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8n starter

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farmer craig

04-20-2017 21:31:26

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I have a 1948 8n 12 volt conversion, running fine for a day and the next day it won't even turn over. When I press the starter button it just clicks down inside the starter. Any ideas, thx in advance.

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04-21-2017 19:13:11

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
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Post like this make me glad I can fix my own chit and don't depend on being mislead down a ruff and rocky road...

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Indiana Ken

04-21-2017 18:35:07

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
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Click, click, click, typically results when the current draw from the starter reduces the voltage at the solenoid to a very low value, causing the solenoid to open. Since there is no current draw when the solenoid opens, the voltage returns and the cycle repeats. This suggests a weak battery or faulty connections between the solenoid and the battery.

Cleaning the starter mating surface is good maintence practice. But, the click click cycle suggests the problem is elsewhere.

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Indiana Ken

04-21-2017 05:30:38

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
If you get one click each time you press the starter button, it could be a problem with, 1) the solenoid contacts- not making contact, 2) the starter - brushes etc. not making contact or 3) the ground connection between the starter housing and tractor bell housing - clean mating surfaces.

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farmer craig

04-21-2017 15:18:39

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 Re: 8n starter in reply to Indiana Ken, 04-21-2017 05:30:38  
Thanks for the advice. I will try and clean the starter mating surface. When I press the starter down it continues to click click click as long as the starter button is held down. I will also make sure that the battery is fully charged. Thx again!

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Bruce (VA)

04-21-2017 15:23:42

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 Re: 8n starter in reply to farmer craig, 04-21-2017 15:18:39  
Don't forget the cables & their connections.

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Bruce (VA)

04-21-2017 04:22:09

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
The solenoid is making a noise because of low voltage. That is likely caused

1. A weak battery (charge it & check it per tip # 49. Or get it load

2. Dirty grounds/connections (remove the cables & clean the connections)

3. Bad cables or incorrect sized cables (replace them - see tip # 41)**

4. Bad ground between the starter & the block. (pull the starter away from the block & clean the mating area - see tip # 36)

* No matter what else you do, the battery must be fully charged. A float charger is helpful; not a trickle charger, but a float charger. (I use Battery Tenders on all my tractors) If you need to jump it, see tip # 43.

** You can't see corrosion under the insulation.

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Dell (WA)

04-20-2017 23:52:30

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
Craig......tip: yer BIG 3-terminal 6-volt starter solenoid works just fine on 12-volts. Same with yer 6-volt starter motor. Me? I'd pull the two 8-in starter screws and starter motor out about 1/2-in and sandpaper both sides of the gap fer better electrical contact. Putter back together and be amazed at the whurr-whurr of the starter motor 'stedda the rumpa-rumpa. Oh yeah, points (0.015) and condenser don't care, 6-or-12 volts. Ennytime, you have starting difficulties, change yer FLOODED sparkies. Recommend AutoLite 437's gapped 0.025. Don't throw yer FLOODED sparkies away, just clean'n'dry 'em, one-atta-time in HOT running engine and save'um fer the next time. (and there will be a NEXT time) Final comment, sometimes the battery clamps gitt corroded INSIDE the insulation. Only cure is NEW cable. ($5, cheap)........HTH, the amazed electrical Dell and self-appointed sparkie-meister

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04-20-2017 21:55:25

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 Re: 8n starter in reply to farmer craig, 04-20-2017 21:31:26  
discharged battery would be my first suspect, from there i'd start checking for loose and/or dirty cable connections.

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