Onan 16hp governor

[davovinch 0]

Hi guys, I hope someone has experienced this before and can give me an idea about what I'm up against.

Problem: When the engine gets warm say after about 10 to 15 minutes of mowing I find myself gradually going faster and faster unless I dial back on the throttle. The tractor feels like it is going into runaway mode. I have checked an lubed all the pivot points in the governor linkage but with no improvement. If I let the engine cool off I then can repeat the whole scenario. My engine temp is good and the weather is cool and my cooling air is plentiful and not too hot, fins are clean. I bought this from a guy and this is really my first usage of it and of course he made no mention of the problem but I did notice he had put a new governor link on it. If only I'd thought about that at the sale.

Thanks in advance from N.W. PA

Dave

[rickv1957 75]

Hello and What model engine do you have,Rick

[davovinch 0]

Sorry, it's the P216 Onan.

Dave

[davovinch 0]

Problem Solved

Turned out to be fuel starvation causing it. Cleaned tank, replaced tank screen and fuel filter and the problem went away. The hint came from a 2 hr. drive to the nearest dealer's service department and a chat with a tech. I'll have to get those guys some donuts.

Dave

[davovinch 0]

problem not solved acting up again AAAARRRGGG!

[Save Old Iron 1,571]

Dave,

I can't believe someone told you starving an engine of fuel was actually going to make it run faster !

Send me the donuts.

Are you sure the throttle cable is not slowly creeping up to a higher setting - maybe the throttle arm needs to be "staked" a little at its pivot point ?

Is there anyway of telling what the RPM's are at runaway condition ?

Could it be the RPM's are not changing but the ground speed is ? What tractor is the 16HO Onan in ?