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How did I blow my engine?

6.5K views 41 replies 16 participants last post by  fletchman919  
I think it was a little over filled. I think 1.7 quarts would have been perfect.
A little? Three pints is what the Operators manual calls for. That'd probably been perfect.
There had to be a dip stick (no offence) on the engine or it would have blown oil straight out of it like a geyser.
Was it not half way or better up on the stick?
We've all done silly things and some lessons are harder and more expensive than others.
 
Sure it could have just been lousy timing but I've never heard of anyone putting that much oil in a Kohler before so who's to say. We'll have to find a volunteer to try it again. Not sure what warm would have to do with it. I saw someone do it to a Toyota and that blew out the seals and gaskets about just as instantly. A case of oil in a four cylinder is not a good thing.

The op manual calls for 30w above 30 degrees and 10w30 below 30 degrees. I know the wrong weight oil at the wrong time of the year won't do that. Don't ask how I know.
 

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rods dont break suddenly for no apparent reason, especially not on an engine that previously ran fine.
It's been my experiance that engines usually run fine right up to the point that they break a rod. Then not so much.

With the new info that you ran it very low on oil (and the po evidently did too) before changing the oil then you shouldn't really be surprised that it broke a rod.
Where did you get that it should take 1.5 quarts of oil? As I said before the op manual for a Case 444 calls for 3 pints. They put Kohlers in lots of different brands of tractors and had different oil pans for them. You really need to be sure of what your doing this next time.
Rebuild the engine again, keep her full of oil (full to the full mark on the dip stick not coming out the fill tube) and you'll have a great tractor there. And we'll probably see some Sears tractors for sale in the classifieds.