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Oil In Valve Breather Area Kohler K341


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#1 FilledTires OFFLINE  

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Posted September 28, 2014 - 05:02 PM

Hi Everyone,

 

So I have been working on a Ford LGT 165, and it has been smoking quite a bit. I decided to pull the Breather Cover from the valve area, and there was quite a lot of oil in there.

 

2014-09-28 17.28.18.jpg

 

I take it this is not normal and the cause of the smoking engine. Is this correct?

 

When I took the breather cover off, it all came off in one piece. I should be able to separate the pieces right? Do I just pop them apart per the parts diagram in the manual?

 

Thanks for your help!



#2 KennyP ONLINE  

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Posted September 28, 2014 - 05:26 PM

Not an expert by any means, but I think you are ready for a new set of rings, if not a bore job!



#3 FilledTires OFFLINE  

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Posted September 28, 2014 - 05:38 PM

I am going to buy a leakage tester and see. I have a hunch it is not ring related, but cannot verify without the tester. The engine starts right away, so that would indicate I have good compression right?

 

Here is my logic so far. I am starting with easiest to test and moving to the hardest.

 

I pulled the fuel pump and there might be some leaking of gas into the oil through the worn out gasket between the pump and the filter. I will replace this gasket.

 

I then pulled the breather cover to inspect. Now I am thinking the oil in there is normal. The breather assembly looks good to me.

 

One thing I noticed is it is hard to get an oil level reading, because the oil seems thin. This would point me further in the direction of fuel in the oil thinning it to the point where it passes past the oil rings in the combustion chamber.

 

Am I am on the right track?



#4 Auburn David OFFLINE  

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Posted September 28, 2014 - 05:45 PM

Be sure the Crankcase breather isnt plugged up as well



#5 Auburn David OFFLINE  

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Posted September 28, 2014 - 05:52 PM

You can have decent compression and still have worn/stuck oil rings..



#6 FilledTires OFFLINE  

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Posted September 28, 2014 - 06:08 PM

Be sure the Crankcase breather isnt plugged up as well

This is the Valve Cover Breather, correct?



#7 FilledTires OFFLINE  

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Posted September 28, 2014 - 06:18 PM

Just ordered a leakage tester. Will let you know what I discover.


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#8 Auburn David OFFLINE  

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Posted September 28, 2014 - 07:30 PM

This is the Valve Cover Breather, correct?

Yes..



#9 Traill95 OFFLINE  

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Posted September 28, 2014 - 08:15 PM

plugged drain back hole in the cover you just took off? check the rounded corners for a small hole.


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#10 lyall ONLINE  

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Posted September 28, 2014 - 09:05 PM

also check the drain hole so that the oil drain back into the pan

there should be a small hole in the back under the stud bolt

 

breather.png

 

there should be a hole in the breather plate - it go on the bottom, so the oil drain back to the valve area

 

if you do not have a manual for the Kohler motor you can download it from the manual section.

it will how you a lot

 

if you had a lot of oil behind the breather plate the oil can get sucked up from the intake valve, cause you to burn oil


Edited by lyall, September 28, 2014 - 09:08 PM.


#11 DougT ONLINE  

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Posted September 28, 2014 - 10:39 PM

The gasket between the pump and the block won't cause the fuel to get in the oil. It would have to be a problem in the pump itself.


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