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What to look for? .engine survey 1550 CR MAN

Discussion in 'General Yachting Discussion' started by Punisherzx12r, Feb 20, 2021.

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  1. Punisherzx12r, Feb 20, 2021
    #1
    Punisherzx12r

    Punisherzx12r Member

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    I put in an offer on a Cabo Express wirh 1550 MANs ...4300 hours. Other than general inspection items that come on your run of the mill survey....what specifically or extra should I have the mechanic look at that would point to serious problems in the future? On my list is scope cylinders....scope anywhere else one can get to...bearings...cams..etc. oil samples.

    I know these things are probably past mid life...I don't mind planning for an overhaul just prefer not the first year...lol
  2. NYCAP123, Feb 20, 2021
    #2
    NYCAP123

    NYCAP123 Senior Member

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    Fuel tank. Also check the exhaust couplings. had one blow on a Mann and it wasn't pretty. Everything else I can think of you're surveyor should be on top of but be with your surveyor so you can get his on-the-spot impressions.
  3. Capt J, Feb 20, 2021
    #3
    Capt J

    Capt J Senior Member

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    Have the MAN dealer come out and do the engine survey. Nobody is going to let you pull injectors and scope cylinders, that's a HUGE job and the risk of stuck injectors and etc and having to pull heads is a no go. Nor is there a way to scope the bearings or anything else without dropping the oil pan and again, that isn't happening. The MAN mechanic should be able to cylinder cut outs on the injectors etc. The MAN dealer will know exactly what to look for and will tell you. Get oil and coolant samples.

    As for the fuel tanks, they're fiberglass in ALL Cabo's, so no need to worry about them aside from a quick visual inspection of the exterior. Have a good hull surveyor.
  4. Punisherzx12r, Feb 20, 2021
    #4
    Punisherzx12r

    Punisherzx12r Member

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    i didn't realize pulling the injectors was such a big job....i don't know much about the MAN but i assumed there was a oil fill tube or a port somewhere that would let you get a scope inside the crankcase.

    What else would concern you on a pair of these with 4300 hours?
  5. Capt J, Feb 20, 2021
    #5
    Capt J

    Capt J Senior Member

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    Which would show you what exactly? The bearings are sealed inside journals and no way to tell the condition of them even if you had the oil pan off.

    Nothing, make sure they run well at cold start, aren't smoking, aren't overheating, make WOT rpm's and run clean at cruise and WOT and all of the pressures look good......and have good oil samples and when was the last time the 1000 hour service was done.......
  6. Capt Ralph, Feb 20, 2021
    #6
    Capt Ralph

    Capt Ralph Senior Member

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    Heat exchangers.
  7. Punisherzx12r, Feb 21, 2021
    #7
    Punisherzx12r

    Punisherzx12r Member

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  8. Punisherzx12r, Feb 21, 2021
    #8
    Punisherzx12r

    Punisherzx12r Member

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    Capt J...your right. This boat doesn't have a "story" , i did scope the crankcase of a C18 a few months ago proving it was under water. It ran but not for long.

    The motors are due for the 4 year, 4000 hour service
  9. SeaEric, Feb 21, 2021
    #9
    SeaEric

    SeaEric YF Historian

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    Check on the cost for that and other required periodic services.