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Overheating Issue

Discussion in 'Ocean Yacht' started by Boomer, Jun 2, 2018.

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  1. Boomer, Jun 13, 2018
    #81
    Boomer

    Boomer Senior Member

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    Haven't forgotten the pics...been having t storms the last few nights...havent been to the boat
  2. Boomer, Jun 13, 2018
    #82
    Boomer

    Boomer Senior Member

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    Now it makes sense...was trying to figure roven woven around the pipe and slide off...bahahahaha
  3. Boomer, Jun 22, 2018
    #83
    Boomer

    Boomer Senior Member

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    Well this is interesting....just got bottom redone and props repitched to 24x20p...motors ran great, no black smoke, and no overheating now...go figure....now on to the next problem...did I blow a turbo
  4. Capt Ralph, Jun 23, 2018
    #84
    Capt Ralph

    Capt Ralph Senior Member

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    Black smoke?
  5. Boomer, Jun 23, 2018
    #85
    Boomer

    Boomer Senior Member

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    Grey/blue..and missing a lot of oil....nothing in the oil pans so it went out the exhaust
  6. Capt J, Jun 23, 2018
    #86
    Capt J

    Capt J Senior Member

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    You need to get a real D.D. mechanic out. Sounds to me like you have a cracked liner/dead cylinder.
  7. Boomer, Jun 23, 2018
    #87
    Boomer

    Boomer Senior Member

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    Roger that..was going to look at the turbo bearing first on the exhaust side to see if seal went...should be easy to tell if oil is coming from the manifold or it starts at the turbo
  8. MBevins, Jun 23, 2018
    #88
    MBevins

    MBevins Senior Member

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    As a fellow 6-71 owner you should heed J's advice. If you're experiencing what you say , you could be looking at a serious bill if you mess this up.
  9. Boomer, Jun 23, 2018
    #89
    Boomer

    Boomer Senior Member

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    Agreed....praying the turbo bearing seal went otherwise I am out of business for a few months while I get a rebuild
  10. praetorian47, Jun 24, 2018
    #90
    praetorian47

    praetorian47 Senior Member

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    This just happened to me! The system was flushed 2 years ago and I just had an overheat last weekend, cracked the head. Turns out there was a ton of crap in the overflow bottle and blocked the return.
    Luckily I have friend that runs a generator company and got me a new head cheap. It should be here tomorrow so I should be up and running again this week!

    I'll be flushing both engines with water
  11. Boomer, Jun 24, 2018
    #91
    Boomer

    Boomer Senior Member

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    Motors were flushed several months ago...just pulled the valve cover...broken valve....this sucks!
  12. Boomer, Jun 25, 2018
    #92
    Boomer

    Boomer Senior Member

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    Where would the intercooler be?
  13. Boomer, Jun 25, 2018
    #93
    Boomer

    Boomer Senior Member

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    Serial # 6a 436025. Model #1063-5303
  14. Boomer, Jun 25, 2018
    #94
    Boomer

    Boomer Senior Member

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    Pics sent to your email address...last bill for injector install states M15 injectors
  15. Capt Ralph, Jun 25, 2018
    #95
    Capt Ralph

    Capt Ralph Senior Member

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    Got the pictures.
    I do not see any blower by-pass hardware.
    That is NOT a TIB, Just a TI.
    Without the blower bypass, this engine can not make the HP as claimed when sold to you (485?).
    Maybe, Maybe 450HP but needed the M95 injectors for that in 1984.
    This is a 1983 block per serial number.
    M15s should be just under 400 flywheel HP.

    Non of this makes a matter that you dropped a valve.

    Time for a head pulling party. That head is heavy you will need two young and stupid backs to pick it off the block.
    There just a RCH room on the head ends and must come up level with the block deck of will feel like you missed a head bolt.
    So, do what I did one time in my old hood, ask a couple of street kids if their whimps and you have a test for them.

    Oh, my back crushed and messed up doing this by myself when I was young and stupid.
  16. Capt Ralph, Jun 25, 2018
    #96
    Capt Ralph

    Capt Ralph Senior Member

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    BTW
    A SWVS governor and a 71 engine will pull it's heart out out to make the requested RPM.
    You may have been running on 5 and overheating.
  17. Boomer, Jun 25, 2018
    #97
    Boomer

    Boomer Senior Member

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    Awesome on the ti's...am actually happy to hear it...motors won't he so stressed out...maybe I got the 410 hp motors
  18. Boomer, Jun 25, 2018
    #98
    Boomer

    Boomer Senior Member

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    Going to do a top end rebuild to get her up and going again
  19. Boomer, Jun 25, 2018
    #99
    Boomer

    Boomer Senior Member

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    This is probably the longest running thread...lol
  20. MBevins, Jun 25, 2018
    #100
    MBevins

    MBevins Senior Member

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    I'm betting you have 450 hp engines.
    And I'm betting you dropped the valve and have a dead cylinder so you're running on 5 cylinders. Not to be a negative guy but odds of not damaging the cylinder are probably close to zero. Unless you can rebuild yourself and based on this thread it's highly doubtful. You might as well just start shopping for the mechanic who's going to rebuild her.

    And pay to have the other head pulled and rebuilt at the same time. You"ll thank me later.
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