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  1. #1

    250/260 heads cracking

    if you have had one crack please state which cylinder(s) had the crack. I think I know what is causing this but I need more data.


  2. #2
    www.eastcoastpwc.net Scott's Avatar
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    Re: 250/260 heads cracking

    Quote Originally Posted by Subtlesoldier
    if you have had one crack please state which cylinder(s) had the crack. I think I know what is causing this but I need more data.
    Cyls 2 & 3 between the intake and exhaust valves.

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  3. #3
    Mine too but it is between 2 & 3 linking exhuast valves. Seen 5 so far.

    This is one of them......... These cracks are the ones that allow water into the oil. Hard to see and easy to verlook. This pic is of a bad one but Ive seen them leak with less visibilty.

    Click image for larger version. 

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  4. #4
    Mine cracked and filled engine with water. Dont know where exactly the crack was though as it was done under warranty.

  5. #5
    nicjak's Avatar
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    Yep thats a pic of my first head maybe i need to look harder in that area on the one i now suspect has a crack


    Quote Originally Posted by Skips313 View Post
    Mine too but it is between 2 & 3 linking exhuast valves. Seen 5 so far.

    This is one of them......... These cracks are the ones that allow water into the oil. Hard to see and easy to verlook. This pic is of a bad one but Ive seen them leak with less visibilty.

    Click image for larger version. 

Name:	Crack POS.JPG 
Views:	402 
Size:	27.2 KB 
ID:	178949

  6. #6
    www.eastcoastpwc.net Scott's Avatar
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    Re: 250/260 heads cracking

    My head wasn't showing any performance loss. I stumbled across it when changing over to ferra valves.


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  7. #7
    Somebody please post a pic of the 15f from the exhaust side.

  8. #8
    Only cause you asked J.

    Wait here is the 250, gotta get the 15F out of the attic.

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  9. #9
    First I have heard / seen of this! Causes?

  10. #10
    GODOSIDIS's Avatar
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    Quote Originally Posted by Skips313 View Post
    Mine too but it is between 2 & 3 linking exhuast valves. Seen 5 so far.

    This is one of them......... These cracks are the ones that allow water into the oil. Hard to see and easy to verlook. This pic is of a bad one but Ive seen them leak with less visibilty.

    Click image for larger version. 

Name:	Crack POS.JPG 
Views:	402 
Size:	27.2 KB 
ID:	178949
    +1

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