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Old 04-10-2013, 12:13 PM
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Default Oil Leak Johnson 140

I have a 2004 140 Johnson four stroke that suddenly started losing oil. It appears to leaking into the cooling water. Anybody have an idea of what the problem might be. Thanks
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Old 04-10-2013, 01:15 PM
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The 2004 johnson 4 stroke is really a zuke disguised as a johnson.
Is the oil low?
Where are you seeing the oil?
How much is it leaking or losing?
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Old 04-10-2013, 01:42 PM
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The shift linkage on early models - mine is 2002 - could have rubbed a hole in the bottom of the section known as the engine holder. This is also the part affected by corrosion associated with the unused O2 port. This was a design error by Suzuki that has been corrected on latter models. Only problem is a new engine holder casting is $500, and the powerhead has to be pulled to swap it out.
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Old 04-10-2013, 03:23 PM
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Oil cooler o-rings.
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Old 04-10-2013, 03:23 PM
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check the O rings under the oil filter/cooler assy, very common for them to be corroded because the servicing dealer never checked them, this allows oil to leak into the water (and vice versa)
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Old 04-10-2013, 03:24 PM
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OH, two posts at the exact same time! go figure.
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Old 04-10-2013, 05:26 PM
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rob I lose 2qts in 15 min
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Old 04-10-2013, 05:28 PM
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I have no water in the crak case. Would you expect water if it is the oring?
Thanks
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Old 04-10-2013, 06:39 PM
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Quote:
Originally Posted by rogernh View Post
I have no water in the crak case. Would you expect water if it is the oring?
Thanks
You should not see water in the oil because the oil pressure is much higher than the water pressure.
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www.lakeandsea.com

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Please, no tech questions by PM, email or phone.
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