Coolant steam coming out of spark plug holes on my XLT
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Coolant steam coming out of spark plug holes on my XLT

This is a discussion on Coolant steam coming out of spark plug holes on my XLT within the Polaris forums, part of the Brand Specific Snowmobile Discussion category; so i got my sled out of storage yesterday, topped off the coolant, took it for a short ride and when i got back there ...

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Thread: Coolant steam coming out of spark plug holes on my XLT

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    Coolant steam coming out of spark plug holes on my XLT

    so i got my sled out of storage yesterday, topped off the coolant, took it for a short ride and when i got back there was coolant steam coming out around the spark plug farthest from the water pump. i took the plug out and more steam came out. i don't know what could cause this, what do you guys think? on an 1998 polaris XLT btw.



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    Head gasket or cracked block

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    What's the compression read on each cylinder?

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    Not sure if there's a water jacket cover on top of the head, but that gasket could be bad. Otherwise, sounds like a head gasket to me also.

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    Quote Originally Posted by shawncouturier View Post
    so i got my sled out of storage yesterday, topped off the coolant, took it for a short ride and when i got back there was coolant steam coming out around the spark plug farthest from the water pump. i took the plug out and more steam came out. i don't know what could cause this, what do you guys think? on an 1998 polaris XLT btw.



    xltlongtack is online now Report Post

    Seems to be a lot of posts about this. There is also 3 o-rings around the spark plug well in the head. Look at REF #5 in this view. https://www.polarispartshouse.com/oe...1bb61/cylinder

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