Model 15 Eagle - Engine Quits while driving

OneLapper · July 01, 2016, 06:25:25 AM

I'm on Ian's band bus helping drive some long stints. Here are the symptoms;

Cruising at any speed, the engine stop light comes on for 20 seconds and engine dies.
Sometimes restarts in gear on 3rd or 4th try.
Sometimes you need to shift if into neutral to get it to restart.
Stop engine light flashes during failed restarts.
Oil pressure and water temps normal during this process.
Low on power went light is off.
Almost no power when light is on.
Engine shuts off when light flashes.
Engine is mechanical but must have some working alarm stat
No smoke from exhaust at all. Used to puff when starting off under full throttle.

*May* have started with the addition of fuel conditioner about 1000 miles ago.

Open to suggestions. Will have time to look for problems when we get to the next venue.

Thanks!

lostagain · July 01, 2016, 06:43:09 AM

You don't say what kind of engine/transmission. Assuming it is a Detroit 2 stroke, I am guessing screwy wiring related to the shut down system. Turn the shut down cylinder away from the lever on top of the governor for now. That happened to me once. It was wiring at the Skinner valve for the shut down.

JC

DoubleEagle · July 01, 2016, 06:47:37 AM

Yes, the Skinner Valve for the fuel shut-off is the first thing to check. There are two, one for fuel shut-off, and one for fast idle.

OneLapper · July 01, 2016, 07:02:52 AM

Series 60 with a HT740. I serviced the tranny about a month ago and the engine & tranny felt great. Good power and smooth shifts (after i changed the filters and ATF).

OneLapper · July 01, 2016, 07:05:29 AM

Thanks guys. Id be all over the skinner valve if it were a 2 stroke! It's getting worse as I type.

OneLapper · July 01, 2016, 07:15:47 AM

When the stop engine light is on but not flashing, if you get out of the throttle completely for about 20 seconds the light will go out and power is restored.

luvrbus · July 01, 2016, 07:43:07 AM

No codes ? go with your gut feeling on fuel supply then check the power from the battery to the ECM

OneLapper · July 01, 2016, 07:51:28 AM

We havent counted the flashes because we're driving.

Ok, it just died again. Stopped counting at 26 flashes. No obvious codes.

OneLapper · July 01, 2016, 07:53:08 AM

Cliff, do you know the spin on fuel filter numbers?

luvrbus · July 01, 2016, 08:02:45 AM

Mine are DD 5206 and 5207

OneLapper · July 01, 2016, 08:06:43 AM

Quote from: luvrbus on July 01, 2016, 08:02:45 AM
Mine are DD 5206 and 5207

Thank you. We've got 40 minutes to go, then we can shut it down and start looking. Its been a long run! Engine has quit about 50 times.

lostagain · July 01, 2016, 08:44:36 AM

Bad, corroded grounds will shut you down. Look in the electrical panels, wherever they are on an Eagle. I had the same symptoms in a MCI D3 with S60. It was corroded grounds

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OneLapper · July 01, 2016, 09:51:28 AM

We are parked at the venue. I'll take a look back there after I defrag for a few. Im thinking water temp sensor / switch or oil pressure shut down switch.

I'll see if I can find some fuel filters locally. And filter wrench. And a gallon of fuel.

eagle19952 · July 01, 2016, 01:32:32 PM

Quote from: OneLapper on July 01, 2016, 09:51:28 AM
We are parked at the venue. I'll take a look back there after I defrag for a few. Im thinking water temp sensor / switch or oil pressure shut down switch.

I'll see if I can find some fuel filters locally. And filter wrench. And a gallon of fuel.

low coolant would be my first look....

David Anderson · July 01, 2016, 03:38:34 PM

Quote from: eagle19952 on July 01, 2016, 01:32:32 PM
low coolant would be my first look....

I agree. Coolant in surge tank can be sucked into engine cooling loop below the low coolant sensor to trigger shutdown. It then can expand back into the surge tank and be high enough to allow a restart. Don't ask me how I know