This is not a true runaway-engine situation I'm having (thankfully) because
there is no smoke, oil
level is not over-filled, and cutting the fuel
does actually stop the engine
What I am experiencing is the engine
running at max RPM
, and neither the kill switch nor manually adjusting the throttle lever on the engine stops it.
When it happened, The first thing I tried was pulling the fuel
line out from the filter and it slowed down and stopped.
Here's what I'm suspicious of (but I don't understand why this would cause the issue)... My alternator regulator
broke. I have a proper external 3-stage regulator
on the way, so to get by for a day or two we bypassed the alternator
regulator and installed a simple cutoff switch, so I could manually engage and disengage the alternator.
I *may* have inadvertently had this in the on position when I started the engine. I honestly can't remember due to the ensuing panic and confusion
I'm wondering if I did, could this have caused an issue and how? Or if it's unrelated, what might be the cause?
It is a Universal 25XPB with an electric lift
pump (which is working fine.)
At this point I'm scared to turn it on again. My air intake doesn't have a manual shutoff and is a bit of an awkward shape for blocking air flow, although maybe I could work something up that'd do it. Yanking the fuel line doesn't work quickly enough for my nerves to take.
Any pointers are appreciated.