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Reload this Page 105 exhaust leak near head
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  #1  
Old 01-03-2026, 08:18 PM
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Default 105 exhaust leak near head
I was trying to start my 105 today and noticed what looked like some fuel coming out from under the head, blowing out towards the front of the tractor. I think when it runs, exhaust comes out of here. Is this concerning and what is the cause of this?
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  #2  
Old 01-04-2026, 07:52 AM
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That's a blown head gasket.

Follow the link

https://www.onlycubcadets.net/forum/...ead.php?t=5656
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Old 01-05-2026, 10:35 AM
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Quote:
Originally Posted by green407 View Post
That's a blown head gasket.

Follow the link

https://www.onlycubcadets.net/forum/...ead.php?t=5656
Agree, when you replace it make sure the head is nice and flat and clean. Torque,heat up,cool and re-torque at least 2-3 times and you shouldn't have an issue ,also get a good head gasket like a stens or genuine Kohler .
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Old 01-05-2026, 07:45 PM
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I very much appreciate the info, I will order the gasket and get it fixed.
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Old 01-06-2026, 07:12 PM
DSarow DSarow is offline
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It's always a good practice to keep up on periodically, checking and keeping head bolts to proper torque
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Old 01-09-2026, 01:30 PM
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In Matt's howto, he says to lightly oil the head bolts before putting them back. Am I reading this correctly? Reason I ask is that it would affect the effect of the torquing, putting the bolts in dry vs. oily.
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Old 01-09-2026, 04:15 PM
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In Matt's howto, he says to lightly oil the head bolts before putting them back. Am I reading this correctly? Reason I ask is that it would affect the effect of the torquing, putting the bolts in dry vs. oily.
Proper clamping force is why we oil the threads.
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Old 01-09-2026, 06:56 PM
finsruskw finsruskw is offline
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Have your camera ready when you pull the head and get us some pictures of the gasket and area of the head itself, OK?
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Old 01-09-2026, 07:57 PM
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I asked CoPilot,
"Should head bolts be oiled?"
The answer is....
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Old 01-09-2026, 08:12 PM
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And from the manual....
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