318 JOHN DEERE

   / 318 JOHN DEERE #1  

GeneB64

New member
Joined
Apr 23, 2012
Messages
1
Location
lYMAN, S.C.
Tractor
318 jOHN dEERE
WHAT WILL CAUSE A P218G ONAN ENGINE TO LOSE FIRE AT PLUGS AFTER IT RUNS 20 MIN. AND LET COOL DOWN 20 OR 30 MIN. AND WILL CRANK AND RUN
 
   / 318 JOHN DEERE #3  
GeneB64 said:
WHAT WILL CAUSE A P218G ONAN ENGINE TO LOSE FIRE AT PLUGS AFTER IT RUNS 20 MIN. AND LET COOL DOWN 20 OR 30 MIN. AND WILL CRANK AND RUN

BAD COIL?
 
   / 318 JOHN DEERE #6  
Your coil is breaking down when hot and needs to be replaced.


What happens is that the windings heat up and expand and you lose the connection inside.

When it cools down the coils shrink and the connection is made allowing it to work for a few minutes.
 

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