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8N does not have spark (I desperately need help)

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pat wood

07-04-2006 10:23:12




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Ok. Here is what I have.
8N Ford. Had an front oilpan leak.
Fixed that w/the info from Del. Thanks Dell.
As I took off parts, I labeled them and also noted in a notebook the order nad placement. Labeled spark wires as they came of distributor housing.

I had to take off the front cover to install the one pc oil seal. That was easy enough.
Now I did turn the crankshaft a few times w/o the distributor base put back on. I thought there is only one way for the base to go back on as it is offset on the camshaft.

Got everything back on and tried to start the tractor. Nothing. No spark. Plenty of gas. Turns over fine. Battery is charged to 80-90%.

Tried polarizing the gen. Arm term on gen to neg post on bat. Still no spark at plugs. Have pulled plug and grounde to engine, no spark. Sanded all connections on gen (3 point) and also bolts.

I did not touch any other wires during removal of hood or oil pan.

Attached a test wire to the lead bolt on the coil
and turned engine over, no spark.

Can anyone help me? I am just about ready to sell it, my frustration is so high. I thought that this tractor would be a simple thing to have and funto tool around with, but I think I am over my head.

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BillM (OH)

07-04-2006 14:37:26




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 Re: 8N does not have spark (I desperately need hel in reply to pat wood, 07-04-2006 10:23:12  
If you have correct voltage to top of coil, and the coil is good, then the points/condenser (condenser can be bad out of the box) may be shorted out or points not opening - check with a VOA meter, check rotor, and that's it, (assuming the distributor is turning). Never give up!!!!



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Bob

07-04-2006 10:34:39




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 Re: 8N does not have spark (I desperately need hel in reply to pat wood, 07-04-2006 10:23:12  
The generator, and the polarizing thereof have NOTHING to do with starting, at this point.

You are NOT supposed to have a high-tension spark at the coil's top terminal, just about 3.5 Volts, if the engine has stopped at a point where the breaker points inside the distributor are CLOSED, or full battery voltage, if they are OPEN. (Assuming this is still an OEM 6-Volt system.)

If you DO NOT have the correct voltage to the coil's top terminal, likely there's an ignition switch or wiring problem.

Assuming you have the proper voltage to the coil's top terminal, and providing the distributor has been installed correctly, (and it's "guts" have not been pushed out of place by the drive tang being mis-aligned), try stretching the coiled "spring thingy" sticking out of the bottom of the call just a bit.

Put the coil back on, making sure the little spring thingy inserts straight down into the distributor body, where it enters a tapered recess in a special brass screw, and completes the electrical circuit between the coil's primary circuit, and the breker points/condensor.

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pat wood

07-04-2006 10:56:34




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 Re: 8N does not have spark (I desperately need hel in reply to Bob, 07-04-2006 10:34:39  
The drive tang went in easy. I made sure that it was alined before attempting to install the base. The base for the distributor wnet in easy.

I did stretch the pig's tail spring.

It is stil OEM 6 volts. Sorry for not including that.

Agian, I did nothing w/the wiring as it is all new.



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Bob

07-04-2006 10:58:26




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 Re: 8N does not have spark (I desperately need hel in reply to pat wood, 07-04-2006 10:56:34  
So, is there voltage to the coil's top terminal, in the range I previously posted?



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pat wood

07-04-2006 15:13:07




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 Re: 8N does not have spark (I desperately need hel in reply to Bob, 07-04-2006 10:58:26  
yes there is. I got it going. There was a minute crack in the cap.



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Dell (WA)

07-04-2006 15:21:53




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 Re: 8N does not have spark (I desperately need hel in reply to pat wood, 07-04-2006 15:13:07  
Pat..... ...thanks for the follow-up. bettcha 'member to check distributor caps for cracks from now on, huh? (BTDT) Dang, lazy sparkies ennyways.

Iff'n yer frontmount 4-nipple cap cracked, bettcha it was yer #2 sparkie nipple area. And yer frontaxle kingpin is sloppy and allows the axle to tilt-up and crack the cap. checker-out..... ...Dell, the mindreader



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monomechanical

07-04-2006 15:43:34




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 If you don't wanna fix yer sloppy frontaxle kingpi in reply to Dell (WA), 07-04-2006 15:21:53  
Now if you don't wanna fix yer sloppy frontaxle kingpin until winter but you wanta solve yer problems, here's what you do.

1. wrap a chain around the front axle (both sides) and loop that chain around the trunk of a big tree, and hook that chain to itself, so's you got a big circle.

2. Git yer mother in law to sit on yer tractor.

3. Tell her to put in the clutch and put the tractor in reverse.

4. Throttle up three-quarters.

5. Tell yer mother in law to let the clutch out real fast.

Once the tractor hits the chain resistance, the tractor should snap that front axle out about an inch and a half, thus keepin it from hittin yer 2nd sparkie nipple.

6. Collect mother in law.

7. DO NOT hold me responsible for this advice.

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Empennage

07-04-2006 19:46:58




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 Re: If you don't wanna fix yer sloppy frontaxle ki in reply to monomechanical, 07-04-2006 15:43:34  
ROTFLMAO!

I must say that I dont agree with #6, can I leave that out?



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Empennage

07-04-2006 19:46:55




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 Re: If you don't wanna fix yer sloppy frontaxle ki in reply to monomechanical, 07-04-2006 15:43:34  
ROTFLMAO!

I must say that I dont agree with #6, can I leave that out?



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