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  1. #1
    Legend in my own mind Sirhc7897's Avatar
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    Oil in plug hole / Head problem...dignosis help? (Pics added)

    So I may have encountered a small problem. Got out on the water yesterday and the ski is only running on 2 cylinders. Put it on the trailer and figure out it's the rear that isn't firing...

    Pull the coil off and there's oil all in the plug hole and around the base of the seal on the coil...Plug is totally saturated by oil...

    Before I pull the head or tackle anything else on it...I'm headed over to the shop to get my compression guage and test that out but what potentially am I looking at?

    Am I going to need to pull the head and if so what the procedure for this?
    -Drain oil or no?
    -Drain coolant or no?
    -Anything else, etc...

    Thanks guys...
    Last edited by Sirhc7897; 08-19-2007 at 08:36 PM.


  2. #2
    Hi Chris, there are seals on the spark plug tube, pull the head cover off and check out the seals on the tube. is spark plug loose?...PR...

  3. #3
    Legend in my own mind Sirhc7897's Avatar
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    Spark plugs were all plenty snug. I'm hoping it's something as simple as that...

    Thanks and that's where I'll start looking...

    Do I need to drain the oil and coolant before I pull it off or will it be fine?

  4. #4
    Quote Originally Posted by Sirhc7897 View Post
    Spark plugs were all plenty snug. I'm hoping it's something as simple as that...

    Thanks and that's where I'll start looking...

    Do I need to drain the oil and coolant before I pull it off or will it be fine?
    remove the plastic cover on the head cover and you`ll see some torx bolts that hold the head cover (valve cover) on. there is a one piece o-ring type seal around the head cover, lift off cover and look, you may have to remove the rockershaft assy to get the tubes out , I don`t remember how I did it...
    no coolant or oil drain to just remove the head cover...

    why don`t you, remove the oil from that plug hole, check head cover bolts for proper torque, install new plugs and ride it, when your back look in the tube again to see if oil is present. when I saw oil in there, that`s what I did, and so far I haven`t had an issue yet...PR...
    Last edited by Pale Rider; 09-29-2008 at 07:09 AM.

  5. #5
    EZ Dock of Long Island Shibby1485's Avatar
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    to pull the valve cover dont drain anything...

    to pull the head, drain the coolant only, not the oil

    compression check and leakdown before you have to yank the head and scrap a head gasket and head bolts and rocker shaft bolts... well, it sounds like u've never pulled the head yet so i'd have no problem using the same head bolts and rocker shaft bolts one more time.. but u'll need a head gasket

  6. #6

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    Quote Originally Posted by Sirhc7897 View Post
    So I may have encountered a small problem. Got out on the water yesterday and the ski is only running on 2 cylinders. Put it on the trailer and figure out it's the rear that isn't firing...

    Pull the coil off and there's oil all in the plug hole and around the base of the seal on the coil...Plug is totally saturated by oil...

    Before I pull the head or tackle anything else on it...I'm headed over to the shop to get my compression guage and test that out but what potentially am I looking at?

    Am I going to need to pull the head and if so what the procedure for this?
    -Drain oil or no?
    -Drain coolant or no?
    -Anything else, etc...

    Thanks guys...
    you"ve only got spark plug o ring leak don"t pull the head, just take the cam cover off, regards bill

  7. #7
    Legend in my own mind Sirhc7897's Avatar
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    All right now into the meat of the problem...

    So I started a compression test and discovered 105 on the rear and 70-75 on the mid (checked with 2 diff guages...). So I stopped the check right there and started pulling the head...

    Upon pulling the head and draining the coolant this is what I discovered...

    Not really sure what I'm looking at and the extent of the actual damage but I'm pretty sure the headgasket was shot...

    So for those of you who know...what am I looking at?
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  8. #8
    Legend in my own mind Sirhc7897's Avatar
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    So all of the valves look fine but there's some coolant puddled in the rear cylinder and the coolant I drained has oil in it for sure...

    More pics:
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  9. #9
    Legend in my own mind Sirhc7897's Avatar
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    More:
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  10. #10
    WOW, first you look for oil seal leaking and find this, even tho I don`t think the 2 are related, unless the head is cracked, but not likely if you didn`t overheat it.
    I can`t help you or answer you as to why/how, but looking at the pics it doesn`t seem like you had a blown gasket for long, maybe you just caught it...I don`t see alot of wash in any cylinder from coolant but the center cylinder does look oily/carboned up... Do you think a new head gasket will restore your compression? did you do a leak down first? How are the cylinders?
    Jerry, shibbs and the Pro`s here could best give you advice... Good luck bro!...PR...

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