1986 417A wiring and starting help needed

[ebinmaine 71,825]

@JCM here's tractor #2...

 

 

I'd like to get this beast up n runnin' and drive it so I can see if the transmission is healthy.

 

After that I may borrow the engine for a bit for another tractor.  

 

The PO had a nephew that had good intentions but some folks just should not pick up a tool.  

The wiring is partially removed from the tractor. 

There is no test circuit board. 

There are no test lights. 

Here's the schematic diagram I've been using. 

 

 

The engine topside has a GREEN wire coming out where I believe it should have a BLUE wire for the (oil pressure sensor??). 

 

 

I have to assume it's a replacement wire and/or sensor. 

At the plug where that wire would normally lead into and exit there is NO wire on the outgoing side as it's been cut.  

Note the end of the screwdriver. 

 

 

 

Do I need the oil pressure sensor to be connected to start the engine?

If so what do I connect that green wire to?

 

Thanks.   

[Handy Don 13,683]

1 hour ago, ebinmaine said:

Do I need the oil pressure sensor to be connected to start the engine?

If so what do I connect that green wire to?

If you have the right schematic, then the oil switch is an indicator light only. Only the seat and PTO safeties affect start/run.

[ebinmaine 71,825]

6 hours ago, Handy Don said:

If you have the right schematic, then the oil switch is an indicator light only. Only the seat and PTO safeties affect start/run.

I believe the schematic is a colorized version of the OE Wheelhorse diagram so it should be right. 

 

That info makes sense. I'll do more when I get time. 

Those safety switches are temporarily bypass-able so it should be headed towards starting with a coil, 2 plugs, and 2 ignition wires. 

 

[953 nut 59,243]

10 hours ago, ebinmaine said:

get this beast up n runnin' and drive it so I can see if the transmission is healthy.   If your only goal is to get the engine running to test the engine and transmission then the only wiring you'll need is a temporary jumper wire from the battery "+" (switch optional) to the ignition coil "+" terminal and a small jumper wire from the battery side of the solenoid to the small blue wire on the solenoid for momentary contact (push button optional). 

 

10 hours ago, ebinmaine said:

Do I need the oil pressure sensor to be connected to start the engine?   NO, a test light to reassure you that there is oil pressure might be nice though.

 

Edited April 11, 2022 by 953 nut

[ebinmaine 71,825]

22 minutes ago, 953 nut said:

 If your only goal is to get the engine running to test the engine and transmission then the only wiring you'll need is a temporary jumper wire from the battery "+" (switch optional) to the ignition coil "+" terminal and a small jumper wire from the battery side of the solenoid to the small blue wire on the solenoid for momentary contact (push button optional

 

 

I wondered if that was a possibility. Thanks Richard.

[pacer 3,176]

Dont remember the model I had, but it hat that .... long! row of idiot lights and as I started fooling with it I pretty quickly could see that to get that mess back would take hours and prolly would still not be back right. And like you, I needed to see the thing run in order determine if it was even worth continuing. So, I ripped all that tangle out and reset it up with a simple on/off/run. Once I did that - which of course is simple - I had it running quickly ----- and, the best part was that every thing was AOK, and turned out to be a nice tractor.