Mep-802a no start.

[Lawman21]

I have 2 Mep-802a's with no start issues. Batteries relays fuses and emergency stop is out. Dead crank cranks over fluids are new and topped off. Aux prime fuel pump works. Just when switch is turned to start it just clicks..looked at TM and still no luck.

Thanks for any imput.

Eric

 

[robertsears1]

That sounds like my 804A when I first got it. My clicking sound was coming from the starting solenoid. I would tap and wiggle on it and eventually, it started. You could also have some corrosion somewhere and not enough juice is getting to the right spot. Know where your hand is when poking around behind panels. The main switch could also be dirty. Spray it with WD40 and exercise it well with the battery disconnected.

Robert

 

[Lawman21]

That sounds like my 804A when I first got it. My clicking sound was coming from the starting solenoid. I would tap and wiggle on it and eventually, it started. You could also have some corrosion somewhere and not enough juice is getting to the right spot. Know where your hand is when poking around behind panels. The main switch could also be dirty. Spray it with WD40 and exercise it well with the battery disconnected.

Robert

My clicking seems to be coming from the relays. I can see the relays moving.

 

[jamawieb]

Is the dead crank in the "normal" position?

 

[Lawman21]

Is the dead crank in the "normal" position?

Yes it is.

 

[Guyfang]

Place the S1 in the start position. Measure voltage at pin 3 & 7. Do you have 24 volts?

 

[Lawman21]

Place the S1 in the start position. Measure voltage at pin 3 & 7. Do you have 24 volts?

I will try that in the morning.

 

[Bmxenbrett]

The color coded electrical diagram helped me alot when mine wouldnt start. Mide didnt do anything. I had 5v at the master switch when it was in prime/run. Turns out a diode on the board in the back left was burnt. Since you have clicking you have some power. A voltmeter/diagram will really help you here

 

[Lawman21]

Place the S1 in the start position. Measure voltage at pin 3 & 7. Do you have 24 volts?

Cant find pin 3/7 looked at the diagram..pin 1 says 28.4v

 

[jamawieb]

Cant find pin 3/7 looked at the diagram..pin 1 says 28.4v

Take a picture of the switch and send it to us. Or describe the look of the switch so we can tell what switch you have, 3 different version's available.

 

[Lawman21]

Take a picture of the switch and send it to us. Or describe the look of the switch so we can tell what switch you have, 3 different version's available.

 

[Guyfang]

You have the first version. Measure on pins 3 and 7, while holding the switch in the start position. If you do not have 24 volts DC, then the switch is bad. Or miswired.

 

[jamawieb]

When looking at the switch with the access door down. Number 3 should be on the left towards the bottom and 7 is on the right towards the top of the switch.

 

[Bmxenbrett]

The terminals on the back of the switch is labeled on the actual switch. You had 28v with the fuel pump on?

 

[Guyfang]

Here is a picture of the switch and the wire numbers

View attachment Dok2.docx

 

[Daybreak]

S-1 start switch

 

[Lawman21]

Take a picture of the switch and send it to us. Or describe the look of the switch so we can tell what switch you have, 3 different version's available.[/QUOTE

Did you get the pictures?]

 

[csheath]

Will the starter operate with the dead crank switch?

 

[Lawman21]

Will the starter operate with the dead crank switch?

Yes dead crank works.

 

[Daybreak]

Did you get the pictures?

Howdy,

Take some pictures of the back side of your S-1 switch. Showing what wires are connected.