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Recent content by bdaalex

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    Crusader 6.0 overheating

    My mechanic says both were back flushed but prob worth double checking. Restricted inflow could cause cavitation and bubbles.
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    Crusader 6.0 overheating

    its the same. I still think there is something wrong with the raw water flow, it would just explain things so well.
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    Crusader 6.0 overheating

    Well, no luck. I removed the suction line from the pump and connected a hose, closed the seacock and pressurized. There was a small drip from the oil cooler which tightening the hose clamp fixed. No change to bubbles. I inspected and lunricated the raw water pump. No change. I swapped the water...
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    Crusader 6.0 overheating

    Damn. Thanks makes sense. Ok. Will figure another way.
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    Crusader 6.0 overheating

    Ok. I think my plan is to move the clear hose to the intake of the pump. Then I will know if it’s the pump. Then I will move to strainer outlet. Narrow down my search. Unfortunately the oil cooler is on a nearly impossible part to reach so hopefully it’s not there. You have been super helpful...
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    Crusader 6.0 overheating

    Forgive my ignorance here but how could worn or grooved do this? Loose hose I get but a worn or grooved pump should not let air in? Unless it’s cavitation? That seems intense for a water pump.
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    Crusader 6.0 overheating

    no bubbles at idle and then so many bubbles when I increase throttle. Looks carbonated. I’m going to remove the raw water line from the seacock and put a garden hose in it. Pressurized water will hopefully spray out from somewhere before the raw water pump. Thoughts?
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    Crusader 6.0 overheating

    i think thats less likely then. it gets up to RPM fine, it just overheats once its there. but at this point anything is possible so i will check. in researching further i guess the hoses can delaminate and collapse internally too. i will check that.
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    Crusader 6.0 overheating

    funny, i thought it went up if their was an air pocket because the air bubble would expand when it heated. I actaully dont know if the boat has mufflers installed. if it does they are buried deep in the corner of the engine room. i will check! wouldnt a collapsed muffler cause other issues like...
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    Crusader 6.0 overheating

    I can check the level of coolant. i assume you are thinking air lock but we have re bled it so many times i dont know how that could still be possible. we replaced the exhaust elbows so they are brand new and definitely not restricted.
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    Crusader 6.0 overheating

    my other idea is to get a smaller pulley for my raw water pump to increase flow a bit but i have no idea where to find one that would fit.
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    Crusader 6.0 overheating

    no bubbles there. that was corrected with new head gaskets.
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    Crusader 6.0 overheating

    I will try that, thanks. i figure its either air getting in or restricted flow on the raw water but wasnt sure how to check. makes sense!
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    crusader 6.0 head gasket

    I did this exact same thing (but in reverse) and had an overheating problem. I replaced with the correct gasket and there was no change. There is a VERY small difference in overall thickness and cylinder size. My mechanic contacted some people more familiar with the many generations of the 6.0...
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    Crusader 6.0 overheating

    Hi.... at a total loss on my engines and my mechanic has given up. I have 2015 Crusader 6.0 engines in my Tiara 3100 open, not the catalytic ones, traditional exhuast. About 18 months ago, the port engine overheated and blew the head gasket. Since then, no matter what we do, it runs hot and...
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