos should not be screwed with until a real symptom is or about to come on.
    Let me say it this way, Zero problems with running take off turbos to fix my customer real issues. Lots of problems with rebuilt turbos. I luv used parts.
    Can you take a hint??
    Last edited: Nov 26, 2019
  5. Capt Ralph

    Capt Ralph Senior Member

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    In case you are not familiar with my maintenance schedules here on Y F, It's simple;
    Never kick a sleeping dawg...
  6. Waytofast79

    Waytofast79 New Member

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    The turbo stuck bad over summer to where a 7/16 socket was needed to break free and for last two seasons when spinning the turbo by hand it’s not smooth and also the shaft play is not only in and out slightly it’s up and down and can see where it made slight contact with the housing
  7. Capt Ralph

    Capt Ralph Senior Member

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    Then you may have one bad turbo.
    Don't purchase a whole unit, DDC offers just the middle cartridge (your failed part).
    Serial number in hand, go to a real DDC shop and get just the mid cartridge.
  8. Waytofast79

    Waytofast79 New Member

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    yea I already tried to do that but is on back ordered at Johnson and towers so I’ll get them rebuilt
  9. Capt Ralph

    Capt Ralph Senior Member

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    Junk & Trash?? Try a real DDC shop yet?
    IMO, only mess with what has failed.
  10. Capt J

    Capt J Senior Member

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    If it's contacting the housing, the bearing is shot and you should address this ASAP before it sends pieces of the turbine through your engine. Not sure on the blueprinting of turbo's but couldn't hurt.
  11. MBevins

    MBevins Senior Member

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    If you're going to send them in.
    Superior Turbo & injection in Detroit are real DDC rebuilders.
    Without the "Marine" mark-up
  12. boatpoor

    boatpoor Member

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    I pulled one and disassembled it back in October for basically the same reason. The bearings were still good and the compressor was good but the turbine housing was corroded internally to the point that the turbine couldn't spin. There were no housings available anywhere that I could find at the time but Detroit offers a complete reman for around $3,200. I deal with Williams in Birmingham,Alabama. They still had 4 on the shelf, but as soon as I get a break at my real job I'm going to replace my other one, so they'll have one less. Looks like the salt air through the exhaust took its toll on the cast iron.
  13. boatpoor

    boatpoor Member

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    By the way, if it's the TW 8301 turbo, it will have bronze bushings and you can replace them for about $150.00 if that's the problem and the shaft and housing aren't damaged.
  14. CaptPKilbride

    CaptPKilbride Senior Member

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    Live in Maine, work in the Gulf of Mexico
  15. C team

    C team Senior Member

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    I like that Capt Ralph! I'll have to remember that name!
  16. Fishtigua

    Fishtigua Senior Member

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    Had 2 turbos 'rebuilt' by a well know company. The single most shyte shower of a job I've ever seen. Dreadful.

    Just buy new aftermarket ones, like for like and cheaper.
  17. cleanslate

    cleanslate Senior Member

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    I got mine from J & T two years ago An Un-Reliabuilt product ...but it's been good so far. Mine are small for 471. Air research units.
    Not sure if YF peeps know this but J & T and Western Branch are under the same ownership. Not sure who bought who. OR if it's some sort of alliance.
  18. Capt Ralph

    Capt Ralph Senior Member

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    WB also took over the Convington line of marinized Detroits.
  19. Capt J

    Capt J Senior Member

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    Covington was Western Branch I believe. Or vice versa. Covington became Western Branch.
  20. Waytofast79

    Waytofast79 New Member

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    Ok awesome thanks everyone going to pull both turbos this weekend boats on land for the season so can take my time