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Topic: No start (Read 917 times) previous topic - next topic

Re: No start

Reply #20 –
Brian,

That happened to another member who had a steep driveway so don't feel badly. He wondered why he had a hard time starting it the next day. Yes, good to bring it up to a thousand RPM for a minute or so to get all the air out. My tractor does the same thing. No fuel gauge so when it starts surging, I shut it down and add a couple of gallons. Sometimes takes a couple of minutes before it smooths out.

Our U300 has a button in the compartment that comes in handy. Not hard to run a duplex wire from the starter solenoid hot terminal back to a engine compartment switch and then connect the other wire to the small terminal on the starter. You could have a remote starter solenoid so be aware and just run the wires to it.

It does have a learning curve, especially when you are driving on the wrong side of the road. ;D  The longer you drive it, it smaller it gets. Just takes a while to get comfortable.

Pierce

Re: No start

Reply #21 –
Mr B, you can check if the fuel solenoid is getting power when the switch is turned on. I stands upright in the center of the engine side to side and near to the rear of the coach, front of the engine. If it is getting power and you think it is not opening, you can remove it and that will allow the engine to get fuel. To shut off the engine you would have to have the key off and reinstall the solenoid. Like Gary said if you could be pumping the primer pump and have someone crank it, it should start. You can use a remote start switch that puts power to the small wire on the starter

Re: No start

Reply #22 –

Hahaha, I am very comfortable driving it, Its magic to drive, But we have very skinny roads here,

I have had to back it up a few times and have another go at getting it around the corners,

The left rear is inches from the Rock wall, the mirrors are over the armourail on the right hand side, Any thing coming, Just has to wait till I am around the corner,

Are there any piccys of the Starter motor remote switch on here any where, Just the connections to the starter motor,
 I can do the switch easily enough, Just where the wires connect too,

There are lots of thingys, on the motor that have wires coming out of them, I did replace a burnt out wire on one, No idea on what it does,
All my previous diesels, had a start switch, Thats it, very simple, I turned one off with the Injector pump lever, other wise it wouldnt stop, Mainly Perkins 3 cylinder motors,

Re: No start

Reply #23 –
Brian,

All diesels used to be really easy to turn on and off. It was a mechanical link to the pump or if a Detroit 2 cycle ran away, it had a flapper on the engine to push that blocked off the air.

The electronic engines today are stopped by turning off the key. The ECU (ECM) cuts power to the injectors and the engine stops. Mercedes has done it best for a while with a vacuum system for the engine, door locks, etc. The engine will run without a battery with a vacuum actuator used to shut off the fuel. They can even be coasted down a hill, pulled into first (yes, automatic transmission) and will start.

Most of the others use an electrical solenoid to open and let fuel into the injection pump. Down side is if the solenoid fails or the vehicle runs out of 12V, the engine stops.

So, you need a switch with wires to power the solenoid from the engine compartment along with a push button to the starter solenoid. You could even just use a clip-on remote start switch you buy at the auto parts store. Either side would go to the small solenoid terminal and the other to the big hot one next to it. I don't have a schematic for your rig but I have attached a PDF showing the arrangement for our U300. Go to the starter motor at the bottom of the page and follow wire B25 (red) to the starter. This is where a remote starter could be wired in with a single wire going to a push button in the engine compartment with the other side of the push button connected to the engine batteries (if they are back there). Have to be careful not to push if you have the kind of transmission that could be left in gear. If you have a remote starter solenoid, other members may be able to help with the location.

You could also just turn on the key and that will open the fuel shutoff solenoid so you would not have to wire in anything for the fuel.

Pierce