Throttle plate screws missing on Kohler engine

   / Throttle plate screws missing on Kohler engine #1  

grabbit

New member
Joined
May 28, 2007
Messages
11
Tractor
John Deere D130
I have a JD STX38 with a Kohler engine. The engine suddenly went full bore and shut it down and found the throttle plate disconnected inside. I do not see the screws. Do I need to pull the engine apart to get them out before firing it up again? Or can I get two new screws and move on?
 
   / Throttle plate screws missing on Kohler engine #2  
I'd pull the head and have a look see.
 
   / Throttle plate screws missing on Kohler engine
  • Thread Starter
#3  
when putting head back on, how much torc should applied and any particular pattern? Any engine diagrams out there on web?
 
   / Throttle plate screws missing on Kohler engine #4  
when putting head back on, how much torc should applied and any particular pattern? Any engine diagrams out there on web?

What model Kohler, I have numerous service manuals.

Andy
 
   / Throttle plate screws missing on Kohler engine #6  
I have a JD STX38 with a Kohler engine. The engine suddenly went full bore and shut it down and found the throttle plate disconnected inside. I do not see the screws. Do I need to pull the engine apart to get them out before firing it up again? Or can I get two new screws and move on?


Those screws can bang around in a cylinder, ask me how I know. It may be a pain, but get them outta there or risk major damage, which would be a real pain. This was a B&S 15 horse riding lawnmower in my case, but the principle's the same. I didn't find out about it until the thing went full bore and made a heck of a racket while I was mowing.

Good luck.
 
   / Throttle plate screws missing on Kohler engine #7  
I agree. Find those screws. They may be pounded into the top of the piston.

When I was a kid my older brother lost a wing nut into the intake of a turbocharged engine. He figured it would "work its way out". It did, after it took out the vanes in the turbo and they in turn took out the engine.
 
   / Throttle plate screws missing on Kohler engine #8  
Look in the muffler first.
 
   / Throttle plate screws missing on Kohler engine
  • Thread Starter
#9  
Engine model is a Kohler CV13S

Removed plug..did not see anything. Looked up muffler, nothing.
 
   / Throttle plate screws missing on Kohler engine #10  
Look at the point of entry, intake, under intake valve, cyl., in the exhaust valve. If not there, you got lucky.
 

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