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Kohler K482 Twin Running Hot


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#1 bread320i OFFLINE  

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Posted September 20, 2013 - 11:09 AM

I recently got my 1886 running after it has been sitting for probably 10 years. Had it running for about 5 minutes and it ran nice and smooth with good power. Everything seemed good other then it seems to run hot.

I did the usual maintenance (oil, plugs, filters). The cooling fins of the engine are clean and clear, and all shrouds are in place. After 5 minutes I thought it was hotter then it should have been. I pulled the dip stick to check oil level and possibly gas in the crank case. The dip stick was to hot to hold for more then a minute.

The timing is set good, I can visually see timing mark with timing light in sight hole although not perfectly  centered in hole darn close though. 

What do I look at next?



#2 boyscout862 OFFLINE  

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Posted September 20, 2013 - 12:58 PM

First I would suspect a mouse nest but you said its all clear. What was the oil level and condition? You said that you changed it but there could be a leak. Could the flywheel fins be blocked so that the air doen't blow around the engine? Just the dipstick being hot may not really indecate that the engine is running too hot. That is a great tractor. Good Luck, Rick

#3 Bud W OFFLINE  

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Posted September 20, 2013 - 01:39 PM

Try removing the tins from ther head and cylinders and clean the dirt and grease from the fins, they are probably clogged shut. I had one that was so encrusted with crap, I had to use a hack saw blade to clean between them. You still need to be sure that your getting enough fuel flow because leaning out the fuel will make it run hot.

 

Bud



#4 HDWildBill OFFLINE  

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Posted September 20, 2013 - 01:53 PM

A mouse nest was the first thing I thought of.  Like Bud suggested remove the tins and make sure it is clean under the tin's.  Also check and make sure you have the correct plugs installed.  



#5 bread320i OFFLINE  

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Posted September 20, 2013 - 02:06 PM

The exterior of the engine is clean including every fin on the cylinders. I had every tin off while engine was on work bench.

 

I have new fuel lines, filter and electric fuel pump. Carburetor has been cleaned and inspected twice. I am convinced it is getting plenty of gas.


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#6 Bud W OFFLINE  

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Posted September 20, 2013 - 02:53 PM

With everything else covered, try turning the high speed needle out 1/4-1/2 turn.


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#7 EricFromPa ONLINE  

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Posted September 20, 2013 - 05:01 PM

With everything else covered, try turning the high speed needle out 1/4-1/2 turn.

 

:yeah_that: :ditto: :iagree:

 

 

If it's running a bit Lean they will heat up really quick.



#8 JDBrian OFFLINE  

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Posted September 20, 2013 - 08:09 PM

Are you getting lots of airflow at the front of the engine. You should feel quite a lot of air flowing out of the shrouding. 



#9 skyrydr2 OFFLINE  

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Posted September 21, 2013 - 06:03 AM

Withall that has been done, I too feel it could be running lean. Kohlers love fuel !! A 1/4 turn more or less could make it or break it .

#10 bread320i OFFLINE  

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Posted September 21, 2013 - 07:08 AM

Very true. My previous Bolens HT tractors always sucked a lot of fuel.



#11 wilberj ONLINE  

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Posted September 22, 2013 - 04:05 PM

They do run hot...



#12 bread320i OFFLINE  

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Posted September 26, 2013 - 09:59 AM

I gave it allittle more gas. Seems to run good so I will leave it and run it as is.






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