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Ford 9N, 2N & 8N Discussion Forum
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Electrical Help Needed

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Alan R

04-22-2006 08:14:30




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Update on my 8N project. After getting the correct (5/32 oil ring) piston rings, I was able to get the engine back together and everything went smoothly. Had a hard time getting the front crank pulley ratchet bolt changed, but finally got that done as well, so my hand crank works again. Put on my new belt and hoses, set the battery in place, put it in neutral, turned the key, hit the starter button and....nothing at all. No spark, no starter solenoid action, no deflection on the ammeter. Turns out the ammeter has been by-passed, but I don't think that's a problem at the moment. I'm wondering if the starter button should have some resistance. From looking at the manual, I'm thinking perhaps something is "stuck" and the interlock is not allowing me to attempt to start the engine. Is this a common problem? There is absolutely no resistance when depressing the button, so I don't think it is doing anything. Any ideas?

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ZANE

04-23-2006 05:57:25




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 Re: Electrical Help Needed in reply to Alan R, 04-22-2006 08:14:30  
If you used a starter solenoid that requires positive voltage at the small terminal as with 12 volts that is the problem and the transmission lock out starter swith is not going to work with it.

You should have tried using a jumper cable from the negative post of the six volt battery to the starter terminal first before you removed the starter. Then you would have known to look elsewhere if that made it turn.

You could test the starter with jumper cables too from the battery.

Using a battery charger for anything other than charging a battery is not a good idea.

Zane

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Alan R

04-23-2006 18:53:02




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 Re: Electrical Help Needed in reply to ZANE, 04-23-2006 05:57:25  
Okay, I get your point about the battery charger. This is still a 6 volt (pos ground) system, and I tried jumping from the neg terminal to the small terminal on the solenoid facing the block. That turns the starter. The key switch wires are okay (one reads ~6.3V and the other 0 until the key is turned, then both read 6.3). The terminal block is split in half and needs to be replaced. Could this be my problem? I will also need to reconnect my ammeter which was mysteriously by-passed at some point prior to my purchase. What else should I check (and how)? Thanks for the reply.

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dave guest

04-22-2006 15:12:01




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 Re: Electrical Help Needed in reply to Alan R, 04-22-2006 08:14:30  
If you got an ohm meter, you should read zero ohms or darn near from starter button teminal to clean ground(shiny) when pushed. Disconnect from solenoid first(no surprises). Also some battery chargers cannot be used as tester. If electronic, you may damage it. Better use long skinny jumpers from batt. to bench.



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Bob

04-22-2006 08:25:39




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 Re: Electrical Help Needed in reply to Alan R, 04-22-2006 08:14:30  
After making SURE the transmission is in NEUTRAL, short the terminal at the tranny-top starter button to ground. The solenoid should "kick in".

Is the solenoid positioned so the little terminal is on the side towards the engine?

(This is a unique solenoid for this application, and if you have picked up another version and replaced it, it will not engage when the little terminal is shorted to ground.)

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Alan R

04-22-2006 09:56:14




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 Re: Electrical Help Needed in reply to Bob, 04-22-2006 08:25:39  
Thanks. I tried grounding the starter button and still nothing from the solenoid. Put the starter on the workbench and hit it with my battery charger just to verify it works, and found that my battery charger has died. One of those days. I"m working outside between thunderstorms, so may not get any further until tomorrow. BTW, the solenoid is a replacement and did have the small terminal facing the block. The starter was working before the overhaul, so I think it"s okay, but I"ve heard that the solenoids can be a little tricky on the 8Ns. Thanks for the reply.

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dan hill

04-23-2006 03:18:37




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 Re: Electrical Help Needed in reply to Alan R, 04-22-2006 09:56:14  
Starters draw 75 to 100 amps no load,your 10 amp charger cant do it.30.00 will buy a spare battery for bench testing.Use it for testing lights,coils, generators, starters.Keep a full charge on it and it will be ready for boosting.



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Alan R

04-23-2006 18:55:38




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 Re: Electrical Help Needed in reply to dan hill, 04-23-2006 03:18:37  
Thanks. I understand what you're saying about the charger vs a battery. Good point.



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