John deere x520 motor problems

   / John deere x520 motor problems #1  

Johndeerex728

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Feb 5, 2011
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Tractor
John deaf x728
Ok this is what happened me and my dad bought the red fuel stai ball and put about 3 ounces in it's 5 gallon gas tank started it up for about 10 mins and it was fine then it sat for a week or two got started again and engine was knocking at idle and full throttle can some please help me with what's wrong.
 
   / John deere x520 motor problems #2  
I doubt the Stabil is the problem, how long did you run it with the knocking sound? If it is in warranty i would take it to the dealer to be checked out, no point in laying a hand on it yourself.
 
   / John deere x520 motor problems #3  
Did the oil light on the dash ever come on?
 
   / John deere x520 motor problems
  • Thread Starter
#4  
Markcuda said:
Did the oil light on the dash ever come on?

Nope it did not.
 
   / John deere x520 motor problems #5  
Did you figure out any thing more on the knocking noise?
 
   / John deere x520 motor problems
  • Thread Starter
#6  
Markcuda said:
Did you figure out any thing more on the knocking noise?

Well I started it las night while it was 66 degrees out and he stared up fine no knocking which is good news but bad because why was he doing it before.
 
   / John deere x520 motor problems #7  
Well I started it las night while it was 66 degrees out and he stared up fine no knocking which is good news but bad because why was he doing it before.

I'm going to guess it was cold enough that the oil didn't flow. I'm also going to guess you or your father shut it down once you heard the knocking (which may have stopped in a few minutes or less).
The oil in the sump would flow easier during the warmer (66 degrees) temperature.

So, you might want to use a lower viscosity oil during the winter months.
 

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