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Another cracked head!

Discussion in 'Ocean Yacht' started by praetorian47, Nov 1, 2019.

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  1. praetorian47

    praetorian47 Senior Member

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    I was wrong! I do have the external strainer just like yours in the picture. How do you clean it out?
  2. alvareza

    alvareza Member

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    When the yard was prepping for bottom painting they removed the screen and blasted it in their shop, not sure if they used sand or something else for the blasting media. I think The screen slides out after a couple of screws are removed.
  3. C team

    C team Senior Member

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    Yep, Ocean, Post and Egg Harbor all used the same external strainers.
  4. C team

    C team Senior Member

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    I my Egg, there were screws going around the screen where you can remove and clean the "cheese grater".
  5. praetorian47

    praetorian47 Senior Member

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  6. C team

    C team Senior Member

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    Yep, from the picture, it does look clean. Once the screen is out, you can look up into the seacock and see if it is fully open as well as check for any blockage.
  7. praetorian47

    praetorian47 Senior Member

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    When flushing the engine, am I flushing the coolant or the fresh water side, or both? Any advice on that? I'd like to start that next week if possible (I may still have water in the building then which would save me hauling buckets up.)
  8. Beau

    Beau Senior Member

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    The "junk" we've been talking about is in the fresh water, correct? There are two systems at work here. One is a closed loop system which holds the coolant and should not become contaminated. The other sides sucks up salt water and spits it out the exhaust after going thru the heat exchanger. That water acts like the air thru a 'car radiator" to control the heat of the coolant. It will be as dirty/clean as the surrounding water.
    Last edited: Nov 6, 2019
  9. praetorian47

    praetorian47 Senior Member

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    I have "junk" in the coolant side. The raw water is fresh, I'm in Georgian Bay in Ontario :)
  10. Beau

    Beau Senior Member

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    Ah! Cold up there!
  11. praetorian47

    praetorian47 Senior Member

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    It's getting cold! The boat is in a heated building.
  12. praetorian47

    praetorian47 Senior Member

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    The flush that was done by the PO was on the coolant side.
  13. Capt Ralph

    Capt Ralph Senior Member

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    Oh Heck; Flush everything. Only doing good.
    I try to take a small pump and circulate the cleaner thru the equipment for a hour or so.
    Like cleaning A/C systems.
    Takes some planning with extra hoses and adapters but can be done.
    You will be amazed what you find in the pump/return-bucket.

    I'd go easy on the coolant side with the chemicals in a 92. Last thing you want to do is goof up a cylinder O ring. Check with a DDC shop for a proper&safe coolant side cleaner. When in doubt, Rinse all the sections with fresh water.
  14. praetorian47

    praetorian47 Senior Member

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    That's darn good advice!!! I'm pretty sure the the PO used what our DD expert got him, so it would have been safe, but he didn't flush really, just ran the boat with the stuff in and drained it. I think the flushing is what's desperately needed. Any advice on where to hookup the connections to, so I get the best result?

    My more knowledgable buddies probably know this already but the more information I have, the less likely I'm going to be posting another cracked head!
  15. Capt Ralph

    Capt Ralph Senior Member

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    Flushing the closed side (coolant side) depends on pulling the thermostats or not. It just takes sitting down with the engine, tie in with the Vulcan Mind Meld and figure out the cooling path.
    Your flushing cold indoors, with a water hose, spilling into the bulges and pumping over. A bucket at a time in not going to really rinse anything.
  16. praetorian47

    praetorian47 Senior Member

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    So the flushing should wait until spring then?
  17. Capt Ralph

    Capt Ralph Senior Member

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    I thought you could get a hose in? Or, Nobody likes bilge water in the shed.
  18. praetorian47

    praetorian47 Senior Member

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    nobody likes bilge water in the shed
  19. Capt Ralph

    Capt Ralph Senior Member

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    Never been is a shed environment. Yards are always wet.
  20. dewald

    dewald New Member

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