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8N dies after 1/2 or so of mowing grass? why?

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Jason

07-22-1999 21:17:55




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8N dies after 1/2 or so of mowing grass? why?




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Steve (MD)

07-31-1999 18:54:25




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 Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Jason, 07-22-1999 21:17:55  
I have found that almost nothing is caused by only one thing. I had a similar problem and did all the things recommended in the earlier posting to find out that it was not a matter of heat but fuel level. The fuel strainer assemblies lower inlet was clogged. Once I got to the point in mowing that the tank was only 1/4 full, the engine would quit. Sometimes enough would slop around in the tank to let me limp it back to the shop, which made it even harder to figure out. You can figure this out by pulling the plug on the bottom of the carb when it quits. Make sure you let it run into a can so you don't spill it on the ground or your hot exhaust pipe! If no fuel, check the fuel strainer assembly. Good Hunting...Steve

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Phil (NJ)

07-24-1999 06:59:06




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 Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Jason, 07-22-1999 21:17:55  
Jason, Your Problem sounds like Gas tank venting (air into tank), the fuel used must be displaced by air. You can troulble shoot by Opening your Cap
,allowing air into the tank, and then closing.

Coil: You can Test your Coil by measuring the resistance in the primary, and if it is within Spec's your coil most likely is OK.

The overheating of a coil (chunk of wire with connections on each end) will melt the solder at the connections and these will become Hi-Res and
reduce current.

The ballast resister should go south before your
coil overheats but any resistive/loose connection will reduce the performance of your Coil.

Hope this helps,

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Phil (NJ)

07-24-1999 06:57:49




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 Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Jason, 07-22-1999 21:17:55  
Jason, Your Problem sounds like Gas tank venting (air into tank), the fuel used must be displaced by air. You can troulble shoot by Opening your Cap
,allowing air into the tank, and then closing.

Coil: You can Test your Coil by measuring the resistance in the primary, and if it is within Spec's your coil most likely is OK.

The overheating of a coil (chunk of wire with connections on each end) will melt the solder at the connections and these will become Hi-Res and
reduce current.

The ballast resister should go south before your
coil overheats but any resistive/loose connection will reduce the performance of your Coil.

Hope this helps,

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Dell (WA)

07-23-1999 00:04:33




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 Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Jason, 07-22-1999 21:17:55  
Jason..... ...This is a FAQ.....

Its been my experience that there are 2 time dependent "ignition problems" both seem to occure after about 1/2 hr of operation.

First is an obscure part called an ignition switch. The internal contacts get gunked up and after about 1/2 hr they heat up and reduce the voltage supplied to the ignition coil and suddenly there is not enuff volts to run the sparkies. Simple check. Use an alligator clippie test lead to by-pass the ignition switch the next time this happens. If you tractor starts right up, you've found your problem.

If the clippie "trick" doen't make your tractor start right up, then its the "other ignition problem", the ignition coil. Unfortunately, I know of no "eazy" check of the coil except by "replacement". Which is why I tell you to check your ignition switch first.

Yeah, points and condensers can also cause this problem, but experience convinces me its first the switch then the coil for heat/time related problems.

Hope this helps..... ..Dell

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JDChet

07-24-1999 18:50:41




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 Re: Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Dell (WA), 07-23-1999 00:04:33  
If you decide to buy a coil(a new coil fixed my similar problem), be sure to get it from a New Holland dealer. You will find that they have the best price (approx. $33). I have seen and been quoted some incredible prices for that coil!



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JOHN

07-22-1999 22:55:28




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 Re: 8N dies after 1/2 or so of mowing grass? why? in reply to Jason, 07-22-1999 21:17:55  
Greetings, Jason.
In order to get an idea as to what is wrong, you are going to have to give more information: does this happen always? Is this one half hour? one half day? Have you checked anything yet, such as air cleaner, fuel, coil? How long have you had the tractor? Does it die after doing anything else? Just as an off the wall guess, if ou haven't had the tractor very long, and it dies after ~ 1/2 hour of running, it might be the coil. It might also be a cracked head. Both of these can cause the tractor to die after it warms up, depending on some other thngs. Are there any other symptoms, such as water in the oil, or oil-like substance in the coolant? I have had some real irritating problems like this, but you have to eliminate the possible causes before starting to spend money on new parts, otherwise you can spend a small fortune on replacing things that don't need replacing. Good Luck!!
JOHN :>)

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gene l needles

07-23-1999 21:03:49




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 Re: Re: 8N dies after 1/2 or so of mowing grass? why? in reply to JOHN , 07-22-1999 22:55:28  
Try replacing the resistor. under $6.00 item. I did it after having the same problem (almost) and I can't turn it off. It is wonderful.



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