How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Curtis B. Your Own Question
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26026
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
30244710
Type Your Small Engine Question Here...
Curtis B. is online now
A new question is answered every 9 seconds

I have a 16 hp onan engine with one cyclinder missing. Have

Customer Question

I have a 16 hp onan engine with one cyclinder missing. Have changed plugs, coil, points condenser, wires, and checked compression. Miss still there
Submitted: 1 year ago.
Category: Small Engine
Expert:  JohnF2015 replied 1 year ago.

Hi, my name is***** will be assisting you.

Have you checked the intake gaskets where the intake mounts to the cylinder block? This engine has a history of the intake gaskets leaking after several hours of use. If you want to check this, start the engine and spray some carburetor cleaner around the base of the intake on both sides where the intake mounts to the cylinder and see if you notice any difference in running.

Customer: replied 1 year ago.
Have done that. Have done all remeny. This problem started after carb. rebuild.
Expert:  JohnF2015 replied 1 year ago.

In that case I have no other suggestions for you. I will opt out of you question, maybe one of the other experts here will pick up on it and have another suggestion.

Expert:  Curtis B. replied 1 year ago.

Is the exhaust port closed with carbon buildup?