Export thread

ch22 76516 kohler engine

#1

G

goat roper

I have a shorted out fuel solenoid wire that has 2 diodes in the wire, the wire splits into two separate wires that connects with the main wire harness. The diodes shorted out at the clip at the back of the engine. What are these diodes for? Could I wire them straight as they are burned up? This engine is in a cub cadet/mtd 3206 series mower, year 2000.
Thanks for any input,
RGM


#2

tom3

tom3

Are you sure these are diodes? Seems odd for a simple DC circuit to have those in it. If you have any junk electronics laying around you might find a couple diodes in there to use, old CFL or LED light bulbs too.


#3

Fish

Fish

You may have one wire going to the solenoid, the others to the kill circuit to the ignition coils, and you must be careful then.
The soleniod works with voltage to it to work, and usually grounds through the block/mount.
The kill wires connect the coils to ground to shut down the engine, and voltage must never reach the coils, as that will damage them.
Can you take some pics?


#4

G

goat roper

Fish said:
You may have one wire going to the solenoid, the others to the kill circuit to the ignition coils, and you must be careful then.
The soleniod works with voltage to it to work, and usually grounds through the block/mount.
The kill wires connect the coils to ground to shut down the engine, and voltage must never reach the coils, as that will damage them.
Can you take some pics?
Click to expand...
Let me post post a link to the website : https://pandpsmallengines.com/ it's in the manual section for a 3206 cub cadet year 2000. I hope this uploaded for you. Thanks for you help.

Attachments


  • 3206_2000.pdf
    592.2 KB · Views: 6


#5

Fish

Fish

Yeah, the two white wires to the coils go back to the "m" post on the keyswitch, and don't have anything to do with the fuel solenoid. Find and post the engine's spec numbers for a more detailed view of the engine's wiring.


#6

G

goat roper

Fish said:
Yeah, the two white wires to the coils go back to the "m" post on the keyswitch, and don't have anything to do with the fuel solenoid. Find and post the engine's spec numbers for a more detailed view of the engine's wiring.
Click to expand...


#7

Fish

Fish

OK, I see the diodes I guess you are talking about, on the red wires. I guess to prevent sending voltage back to the other switches during normal use.


#8

Fish

Fish

I was guessing diodes on the wires to the coils, which are white in this schematic.


#9

G

goat roper

It's a ch 22 spec 76516 Kohler


#10

G

goat roper

Kohler don't give an example of the wiring detail in their website. The one I posted is the best I have found.


#11

tom3

tom3

If I'm looking at this right the diodes are preventing a backflow current rather than rectification. If you bypass the diodes you might switch on the starter solenoid and the carb solenoid when starting and the constant current flow to the carb will go back the solenoid and the starter will keep running.


#12

tom3

tom3

And those are probably pretty stout diodes, not something in a modern electronic circuit.


#13

G

goat roper

tom3 said:
And those are probably pretty stout diodes, not something in a modern electronic circuit.
Click to expand...
tom3 said:
And those are probably pretty stout diodes, not something in a modern electronic circuit.
Click to expand...
You are probably right. Think it best for me to go on and order the wiring with the diodes i it.


Footer Links 1

Top