I have an 89 Grandvilla with a 3820 caterpillar. Can someone tell tell me what this red light is about?
Steve
Not oem maybe the Williams exhaust brake on light? I sold 89's new
After I start the engine, the steady red led light will flash if I press it. The engine will not turn off and will remain running for about five minutes even after the ignition key is turned off and removed. If I don't press it, the light will remain on steady, and shut off normally! Strange aftermarket item. I cannot find any documentation on this light anywhere !
Not oem for sure, my exhaust brake system which also used a Williams valve looks like this picture, lever can be used to increase or decrease exhaust back pressure on the fly based on a dash mounted exhaust backpressure guage. I leave it in automatic position for the most of the time as I do not not want to forget and float the exhaust valves and destroy the engine. Williams guillotine valve still worrks well since components are protected and not exposed to the main exhaust stream.
Strange, turbo protrection shut down system and pre oiler or post oiler I have no idea. I have a mystery switch under where your Williams tag is located.
That is my guess. Do a Google search for "diesel turbo protection timer" and you'll get lots of hits for similar devices.
Can you trace the wires from the light and see where they go? Might go to some kind of electronic module buried behind dash.
We have one. I *think* we have the documentation.
What we have here . . . Is a five minute cool down timer. Press the button, turn off the ignition switch and walk away. After five minutes the engine will stop running. Since we never know how hard the engine has really been running when we stop, we use the timer every time. Cheap insurance against heat related failures. Sure beats sitting with your hand on the collective watching the second hand on the clock.
Good idea, I suppose, if you pull directly off a highway into a rest area and want to immediately shut down your engine.
In our experience, by the time we get off the highway, find the RV park (or the dry camping area), get checked in, and actually get our coach parked...the engine has had more than enough idling time to cool down.
Thank you, thank you, thank you! When I accidentally pressed it, I started freaking out because the engine wouldn't shut off! Tore into the dashboard, removed and tested ignition switch, applied some percussive persuasion to the relay switch and nothing worked. If it's not too much of a hassle, could you scan me a copy of the documents for this timer? Your help has really been appreciated. Oh, by the way, "hand on the collective" two minute shutdown...hmmm? Helicopter pilot? Bell products products ?
Steve
Electronic Detroits and CATs come with a "idle" shutdown after 5 minutes programmed into the ECU. It's not a default setting so would have to be turned on. A ProLink 9000 can activate/de-activate. Password is usually 0000. Your mechanical engine may have had this installed but suggest you call a CAT shop.
Pierce
Hiller. The 6-cylinder Franklin didn't like all the lead in the 100/130 and would solder exhaust valves open if not cooled before shut down.
I'll see if I can scan and upload the documents tomorrow. I was lucky. That button was the first thing Lynn showed me after he returned home with our GV.
And here is the cartoon provided by the maker of the shut down timer.